Notebookcheck Logo
Teaser

Lenovo Chromebook Duet 11 review: Mobile energy-saving champion

Small battery long runtime.

Chromebooks don't need a lot of power to meet the demands of everyday use reliably. A battery with 29 Wh is enough for the economical device to run for 12 hours. However, the robust Chromebook Duet 11 also shows surprising strengths in other areas.
Marc Herter, 👁 Marc Herter, Anton Avdyushkin (translated by DeepL / Ninh Duy) Published 🇩🇪 🇫🇷 ...
Chromebook Convertible / 2-in-1 Tablet Laptop

Verdict

The Lenovo Chromebook Duet 11 is a convertible that scores with its flexibility and mobility. The detachable display, optional pen support, and long battery life make it an ideal companion on the go. The MediaTek Kompanio 838 processor ensures smooth everyday performance, which is perfectly adequate for typical Chromebook applications.

The 11-inch (approx. 28 cm) display in 16:10 format offers good sRGB color space coverage but shows a clear blue cast and only moderate color reproduction. The detachable keyboard is suitable for short texts and notes, but less comfortable for longer writing tasks. However, it is still significantly better than an on-screen keyboard.

Thanks to the passive cooling, the Chromebook Duet 11 works absolutely silently and remains pleasantly cool even under load. With a battery life of ten to twelve hours, you can easily get through the day.

All in all, the Lenovo Chromebook Duet 11 is a solid convertible that impresses primarily with its mobility, long battery life, and affordable price. It is ideal for anyone who is looking for a flexible, and mobile device for everyday use and work and can do without maximum performance.

Pros

+ Long battery life (approx. 10 hours)
+ Silent operation thanks to passive cooling
+ Affordable price
+ Lightweight and mobile
+ Good color space coverage (98.3 % sRGB)

Cons

- Limited performance (especially compared to x86 processors)
- Moderate color reproduction (blue cast)
- Keyboard with short travel and little feedback

Price and availability

The Lenovo Chromebook Duet 11M889 was only launched at the end of November and is currently difficult to find in stores. The version with 4 GB RAM is available on Amazon for around 320 euros. Our test device can be found as B-goods for around 370 euros at Computeruniverse.

As an alternative, the Lenovo Tab M11 which comes with Android instead of Chrome OS and is already available for 200 euros.

Amazon Logo
$399.98
Lenovo Chromebook Duet 3 2-in-1 Laptop Tablet w/Detachable Keyboard (11" QHD IPS Touchscreen, 8-Core Qualcomm CPU, 8GB RAM, 128GB eMMC) Lenovo USI Pen, 8MP Webcam, Wi-Fi, Chrome OS, Grey
  • $11.99
    Supershieldz Designed for Lenovo Chromebook Duet 5 (13.3 inch) Tempered Glass Screen Protector, Anti Scratch, Bubble Free
  • $309.10
    Lenovo Chromebook Duet - 2025-10.95" WUXGA Touchscreen Display - 4GB Memory - 64GB Storage - MediaTek Kompanio 838 - Chrome OS - Luna Grey

Possible competitors in comparison

Image
Model / Review
Price
Weight
Height
Display
1.
77.8%
Lenovo Chromebook Duet 11M889
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838 ⎘
ARM Mali-G57 MP3 ⎘
8 GB Memory, 128 GB eMMC
Amazon:
1. $399.98
Lenovo Chromebook Duet 3 2-i...
2. $11.99
Supershieldz Designed for Le...
3. $309.10
Lenovo Chromebook Duet - 202...
List Price: 450€
874 g17 mm10.95"
1920x1200
207 PPI
IPS
2.
79.4% v7 (old)
Lenovo IdeaPad Duet 5 Chromebook
Lenovo IdeaPad Duet 5 Chromebook
Qualcomm Snapdragon 7c ⎘
Qualcomm Adreno 618 ⎘
4 GB Memory, 64 GB eMMC
Amazon: $334.97
List Price: 450 USD
715 g7.2 mm13.30"
1920x1080
166 PPI
OLED
3.
81.2%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U ⎘
Intel UHD Graphics 64EUs (Alder Lake 12th Gen) ⎘
8 GB Memory, 512 GB SSD
Amazon:
1. $23.99
mCover Hard Case Only Compat...
2. $8.89
2 Pack Anti-Glare Screen Pro...
3. $362.00
Lenovo IdeaPad Flex 5 2-in-1...
List Price: 700€
1.6 kg21 mm14.00"
1920x1200
4.
79.5%
Acer Chromebook Plus CB514-4H
Acer Chromebook Plus CB514-4H
Intel Core i3-N305 ⎘
Intel UHD Graphics 32EUs (Alder Lake) ⎘
8 GB Memory, 128 GB SSD
Amazon: $299.86
List Price: 575€
1.4 kg20.5 mm14.00"
1920x1080
157 PPI
IPS
5.
78.1% v7 (old)
Asus Chromebook CM14 CM1402CM2A-EK0048
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek Kompanio 520 ⎘
ARM Mali-G52 MP2 ⎘
3.7 GB Memory, 128 GB eMMC
Amazon: $155.00
List Price: 319€
1.4 kg22 mm14.00"
1920x1080
157 PPI
TN
6.
83.4% v7 (old)
Lenovo Tab M11
Lenovo Tab M11
Mediatek Helio G88 ⎘
ARM Mali-G52 MP2 ⎘
4 GB Memory, 128 GB eMMC
Amazon: $159.99
List Price: 199€
465 g7.2 mm11.00"
1920x1200
206 PPI
IPS

The Lenovo Chromebook Duet 11 is a convertible that combines the flexibility of a tablet with the productivity of a laptop. With its detachable screen and optional pen support, it is aimed at anyone looking for a mobile and versatile device for everyday use and work. Whether for surfing, streaming, or simple office tasks - the Chromebook Duet 11 promises a smooth user experience thanks to Chrome OS and the MediaTek Kompanio 838 processor. However, it cannot quite keep this promise.

Specifications

Lenovo Chromebook Duet 11M889
Processor
MediaTek Kompanio 838 8 x 2 - 2.2 GHz, Cortex-A78 / A55
Graphics adapter
ARM Mali-G57 MP3 - 8 GB VRAM
Memory
8 GB 
, LPD4X-4266
Display
10.95 inch 16:10, 1920 x 1200 pixel 207 PPI, Capacitive, native pen support, IPS, glossy: yes, detachable screen, 60 Hz
Storage
128 GB eMMC Flash, 128 GB 
, eMMC 5.1, 100 GB free
Connections
2 USB 3.0 / 3.1 Gen1, USB-C Power Delivery (PD), 2 DisplayPort, Audio Connections: 3.5mm
Networking
802.11 a/b/g/n/ac (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/), Bluetooth 5.3
Size
height x width x depth (in mm): 17 x 255.37 x 166.92 ( = 0.67 x 10.05 x 6.57 in)
Battery
29 Wh, 3767 mAh Lithium-Polymer
Operating System
Google Chrome OS
Camera
Primary Camera: 8 MPix
Secondary Camera: 5 MPix
Additional features
Speakers: Stereo, Keyboard: Chiclet, Keyboard Light: no, 24 Months Warranty
Weight
874 g ( = 30.83 oz / 1.93 pounds) ( = 0 oz / 0 pounds)
Price
450 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Case & equipment

The Lenovo Chromebook Duet 11 comes in a trendy detachable design and consists of three components: the tablet itself, a detachable keyboard, and a back cover with an integrated stand. With a weight of around 500 grams and a thickness of approximately 7 millimeters, the tablet is pleasantly light and handy. The magnetically attached keyboard adds another 290 grams and 7 millimeters of thickness. A special highlight is the removable back cover in a gray leather look, which not only gives the Chromebook Duet 11 a stylish look but also ensures a secure stand with its integrated kickstand. This also adds another 150 grams and contributes 3 mm to the thickness of the overall package.

The tablet casing itself is angular and simple. Cool, gray aluminum meets a reflective glass touchscreen, framed by a black plastic frame. The display edge is comparatively wide at around 9 millimeters, which puts a slight damper on the modern design. With the stand, the tablet stands securely and can be used in all kinds of positions. However, the tablet and keyboard unit feel a little wobbly. In tests, both can be twisted quite easily. The magnetic connections between the three parts are also somewhat weak. The tablet should not be lifted by either the stand or the keyboard. At best, the detachable should be folded up, as the keyboard can also easily fall off if too much momentum is applied.

Size comparison

326.9 mm / 12.9 in 250 mm / 9.84 in 20.5 mm / 0.807 in 1.4 kg3.09 lbs325 mm / 12.8 in 227 mm / 8.94 in 22 mm / 0.866 in 1.4 kg3.14 lbs315 mm / 12.4 in 231 mm / 9.09 in 21 mm / 0.827 in 1.6 kg3.62 lbs305.9 mm / 12 in 186.8 mm / 7.35 in 7.2 mm / 0.2835 in 715 g1.576 lbs255.37 mm / 10.1 in 166.92 mm / 6.57 in 17 mm / 0.669 in 874 g1.927 lbs255.3 mm / 10.1 in 166.3 mm / 6.55 in 7.2 mm / 0.2835 in 465 g1.025 lbs297 mm / 11.7 in 210 mm / 8.27 in 1 mm / 0.03937 in 5.7 g0.01257 lbs
Top: USB-C 3.1 Gen 1 with PD and DP
Top: USB-C 3.1 Gen 1 with PD and DP
Left: 3.5 mm headset; USB-C 3.1 Gen 1 with PD and DP
Left: 3.5 mm headset; USB-C 3.1 Gen 1 with PD and DP
Networking
iperf3 transmit AX12
Average 802.11 a/b/g/n/ac
  (31.2 - 966, n=478)
358 MBit/s
Lenovo IdeaPad Duet 5 Chromebook
802.11 a/b/g/n/ac
325 MBit/s
iperf3 receive AX12
Average 802.11 a/b/g/n/ac
  (32.9 - 1065, n=479)
380 MBit/s
Lenovo IdeaPad Duet 5 Chromebook
802.11 a/b/g/n/ac
319 MBit/s
iperf3 transmit AXE11000
Average of class Convertible
  (131.3 - 1720, n=58, last 2 years)
1102 MBit/s
Lenovo Tab M11
802.11 a/b/g/n/ac
360 (353min - 368max) MBit/s
Average 802.11 a/b/g/n/ac
  (10.5 - 718, n=194)
350 MBit/s
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Wi-Fi 6E AX211
131.3 (4min - 1155max) MBit/s
Acer Chromebook Plus CB514-4H
Intel Wi-Fi 6E AX211
64 (11min - 1070max) MBit/s
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek MT7921
47.8 (11min - 248max) MBit/s
iperf3 receive AXE11000
Acer Chromebook Plus CB514-4H
Intel Wi-Fi 6E AX211
1767 (1476min - 1816max) MBit/s
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Wi-Fi 6E AX211
1755 (1419min - 1806max) MBit/s
Average of class Convertible
  (492 - 1755, n=58, last 2 years)
1263 MBit/s
Average 802.11 a/b/g/n/ac
  (20.1 - 695, n=193)
329 MBit/s
Lenovo Tab M11
802.11 a/b/g/n/ac
304 (283min - 325max) MBit/s
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek MT7921
104.2 (7min - 444max) MBit/s
iperf3 transmit AXE11000 6GHz
Average of class Convertible
  (685 - 1775, n=41, last 2 years)
1268 MBit/s
Acer Chromebook Plus CB514-4H
Intel Wi-Fi 6E AX211
385 (11min - 1232max) MBit/s
iperf3 receive AXE11000 6GHz
Acer Chromebook Plus CB514-4H
Intel Wi-Fi 6E AX211
1757 (1426min - 1828max) MBit/s
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Wi-Fi 6E AX211
1740 (1545min - 1828max) MBit/s
Average of class Convertible
  (824 - 1771, n=42, last 2 years)
1421 MBit/s
iPerf transmit 5GHz
Lenovo Chromebook Duet 11M889
802.11 a/b/g/n/ac
975 (917min - 1022max) MBit/s
Average 802.11 a/b/g/n/ac
  ()
975 MBit/s 0%
Average of class Convertible
  (last 2 years)
975 MBit/s 0%
iPerf receive 5GHz
Lenovo Chromebook Duet 11M889
802.11 a/b/g/n/ac
723 (661min - 769max) MBit/s
Average 802.11 a/b/g/n/ac
  ()
723 MBit/s 0%
Average of class Convertible
  (last 2 years)
723 MBit/s 0%
0501001502002503003504004505005506006507007508008509009501000Tooltip
Lenovo Chromebook Duet 11M889; iPerf transmit 5GHz; iperf 3.12: Ø975 (917-1022)
Lenovo Chromebook Duet 11M889; iPerf receive 5GHz; iperf 3.12: Ø723 (661-769)

Webcam

Webcam with shutter
Webcam with shutter

Typical for a tablet, the Lenovo Duet 11 not only has a webcam but also a main camera on the back. The front camera has a maximum resolution of five megapixels, the rear camera even has 8 MP. Both cameras record natively in 4:3 format. In terms of image quality, the cameras are impressive. The images are sharp, high-contrast, and offer relatively good color reproduction.

ColorChecker
3.8 ∆E
9.4 ∆E
10.6 ∆E
4.8 ∆E
8.3 ∆E
8 ∆E
2.8 ∆E
6.9 ∆E
4.7 ∆E
4 ∆E
7.1 ∆E
6 ∆E
5.9 ∆E
7.5 ∆E
1.9 ∆E
2.4 ∆E
5.9 ∆E
9.5 ∆E
2.1 ∆E
6.2 ∆E
8.3 ∆E
6.7 ∆E
7.6 ∆E
6.3 ∆E
ColorChecker Lenovo Chromebook Duet 11M889: 6.11 ∆E min: 1.86 - max: 10.62 ∆E
Test image main camera
Test image main camera

Sustainability

Unfortunately, no data on Lenovo's carbon footprint could be found for the Chromebook. However, the notebook's packaging is commendable. Lenovo has completely dispensed with plastic here.

As far as maintenance or repair of the Duet 11 is concerned, we have to conclude that it is probably not possible to work on the device without special tools. The screen is glued and there are no screws on the device. However, memory upgrades or similar are hardly necessary for Chromebooks. We are more pleased with Google's update promise for the device until 2034 - a total of nine years!

Input devices

With a detachable like the Lenovo Chromebook Duet 11, the main focus is naturally on the touchscreen. It responds promptly to inputs from up to ten fingers simultaneously and enables smooth and precise operation thanks to its smooth surface.

However, the detachable keyboard is less convincing. Both the keyboard itself and the integrated touchpad seem a little wobbly. The small keys with a short stroke and barely perceptible haptic feedback take some getting used to. The keyboard is sufficient for short texts and notes, but less suitable for longer writing tasks. Unfortunately, our test device did not come with the matching Lenovo USI Pen 2 Magnetic.

Removable type cover
Removable type cover

Display

Subpixel structure - vertical IPS display
Subpixel structure - vertical IPS display
Uniform illumination no recognizable halos
Uniform illumination no recognizable halos

The Lenovo Chromebook Duet 11 has an 11-inch display in a modern 16:10 format. With a resolution of 1920 x 1200 pixels, it delivers sharp images and offers enough space for office applications and multimedia content. A plus point is the good sRGB color space coverage of 98.3%, which is above the average of many other Chromebooks.

However, the display has a clear blue cast, which can be tiring for the eyes in the long term. The color reproduction is also only moderate with an average DeltaE2000 value of 4.76. Although the color deviations are hardly noticeable for untrained eyes, the display is less suitable for professional image editing.

379.6
cd/m²
383.9
cd/m²
390.3
cd/m²
376.7
cd/m²
423.1
cd/m²
407.9
cd/m²
408.1
cd/m²
408.7
cd/m²
390.2
cd/m²
Distribution of brightness
tested with X-Rite i1Pro 3
Maximum: 423.1 cd/m² (Nits) Average: 396.5 cd/m² Minimum: 3.0214 cd/m²
Brightness Distribution: 89 %
Center on Battery: 423.1 cd/m²
Contrast: 1487:1 (Black: 0.2845 cd/m²)
ΔE Color 4.76 | 0.5-29.43 Ø4.9
ΔE Greyscale 11.7 | 0.5-98 Ø5.1
98.3% sRGB (Calman 2D)
Gamma: 2.186
Lenovo Chromebook Duet 11M889
IPS, 1920x1200, 11", 60 Hz
Lenovo IdeaPad Duet 5 Chromebook
OLED, 1920x1080, 13.3", 60 Hz
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
1920x1200, 14", 60 Hz
Acer Chromebook Plus CB514-4H
IPS, 1920x1080, 14", 60 Hz
Asus Chromebook CM14 CM1402CM2A-EK0048
CMN 14E5, TN, 1920x1080, 14",  Hz
Response Times
29%
13%
1%
381%
Response Time Grey 50% / Grey 80% *
37 ?(16.5, 20.5)
2.3 ?(1.1, 1.2)
94%
30.8 ?(14.6, 16.2)
17%
35 ?(16.5, 18.5)
5%
37 ?(18.9, 18.1)
-0%
Response Time Black / White *
23 ?(11.5, 11.5)
2.6 ?(1.2, 1.4)
89%
21.2 ?(11.4, 9.8)
8%
24 ?(13.5, 10.5)
-4%
22.4 ?(18.6, 3.8)
3%
PWM Frequency
2000 ?(100)
60.2 ?(100)
-97%
24800 ?(50)
1140%
Screen
32%
13%
7%
-46%
Brightness middle
423.1
358
-15%
344
-19%
306
-28%
230
-46%
Brightness
397
366
-8%
333
-16%
284
-28%
204
-49%
Brightness Distribution
89
97
9%
94
6%
85
-4%
81
-9%
Black Level *
0.2845
0.263
8%
0.1871
34%
0.433
-52%
Contrast
1487
1308
-12%
1635
10%
531
-64%
Colorchecker dE 2000 *
4.76
1.93
59%
4
16%
4.88
-3%
8.91
-87%
Colorchecker dE 2000 max. *
11.69
4.78
59%
7
40%
8.39
28%
19.81
-69%
Greyscale dE 2000 *
11.7
1.6
86%
2
83%
6.3
46%
10.3
12%
Gamma
2.186 101%
2.22 99%
2.174 101%
2.081 106%
2.239 98%
CCT
8417 77%
6238 104%
6757 96%
7117 91%
11724 55%
Total Average (Program / Settings)
31% / 31%
13% / 13%
4% / 6%
168% / 71%

* ... smaller is better

Calman grayscale
Calman grayscale
Calman ColorChecker
Calman ColorChecker
Calman saturation
Calman saturation
sRGB color space 98.3 %
sRGB color space 98.3 %
Luminosity distribution white with a clear blue tint
Luminosity distribution white with a clear blue tint
 

Unfortunately, PWM (pulse width modulation) is used at a brightness of less than 30% (around 100 cd/m²), which can lead to headaches or eye flickering for sensitive users. On the positive side, however, the PWM frequency is comparatively high at around 2 kHz, which reduces the strain.

The response times of the display are in the medium range. At around 23 ms for black-to-white changes and 27 ms for gray-to-grey changes, it may not be the best choice for action-packed games and movies, but it is absolutely sufficient for everyday tasks.

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
23 ms ... rise ↗ and fall ↘ combined↗ 11.5 ms rise
↘ 11.5 ms fall
The screen shows good response rates in our tests, but may be too slow for competitive gamers.
In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 48 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (20.9 ms).
       Response Time 50% Grey to 80% Grey
37 ms ... rise ↗ and fall ↘ combined↗ 16.5 ms rise
↘ 20.5 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 50 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (32.7 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM detected 2000 Hz
Amplitude: 80 %
≤ 100 cd/m² brightness

The display backlight flickers at 2000 Hz (worst case, e.g., utilizing PWM) Flickering detected at a brightness setting of 100 cd/m² and below. There should be no flickering or PWM above this brightness setting.

The frequency of 2000 Hz is quite high, so most users sensitive to PWM should not notice any flickering.

Flickering occurs at relatively low brightness settings, so extended use at this brightness setting or lower can cause eyestrain.

In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8623 (minimum: 5 - maximum: 343500) Hz was measured.

100 % brightness
100 % brightness
30 % brightness
30 % brightness
25 % brightness
25 % brightness
20 % brightness
20 % brightness
15 % brightness
15 % brightness
10 % brightness
10 % brightness
5 % brightness
5 % brightness
0 % brightness
0 % brightness

The viewing angles are good. Colors and contrasts remain stable even at larger viewing angles of up to 30 degrees so that you can see something on the display even with two users. However, reflections quickly interfere with the readability of the display.

 
 

Performance

The Lenovo Chromebook Duet 11 is equipped with hardware that is tailored to the typical requirements of Chromebook users. The eight-core processor MediaTek Kompanio 838 is supported by 8 GB of DDR4 memory, which ensures smooth multitasking and fast loading times. A 128 GB eMMC memory is available for data storage.

Processor

The Lenovo Chromebook Duet 11 is powered by a MediaTek Kompanio 838. This octa-core processor consists of four powerful Cortex-A78 cores with a clock speed of up to 2.2 GHz and four energy-efficient Cortex-A55 cores. In everyday use, it ensures smooth performance in office applications, web browsing, and streaming.

In our benchmarks, the Kompanio 838 performs significantly better than other ARM processors that are often used in Chromebooks, such as the Snapdragon 7c or the Kompanio 520. Compared to entry-level processors of the x86 architecture, such as the Intel Core i3-N305 however, the Kompanio 838 has to admit defeat.

CPU Performance Rating: Percent
Geekbench 6.3: Multi-Core | Single-Core
Geekbench 5.5: Multi-Core | Single-Core
CPU Performance Rating
Average of class Convertible
 
99.8 pt
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U
75.4 pt
Acer Aspire 3 A315-24P-R77Z -2!
AMD Ryzen 5 7520U
53 pt
Acer Chromebook Plus CB514-4H
Intel Core i3-N305
50.5 pt
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838
34.5 pt
Average MediaTek Kompanio 838
 
33.4 pt
Lenovo IdeaPad Duet 5 Chromebook -2!
Qualcomm Snapdragon 7c
28 pt
Lenovo IdeaPad Slim 3 CB 14M868
MediaTek Kompanio 520
22.4 pt
Geekbench 6.3 / Multi-Core
Average of class Convertible
  (2291 - 15476, n=46, last 2 years)
10160 Points +343%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U
5403 Points +136%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305
4329 Points +89%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838
2291 Points
Average MediaTek Kompanio 838
  ()
2291 Points 0%
Lenovo IdeaPad Slim 3 CB 14M868
MediaTek Kompanio 520
1538 Points -33%
Geekbench 6.3 / Single-Core
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U
2323 Points +132%
Average of class Convertible
  (1003 - 2814, n=47, last 2 years)
2307 Points +130%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305
1146 Points +14%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838
1003 Points
Average MediaTek Kompanio 838
  ()
1003 Points 0%
Lenovo IdeaPad Slim 3 CB 14M868
MediaTek Kompanio 520
633 Points -37%
Geekbench 5.5 / Multi-Core
Average of class Convertible
  (2188 - 14243, n=58, last 2 years)
8927 Points +308%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U
5350 Points +145%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305
4562 Points +109%
Acer Aspire 3 A315-24P-R77Z
AMD Ryzen 5 7520U
3821 Points +75%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838
2188 Points
Average MediaTek Kompanio 838
  (1690 - 2188, n=2)
1939 Points -11%
Lenovo IdeaPad Duet 5 Chromebook
Qualcomm Snapdragon 7c
1725 Points -21%
Lenovo IdeaPad Slim 3 CB 14M868
MediaTek Kompanio 520
1532 Points -30%
Geekbench 5.5 / Single-Core
Average of class Convertible
  (806 - 2062, n=58, last 2 years)
1686 Points +109%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U
1495 Points +85%
Acer Aspire 3 A315-24P-R77Z
AMD Ryzen 5 7520U
1066 Points +32%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305
997 Points +24%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838
806 Points
Average MediaTek Kompanio 838
  (743 - 806, n=2)
775 Points -4%
Lenovo IdeaPad Duet 5 Chromebook
Qualcomm Snapdragon 7c
620 Points -23%
Lenovo IdeaPad Slim 3 CB 14M868
MediaTek Kompanio 520
510 Points -37%

System performance


CrossMark: Overall | Productivity | Creativity | Responsiveness
WebXPRT 3: Overall
WebXPRT 4: Overall
Mozilla Kraken 1.1: Total
PCMark for Android: Work 3.0 | Storage 2.0
Speedometer 3.0: Score
Jetstream 2: Total Score
CrossMark / Overall
Average of class Convertible
  (524 - 1912, n=59, last 2 years)
1487 Points +184%
Acer Chromebook Plus CB514-4H
UHD Graphics 32EUs, i3-N305, Kingston OM8PGP4128Q-AA
1027 Points +96%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
524 Points
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
524 Points 0%
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
348 Points -34%
CrossMark / Productivity
Average of class Convertible
  (554 - 1790, n=59, last 2 years)
1448 Points +161%
Acer Chromebook Plus CB514-4H
UHD Graphics 32EUs, i3-N305, Kingston OM8PGP4128Q-AA
1012 Points +83%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
554 Points
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
554 Points 0%
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
393 Points -29%
CrossMark / Creativity
Average of class Convertible
  (550 - 2183, n=59, last 2 years)
1607 Points +192%
Acer Chromebook Plus CB514-4H
UHD Graphics 32EUs, i3-N305, Kingston OM8PGP4128Q-AA
1050 Points +91%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
550 Points
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
550 Points 0%
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
340 Points -38%
CrossMark / Responsiveness
Average of class Convertible
  (381 - 1868, n=59, last 2 years)
1256 Points +230%
Acer Chromebook Plus CB514-4H
UHD Graphics 32EUs, i3-N305, Kingston OM8PGP4128Q-AA
1004 Points +164%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
381 Points
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
381 Points 0%
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
258 Points -32%
WebXPRT 3 / Overall
Asus Chromebook Flip CX5 CX5601FB
Iris Xe G7 96EUs, i7-1255U, Intel SSD 670p SSDPEKNU512GZ
366 Points +114%
HP Dragonfly Pro Chromebook
Iris Xe G7 80EUs, i5-1235U, 256 GB NVMe
305 Points +78%
Lenovo IdeaPad Gaming Chromebook 16
Iris Xe G7 80EUs, i5-1235U, Kioxia BG5 KBG50ZNT256G
299 Points +75%
Average of class Convertible
  (171 - 426, n=60, last 2 years)
277 Points +62%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
171 Points
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
171 Points 0%
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
121 Points -29%
WebXPRT 4 / Overall
Asus Chromebook Flip CX5 CX5601FB
Iris Xe G7 96EUs, i7-1255U, Intel SSD 670p SSDPEKNU512GZ
249 Points +80%
HP Dragonfly Pro Chromebook
Iris Xe G7 80EUs, i5-1235U, 256 GB NVMe
236 Points +71%
Average of class Convertible
  (91.2 - 314, n=57, last 2 years)
236 Points +71%
Lenovo IdeaPad Gaming Chromebook 16
Iris Xe G7 80EUs, i5-1235U, Kioxia BG5 KBG50ZNT256G
231 Points +67%
Acer Chromebook Plus CB514-4H
UHD Graphics 32EUs, i3-N305, Kingston OM8PGP4128Q-AA
194 Points +41%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
138 Points
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
138 Points 0%
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
80 Points -42%
Mozilla Kraken 1.1 / Total
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
1965.5 ms * -81%
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
1089 ms * -0%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
1088.7 ms *
Acer Chromebook Plus CB514-4H
UHD Graphics 32EUs, i3-N305, Kingston OM8PGP4128Q-AA
708.5 ms * +35%
Average of class Convertible
  (407 - 1089, n=60, last 2 years)
562 ms * +48%
Lenovo IdeaPad Gaming Chromebook 16
Iris Xe G7 80EUs, i5-1235U, Kioxia BG5 KBG50ZNT256G
495.9 ms * +54%
HP Dragonfly Pro Chromebook
Iris Xe G7 80EUs, i5-1235U, 256 GB NVMe
485.6 ms * +55%
Asus Chromebook Flip CX5 CX5601FB
Iris Xe G7 96EUs, i7-1255U, Intel SSD 670p SSDPEKNU512GZ
476.2 ms * +56%
PCMark for Android / Work 3.0
Acer Chromebook Plus CB514-4H
UHD Graphics 32EUs, i3-N305, Kingston OM8PGP4128Q-AA
11631 Points +7%
Asus Chromebook Flip CX5 CX5601FB
Iris Xe G7 96EUs, i7-1255U, Intel SSD 670p SSDPEKNU512GZ
11617 Points +7%
Lenovo IdeaPad Gaming Chromebook 16
Iris Xe G7 80EUs, i5-1235U, Kioxia BG5 KBG50ZNT256G
11558 Points +7%
HP Dragonfly Pro Chromebook
Iris Xe G7 80EUs, i5-1235U, 256 GB NVMe
11508 Points +6%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
10843 Points
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
10843 Points 0%
Average of class Convertible
  (last 2 years)
10843 Points 0%
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
6924 Points -36%
PCMark for Android / Storage 2.0
HP Dragonfly Pro Chromebook
Iris Xe G7 80EUs, i5-1235U, 256 GB NVMe
10759 Points +354%
Asus Chromebook Flip CX5 CX5601FB
Iris Xe G7 96EUs, i7-1255U, Intel SSD 670p SSDPEKNU512GZ
9895 Points +318%
Lenovo IdeaPad Gaming Chromebook 16
Iris Xe G7 80EUs, i5-1235U, Kioxia BG5 KBG50ZNT256G
9253 Points +291%
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
2565 Points +8%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
2368 Points
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
2368 Points 0%
Average of class Convertible
  (last 2 years)
2368 Points 0%
Speedometer 3.0 / Score
Average of class Convertible
  (5.91 - 29.3, n=7, last 2 years)
18.3 runs/min +210%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
5.91 runs/min
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
5.91 runs/min 0%
Jetstream 2 / Total Score
Average of class Convertible
  (127.2 - 435, n=23, last 2 years)
269 Points +111%
Asus Chromebook Flip CX5 CX5601FB
Iris Xe G7 96EUs, i7-1255U, Intel SSD 670p SSDPEKNU512GZ
245.056 Points +93%
HP Dragonfly Pro Chromebook
Iris Xe G7 80EUs, i5-1235U, 256 GB NVMe
232.839 Points +83%
Lenovo IdeaPad Gaming Chromebook 16
Iris Xe G7 80EUs, i5-1235U, Kioxia BG5 KBG50ZNT256G
216.171 Points +70%
Lenovo Chromebook Duet 11M889
Mali-G57 MP3, Kompanio 838, 128 GB eMMC Flash
127.224 Points
Average MediaTek Kompanio 838, ARM Mali-G57 MP3
  ()
127.2 Points 0%
Asus Chromebook CM14 CM1402CM2A-EK0048
Mali-G52 MP2, Kompanio 520, 128 GB eMMC Flash
74.4 Points -42%

* ... smaller is better

Mass storage

The Lenovo Chromebook Duet 11 uses 128 GB eMMC memory as mass storage. eMMC memories are slower compared to modern SSD hard disks but offer the advantage of a lower price. The eMMC memory should be sufficient for most Chromebook users, but those who save a lot of files or work with large programs may reach the limits of performance. However, with the two USB-C sockets, which deliver 5 GB/s, fast external storage can be connected.

Drive Performance Rating - Percent
Lenovo IdeaPad Duet 5 Chromebook -9!
64 GB eMMC Flash
100 pt
Acer Chromebook Plus CB514-4H -1!
Kingston OM8PGP4128Q-AA
72.8 pt
Lenovo Flex 5 Chrome 14IAU7 83EK002GE -5!
SK hynix HFS512GEJ4X112N
71.2 pt
Average 128 GB eMMC Flash
 
56.4 pt
Average of class Convertible
 
37.2 pt
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
30.4 pt
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
29.9 pt
Asus Chromebook CM14 CM1402CM2A-EK0048 -5!
128 GB eMMC Flash
17.5 pt
Cross Platform Disk Test (CPDT)
Memory Copy 4MB
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
SK hynix HFS512GEJ4X112N
9615.36 MB/s +12%
Average of class Convertible
  (8570 - 9615, n=2, last 2 years)
9093 MB/s +6%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
8570 MB/s
Average 128 GB eMMC Flash
  (3702 - 8570, n=2)
6136 MB/s -28%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
4931 (3758min, 4083.64P1 - 5875max) MB/s -42%
Acer Chromebook Plus CB514-4H
Kingston OM8PGP4128Q-AA
5.16 MB/s -100%
Random Read 4KB
Acer Chromebook Plus CB514-4H
Kingston OM8PGP4128Q-AA
29.08 MB/s +697%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
SK hynix HFS512GEJ4X112N
7.88 MB/s +116%
Average of class Convertible
  (3.65 - 7.88, n=2, last 2 years)
5.77 MB/s +58%
Average 128 GB eMMC Flash
  (3.65 - 7.76, n=2)
5.71 MB/s +56%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
4.2 (0.13min - 1184max) MB/s +15%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
3.65 MB/s
Random Write 4KB
Average 128 GB eMMC Flash
  (0.863 - 1.911, n=2)
1.387 MB/s +61%
Acer Chromebook Plus CB514-4H
Kingston OM8PGP4128Q-AA
1.33 MB/s +54%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
1.035 (0.1133min, 0.441368P1 - 4.04max) MB/s +20%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
0.863 MB/s
Average of class Convertible
  (0.399 - 0.863, n=2, last 2 years)
0.631 MB/s -27%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
SK hynix HFS512GEJ4X112N
0.399 MB/s -54%
Sequential Read
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
SK hynix HFS512GEJ4X112N
602.84 MB/s +565%
Acer Chromebook Plus CB514-4H
Kingston OM8PGP4128Q-AA
364.16 MB/s +301%
Average of class Convertible
  (90.7 - 603, n=2, last 2 years)
347 MB/s +283%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
123.6 (12.6min, 55.705P1 - 191.3max) MB/s +36%
Average 128 GB eMMC Flash
  (90.7 - 155.4, n=2)
123.1 MB/s +36%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
90.7 MB/s
Sequential Write
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
SK hynix HFS512GEJ4X112N
188.56 MB/s +148%
Acer Chromebook Plus CB514-4H
Kingston OM8PGP4128Q-AA
173.7 MB/s +128%
Average of class Convertible
  (76.1 - 188.6, n=2, last 2 years)
132.3 MB/s +74%
Average 128 GB eMMC Flash
  (76.1 - 92.2, n=2)
84.2 MB/s +11%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
77.7 (44.4min, 48.765P1 - 127.1max) MB/s +2%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
76.12 (90min) MB/s
PCMark for Android
Storage 2.0 random write int.
Average 128 GB eMMC Flash
  (1.09 - 59.5, n=13)
23.8 MB/s +1867%
Acer Chromebook Plus CB514-4H
Kingston OM8PGP4128Q-AA
1.59 MB/s +31%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
1.37 MB/s +13%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
1.21 MB/s
Average of class Convertible
  (last 2 years)
1.21 MB/s 0%
Asus Chromebook CM14 CM1402CM2A-EK0048
128 GB eMMC Flash
1.09 MB/s -10%
Storage 2.0 seq. write int.
Acer Chromebook Plus CB514-4H
Kingston OM8PGP4128Q-AA
292.4 MB/s +283%
Average 128 GB eMMC Flash
  (76.4 - 240, n=13)
161.5 MB/s +111%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
82.5 MB/s +8%
Asus Chromebook CM14 CM1402CM2A-EK0048
128 GB eMMC Flash
81.31 MB/s +6%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
76.4 MB/s
Average of class Convertible
  (last 2 years)
76.4 MB/s 0%
Storage 2.0 random read int.
Acer Chromebook Plus CB514-4H
Kingston OM8PGP4128Q-AA
43 MB/s +788%
Average 128 GB eMMC Flash
  (4.84 - 30.5, n=13)
19.1 MB/s +295%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
7.5 MB/s +55%
Asus Chromebook CM14 CM1402CM2A-EK0048
128 GB eMMC Flash
6.6 MB/s +36%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
4.84 MB/s
Average of class Convertible
  (last 2 years)
4.84 MB/s 0%
Storage 2.0 seq. read int.
Acer Chromebook Plus CB514-4H
Kingston OM8PGP4128Q-AA
374.61 MB/s +231%
Average 128 GB eMMC Flash
  (99.2 - 478, n=13)
240 MB/s +112%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
117 MB/s +3%
Average of class Convertible
  (last 2 years)
113.2 MB/s 0%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
113.16 MB/s
Asus Chromebook CM14 CM1402CM2A-EK0048
128 GB eMMC Flash
99.17 MB/s -12%
Storage 2.0
Lenovo IdeaPad Duet 5 Chromebook
64 GB eMMC Flash
19557 Points +726%
Average 128 GB eMMC Flash
  (2368 - 17319, n=18)
10060 Points +325%
Lenovo IdeaPad Slim 3 CB 14M868
64 GB eMMC Flash
2717 Points +15%
Asus Chromebook CM14 CM1402CM2A-EK0048
128 GB eMMC Flash
2565 Points +8%
Lenovo Chromebook Duet 11M889
128 GB eMMC Flash
2368 Points
Average of class Convertible
  (last 2 years)
2368 Points 0%

Graphics card

The graphics performance is provided by the integrated ARM Mali-G57 MP3. It is sufficient for displaying user interfaces and videos but reaches its limits with demanding 3D games.

GFXBench
2560x1440 Aztec Ruins High Tier Offscreen
Average of class Convertible
  (8.1 - 77.4, n=3, last 2 years)
37.5 fps +363%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U, Intel UHD Graphics 64EUs (Alder Lake 12th Gen)
27 fps +233%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305, Intel UHD Graphics 32EUs (Alder Lake)
15 fps +85%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
8.1 fps
Lenovo IdeaPad Duet 5 Chromebook
Qualcomm Snapdragon 7c, Qualcomm Adreno 618
7.3 fps -10%
Average ARM Mali-G57 MP3
  (5.8 - 8.1, n=10)
7.02 fps -13%
Lenovo Tab M11
Mediatek Helio G88, ARM Mali-G52 MP2
3.3 fps -59%
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek Kompanio 520, ARM Mali-G52 MP2
3.2 fps -60%
3840x2160 4K Aztec Ruins High Tier Offscreen
Average of class Convertible
  (3.6 - 33.9, n=3, last 2 years)
16.2 fps +350%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U, Intel UHD Graphics 64EUs (Alder Lake 12th Gen)
11 fps +206%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305, Intel UHD Graphics 32EUs (Alder Lake)
6.2 fps +72%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
3.6 fps
Average ARM Mali-G57 MP3
  (2.5 - 3.6, n=3)
2.9 fps -19%
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek Kompanio 520, ARM Mali-G52 MP2
1.4 fps -61%
Lenovo Tab M11
Mediatek Helio G88, ARM Mali-G52 MP2
1.4 fps -61%
1920x1080 Aztec Ruins Normal Tier Offscreen
Average of class Convertible
  (22 - 193.7, n=3, last 2 years)
97.2 fps +342%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U, Intel UHD Graphics 64EUs (Alder Lake 12th Gen)
76 fps +245%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305, Intel UHD Graphics 32EUs (Alder Lake)
47 fps +114%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
22 fps
Lenovo IdeaPad Duet 5 Chromebook
Qualcomm Snapdragon 7c, Qualcomm Adreno 618
20 fps -9%
Average ARM Mali-G57 MP3
  (16 - 22, n=10)
19.2 fps -13%
Lenovo Tab M11
Mediatek Helio G88, ARM Mali-G52 MP2
8.9 fps -60%
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek Kompanio 520, ARM Mali-G52 MP2
8.1 fps -63%
1920x1080 Car Chase Offscreen
Average of class Convertible
  (19 - 155.8, n=2, last 2 years)
87.4 fps +360%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305, Intel UHD Graphics 32EUs (Alder Lake)
46 fps +142%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
19 fps
Average ARM Mali-G57 MP3
  (13 - 20, n=9)
16.9 fps -11%
Lenovo IdeaPad Duet 5 Chromebook
Qualcomm Snapdragon 7c, Qualcomm Adreno 618
16 fps -16%
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek Kompanio 520, ARM Mali-G52 MP2
9.2 fps -52%
GPUScore: Sacred Path - 2560x1440 Official
Average of class Convertible
  (2.85 - 139.5, n=189, last 2 years)
50.1 fps +1658%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U, Intel UHD Graphics 64EUs (Alder Lake 12th Gen)
9.7 fps +240%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305, Intel UHD Graphics 32EUs (Alder Lake)
5.3 fps +86%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
2.85 fps
Average ARM Mali-G57 MP3
  (2.06 - 2.85, n=2)
2.46 fps -14%
GPUScore: The Expedition - 2560x1440 Official
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U, Intel UHD Graphics 64EUs (Alder Lake 12th Gen)
29.1 fps +292%
Average of class Convertible
  (7.43 - 29.1, n=2, last 2 years)
18.3 fps +146%
Acer Chromebook Plus CB514-4H
Intel Core i3-N305, Intel UHD Graphics 32EUs (Alder Lake)
14.8 fps +99%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
7.43 fps
Average ARM Mali-G57 MP3
  (5.67 - 7.43, n=2)
6.55 fps -12%
3DMark
Steel Nomad Light Score
Average of class Convertible
  (214 - 3620, n=9, last 2 years)
1840 Points +760%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
214 Points
Average ARM Mali-G57 MP3
  ()
214 Points 0%
Wild Life Extreme
Average of class Convertible
  (514 - 15282, n=8, last 2 years)
4803 Points +834%
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U, Intel UHD Graphics 64EUs (Alder Lake 12th Gen)
1983 Points +286%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
514 Points
Average ARM Mali-G57 MP3
  (337 - 514, n=6)
422 Points -18%
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek Kompanio 520, ARM Mali-G52 MP2
203 Points -61%
Lenovo Tab M11
Mediatek Helio G88, ARM Mali-G52 MP2
179 Points -65%
Wild Life Score
Average of class Convertible
  (1724 - 48110, n=3, last 2 years)
21504 Points +1147%
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
1724 Points
Average ARM Mali-G57 MP3
  (1220 - 1724, n=8)
1403 Points -19%
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek Kompanio 520, ARM Mali-G52 MP2
732 Points -58%
Lenovo Tab M11
Mediatek Helio G88, ARM Mali-G52 MP2
702 Points -59%
2560x1440 Sling Shot Extreme (ES 3.1)
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
3235 Points
Average of class Convertible
  (last 2 years)
3235 Points 0%
Average ARM Mali-G57 MP3
  (2478 - 3365, n=9)
2875 Points -11%
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek Kompanio 520, ARM Mali-G52 MP2
1458 Points -55%
Lenovo Tab M11
Mediatek Helio G88, ARM Mali-G52 MP2
1354 Points -58%

Emissions & Energy

Noise emissions

The Lenovo Chromebook Duet 11 manages completely without a fan. The MediaTek Kompanio 838 is passively cooled, which results in absolutely silent operation. This means you can concentrate fully on your work or movie enjoyment without being distracted by annoying fan noises.

The Chromebook is also spared from coil whine. During our test, we could not hear any disturbing high-frequency noises.

Overall, the Lenovo Chromebook Duet 11 presents itself as a pleasantly quiet device, where only the speakers can be heard when desired.

Temperature

With a maximum power consumption of 11 watts, the Duet 11 hardly heats up during operation. Both the front and the back of the tablet reach a maximum of 39 °C in our tests. This means that the Lenovo Chromebook Duet 11 remains comfortable even under load. It could only get a little warmer in direct sunlight.

Max. Load
 32 °C
90 F
38.3 °C
101 F
37.1 °C
99 F
 
 29.1 °C
84 F
29.5 °C
85 F
29.1 °C
84 F
 
 27.1 °C
81 F
28.7 °C
84 F
27.6 °C
82 F
 
Maximum: 38.3 °C = 101 F
Average: 30.9 °C = 88 F
36.4 °C
98 F
38.1 °C
101 F
37.1 °C
99 F
30.6 °C
87 F
30.7 °C
87 F
30.6 °C
87 F
28.9 °C
84 F
28.6 °C
83 F
28.7 °C
84 F
Maximum: 38.1 °C = 101 F
Average: 32.2 °C = 90 F
Power Supply (max.)  25 °C = 77 F | Room Temperature 22 °C = 72 F | Fluke t3000FC (calibrated), FIRT 550-Pocket
(+) The average temperature for the upper side under maximal load is 30.9 °C / 88 F, compared to the average of 30.2 °C / 86 F for the devices in the class Convertible.
(+) The maximum temperature on the upper side is 38.3 °C / 101 F, compared to the average of 35.3 °C / 96 F, ranging from 19.6 to 60 °C for the class Convertible.
(+) The bottom heats up to a maximum of 38.1 °C / 101 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25.8 °C / 78 F, compared to the device average of 30.2 °C / 86 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 31.5 °C / 88.7 F and are therefore cool to the touch.
(-) The average temperature of the palmrest area of similar devices was 28 °C / 82.4 F (-3.5 °C / -6.3 F).
Idle screen
Idle screen
Stress test screen
Stress test screen
Idle back
Idle back
Stress test back
Stress test back
Lenovo Chromebook Duet 11M889
MediaTek Kompanio 838, ARM Mali-G57 MP3
Lenovo IdeaPad Duet 5 Chromebook
Qualcomm Snapdragon 7c, Qualcomm Adreno 618
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
Intel Core i3-1315U, Intel UHD Graphics 64EUs (Alder Lake 12th Gen)
Acer Chromebook Plus CB514-4H
Intel Core i3-N305, Intel UHD Graphics 32EUs (Alder Lake)
Asus Chromebook CM14 CM1402CM2A-EK0048
MediaTek Kompanio 520, ARM Mali-G52 MP2
Lenovo Tab M11
Mediatek Helio G88, ARM Mali-G52 MP2
Heat
9%
-15%
11%
15%
12%
Maximum Upper Side *
38.3
34.6
10%
40
-4%
35.1
8%
30.4
21%
35.5
7%
Maximum Bottom *
38.1
41.6
-9%
50
-31%
41.1
-8%
37.1
3%
34.7
9%
Idle Upper Side *
31.5
22.4
29%
29.7
6%
23.5
25%
21.8
31%
24.6
22%
Idle Bottom *
27.2
26.2
4%
35
-29%
22.6
17%
25.9
5%
24.2
11%

* ... smaller is better

Speaker

The speakers of the Lenovo Chromebook Duet 11 deliver an overall pleasant sound, which is primarily characterized by its linear reproduction in the mid and high-frequency range. However, you have to do without deep bass, as all frequencies below 160 Hz are cut off. So if you like listening to music with powerful bass, you should use external speakers or headphones. In addition to Bluetooth for wireless connection, a classic 3.5 mm jack connection is also available.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs204641.741.82537.634.134.43139.635.433.24035.730.332.15029.729306329.827.7268026.421.519.310024.120.516.712526.919.820.71604218.939.92005715.654.725060.114.958.631563.916.460.240069.714.465.550069.614.264.663066.314.161.380068.413.664.7100067.115.162.31250681463160069.213.563200071.614.265.5250069.315.363.3315066.313.660.940006615.16150006615.760.8630067.515.861.9800064.91458.61000059.413.953.41250065.114.157.91600051.812.745.6SPL79.926.774.5N46.30.733.9median 66median 14.4median 60.9Delta71726.325.821.422.12624.925.127.622.532.523.448.72655.818.860.922.167.2267019.372.317.674.217.774.319.575.31571.711.871.311.27410.574.21072.710.17210.67210.97511.374.811.671.71269.71269.612.371.112.669.61270.111.269.824.784.70.666.6median 12median 71.73.42.2hearing rangehide median Pink NoiseLenovo Chromebook Duet 11M889Apple MacBook Pro 16 2021 M1 Pro
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Lenovo Chromebook Duet 11M889 audio analysis

(±) | speaker loudness is average but good (79.9 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 20.3% lower than median
(±) | linearity of bass is average (13.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.8% away from median
(+) | mids are linear (4.2% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.8% away from median
(+) | highs are linear (4.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (15.9% difference to median)
Compared to same class
» 26% of all tested devices in this class were better, 3% similar, 72% worse
» The best had a delta of 6%, average was 21%, worst was 57%
Compared to all devices tested
» 22% of all tested devices were better, 5% similar, 73% worse
» The best had a delta of 4%, average was 24%, worst was 134%

Apple MacBook Pro 16 2021 M1 Pro audio analysis

(+) | speakers can play relatively loud (84.7 dB)
Bass 100 - 315 Hz
(+) | good bass - only 3.8% away from median
(+) | bass is linear (5.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 1.3% away from median
(+) | mids are linear (2.1% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.9% away from median
(+) | highs are linear (2.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (4.6% difference to median)
Compared to same class
» 0% of all tested devices in this class were better, 0% similar, 100% worse
» The best had a delta of 5%, average was 18%, worst was 45%
Compared to all devices tested
» 0% of all tested devices were better, 0% similar, 100% worse
» The best had a delta of 4%, average was 24%, worst was 134%

Power consumption

The Lenovo Chromebook Duet 11 is a real energy saver when it comes to power consumption. Even under full load in the stress test, it doesn't even consume 11 watts. This low power consumption naturally also contributes to the fact that the device hardly generates any heat. The power supply unit with its 45 watts is only utilized when charging.

Power Consumption
Off / Standbydarklight 0.07 / 0.3 Watt
Idledarkmidlight 1.7 / 4.5 / 4.9 Watt
Load midlight 4.37 / 9.98 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Lenovo Chromebook Duet 11M889
Kompanio 838, Mali-G57 MP3, 128 GB eMMC Flash, IPS, 1920x1200, 11"
Lenovo IdeaPad Duet 5 Chromebook
SD 7c, Adreno 618, 64 GB eMMC Flash, OLED, 1920x1080, 13.3"
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
i3-1315U, UHD Graphics 64EUs, SK hynix HFS512GEJ4X112N, , 1920x1200, 14"
Acer Chromebook Plus CB514-4H
i3-N305, UHD Graphics 32EUs, Kingston OM8PGP4128Q-AA, IPS, 1920x1080, 14"
Asus Chromebook CM14 CM1402CM2A-EK0048
Kompanio 520, Mali-G52 MP2, 128 GB eMMC Flash, TN, 1920x1080, 14"
Average ARM Mali-G57 MP3
 
Average of class Convertible
 
Power Consumption
-33%
-156%
-77%
-54%
37%
-376%
Idle Minimum *
1.7
0.96
44%
4.85
-185%
2
-18%
3.03
-78%
1.01 ?(0.58 - 2, n=8)
41%
Idle Average *
4.5
6.7
-49%
5.35
-19%
3
33%
5.7
-27%
2.14 ?(1.17 - 4.5, n=8)
52%
Idle Maximum *
4.9
6.8
-39%
6.7
-37%
6
-22%
7.7
-57%
2.28 ?(1.23 - 4.9, n=8)
53%
Load Average *
4.37
9
-106%
12.5
-186%
10.9
-149%
8.7
-99%
Load Maximum *
9.98
11.4
-14%
45
-351%
33
-231%
11.1
-11%

* ... smaller is better

Power consumption

0123456789101112131415Tooltip
Lenovo Chromebook Duet 11M889 Kompanio 838, Mali-G57 MP3; Idle 150cd/m2: Ø2.49 (2.36-3.06)
Lenovo Flex 5 Chrome 14IAU7 83EK002GE i3-1315U, UHD Graphics 64EUs; Idle 150cd/m2: Ø6.62 (6.4-7.91)
Lenovo Chromebook Duet 11M889 Kompanio 838, Mali-G57 MP3; Asphalt 8 high 150cd: Ø4.37 (3.93-7.38)
Lenovo Flex 5 Chrome 14IAU7 83EK002GE i3-1315U, UHD Graphics 64EUs; Asphalt 8 high 150cd: Ø12.5 (11.9-15.7)
Lenovo Chromebook Duet 11M889 Kompanio 838, Mali-G57 MP3; Geekbench 5.5 Power Consumption 150cd: Ø6.52 (3.44-9.98)
Lenovo Chromebook Duet 11M889 Kompanio 838, Mali-G57 MP3; 1920x1080 Aztec Ruins Normal Offscreen: Ø5.64 (4.75-7.32)

Battery life

The MediaTek Kompanio 838 processor in Lenovo's Chromebook Duet 11 is very energy efficient. Although the battery in the Duet with 29 Wh does not seem very generous at first glance, our measurements of the energy consumption show that the Chromebook uses its resources very sparingly.

In the practical WLAN web surfing test, the Lenovo Chromebook Duet 11 achieved a battery life of around 12 hours. This will easily get you through a working day or a long flight.

Another plus point in terms of energy: The Lenovo Chromebook Duet 11 can be powered with a simple USB charger with 5V and 2A. This means you can easily charge it on the go with small and lightweight power banks and significantly extend the battery life. This makes the Chromebook Duet 11 an ideal travel companion that lasts a long time away from the power socket.

Battery Runtime
WiFi Websurfing
11h 36min
Lenovo Chromebook Duet 11M889
Kompanio 838, Mali-G57 MP3, 29 Wh
Lenovo IdeaPad Duet 5 Chromebook
SD 7c, Adreno 618, 42 Wh
Lenovo Flex 5 Chrome 14IAU7 83EK002GE
i3-1315U, UHD Graphics 64EUs, 51 Wh
Acer Chromebook Plus CB514-4H
i3-N305, UHD Graphics 32EUs, 51 Wh
Asus Chromebook CM14 CM1402CM2A-EK0048
Kompanio 520, Mali-G52 MP2, 42 Wh
Lenovo Tab M11
Helio G88, Mali-G52 MP2,  Wh
Average of class Convertible
 
Battery Runtime
WiFi v1.3
696
660
-5%
555.4
-20%
660
-5%
725
4%
896
29%

Notebookcheck overall rating

Lenovo Chromebook Dueet 11 - Provided by Google
Lenovo Chromebook Dueet 11 - Provided by Google

With a removable display and long battery life, the Lenovo Chromebook Duet 11 impresses as a flexible convertible. The MediaTek Kompanio 838 delivers sufficient performance for everyday tasks, while the passive cooling ensures silent operation. The 16:10 display offers good color space coverage but could have better color reproduction.

With its mobility and affordable price, the Lenovo Chromebook Duet 11 is an interesting option for anyone looking for an uncomplicated and versatile device for use on the go.

Lenovo Chromebook Duet 11M889 - 01/20/2025 v8
Marc Herter

Chassis
81 / 98 → 83%
Keyboard
54%
Pointing Device
96%
Connectivity
52 / 74 → 71%
Weight
77 / 20-75 → 100%
Battery
89%
Display
71%
Games Performance
8 / 65 → 13%
Application Performance
46 / 92 → 50%
AI Performance
9%
Temperature
93%
Noise
100%
Audio
78 / 91 → 86%
Camera
68 / 75 → 91%
Average
61%
78%
Convertible - Weighted Average
CO2 Emissions
No Data
Materials
0%
Packaging
100%
Power Use
94.4%
Repairability
Software Updates
100%
Recycle Logo Total Sustainability Score: 0%

Transparency

The selection of devices to be reviewed is made by our editorial team. The test sample was provided to the author as a loan by the manufacturer or retailer for the purpose of this review. The lender had no influence on this review, nor did the manufacturer receive a copy of this review before publication. There was no obligation to publish this review. We never accept compensation or payment in return for our reviews. As an independent media company, Notebookcheck is not subjected to the authority of manufacturers, retailers or publishers.

This is how Notebookcheck is testing

Every year, Notebookcheck independently reviews hundreds of laptops and smartphones using standardized procedures to ensure that all results are comparable. We have continuously developed our test methods for around 20 years and set industry standards in the process. In our test labs, high-quality measuring equipment is utilized by experienced technicians and editors. These tests involve a multi-stage validation process. Our complex rating system is based on hundreds of well-founded measurements and benchmarks, which maintains objectivity. Further information on our test methods can be found here.

Read all 2 comments / answer
static version load dynamic
Loading Comments
Comment on this article
Please share our article, every link counts!
Mail Logo
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Reviews > Lenovo Chromebook Duet 11 review: Mobile energy-saving champion
Marc Herter, 2025-01-19 (Update: 2025-01-19)