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Asus ZenBook Flip S UX370UA (i5, 256 GB, FHD) Convertible Review

Sebastian Bade, Tanja Hinum (translated by Katherine Bodner), 10/06/2017

I'm blue Da ba dee da ba di! Colors are not the only interesting aspect of the new ZenBook Flip S. Asus has presented a very slim 13-inch convertible and the Intel Core i5-7200U at the heart of the device offers decent processing power. To find out how well the hardware works together and whether the stylish convertible can keep up with its competition, take a look at our detailed review.

For the original German review, click here.

The Asus ZenBook Flip S UX370UA is a 13-inch convertible. It is equipped with an Intel CPU of the Kaby Lake generation. There are two models available: the Intel Core i5-7200U and the Intel Core i7-7500U. The processors can be accompanied by either 8 or 16 GB of RAM and storage options range up to 1 TB. Asus even offers a choice of displays for the ZenBook Flip S: A Full HD screen or a 4K panel.

Our test unit is the entry-level model and is equipped with the Intel Core i5-7200U with 8 GB of RAM and a 256-GB SSD. This configuration seems to be currently not available in the US. The i7-Model with 16 GB of RAM and a 512 GB SSD is available for about $1400. Asus offers two color options: a combination of blue and gold or gray and silver. The very deep blue of our test unit is nicely complemented by gold highlights and the notebook really looks very fancy and memorable. But as optics alone do not make a good laptop, we will be taking a closer look at how its hardware components work together and compare this with some competitors. You will find an overview of the devices we have chosen in the table below.

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Samsung Galaxy Book 12 Microsoft Surface Pro 2017 Fujitsu Lifebook P727 Lenovo Ideapad Miix 720 Dell Latitude 5289
CPU Intel Core i5-7200U Intel Core i7-7300U Intel Core i7-7600U Intel Core i7-7500U Intel Core i7-7300U
GPU Intel HD Graphics 620 Intel HD Graphics 620 Intel HD Graphics 620 Intel HD Graphics 620 Intel HD Graphics 620
Panel 12-inch 2160 x 1440 12.3-inch 2736 x 1824 12.5-inch 1920 x 1080 12-inch 2880 x 1920 12.5-inch 1920 x 1080
RAM 8 GB 8 GB 16 GB 16 GB 8 GB
Storage 256-GB SSD 256-GB SSD 512-GB SSD 1024-GB SSD 256-GBSSD
Score 88 % 90 % 84 % 85 % 84 %
Asus ZenBook Flip S UX370 (Zenbook Flip S Series)
Graphics adapter
Intel HD Graphics 620, 21.20.16.4627 WHQL
Memory
8192 MB 
, DDR3, Dual-Channel, soldered on
Display
13.3 inch 16:9, 1920 x 1080 pixel 166 PPI, Multi-touch, Corning Gorilla Glass, native pen support, AUO B133HAN04.2, a-Si TFT-LCD, WLED, 262K, 60Hz, 800:1, glossy: yes
Mainboard
Intel Kaby Lake-U Premium PCH
Storage
SanDisk SD8SN8U256G1002, 256 GB 
, 190 GB free
Soundcard
Realtek High Definition Audio
Connections
2 USB 3.0 / 3.1 Gen1, Audio Connections: dual speaker Asus SonicMaster Premium, Brightness Sensor
Networking
Intel Dual Band Wireless-AC 8260 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5), Bluetooth 4.1
Size
height x width x depth (in mm): 10.9 x 313 x 218 ( = 0.43 x 12.32 x 8.58 in)
Battery
39 Wh Lithium-Polymer, Battery runtime (according to manufacturer): 11.5 h
Operating System
Microsoft Windows 10 Home 64 Bit
Camera
Webcam: VGA
Additional features
Speakers: Surround-Sound Effects, Harman Kardon-certified, Keyboard: Chiclet, Full-size backlit, Keyboard Light: yes, Power Supply, Active Pen, Asus Sleeve , ASUS Splendid, ASUS Eye Care, ASUS Tru2life Video, ASUS AudioWizard, 24 Months Warranty
Weight
1.101 kg ( = 38.84 oz / 2.43 pounds), Power Supply: 188 g ( = 6.63 oz / 0.41 pounds)
Price
1399 EUR
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Case

The case of the Asus ZenBook Flip S UX370UA is made entirely of aluminum and is available in Royal Blue or Smoky Grey. Certain elements and edges of the blue model are highlighted with a strong gold while the gray case appears to be a little more modest. Overall, the aluminum case is stable, but the base can be warped a little. The center of the keyboard also gives way a little under pressure. The display cover, on the other hand, seems to be a lot more stable and hardly warps at all. It compensates pressure very well and no waves appear on screen. The two 360-degree hinges keep the display in position and in tablet mode, the display is additionally held in place by a magnet. The device looks very slim, has a very good build and the color combination of blue and gold is quite impressive.

Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S
Asus ZenBook Flip S

Size Comparison

Although the Asus ZenBook Flip S UX370UA has the largest footprint compared to the other devices, the device still only weighs 1.1 kg (~24.3 lb). Only the Microsoft Surface Pro 2017 can keep up with this. Our convertible is a little thicker than the Samsung Galaxy Book 12 at 10.9 mm (~0.42 in), but the Asus ZenBook Flip S UX370UA still looks very slim.

313 mm / 12.3 inch 218 mm / 8.58 inch 10.9 mm / 0.4291 inch 1.1 kg2.43 lbs304.8 mm / 12 inch 210 mm / 8.27 inch 18.45 mm / 0.726 inch 1.3 kg2.95 lbs299 mm / 11.8 inch 209 mm / 8.23 inch 18.8 mm / 0.74 inch 1.2 kg2.65 lbs292 mm / 11.5 inch 210 mm / 8.27 inch 8.9 mm / 0.3504 inch 1.2 kg2.54 lbs292.1 mm / 11.5 inch 201.4 mm / 7.93 inch 8.5 mm / 0.3346 inch 1.1 kg2.38 lbs291.3 mm / 11.5 inch 199.8 mm / 7.87 inch 7.4 mm / 0.2913 inch 1.2 kg2.6 lbs

Connectivity

Due to its very slim build, the Asus ZenBook Flip S UX370UA can only offer us two USB 3.1 Type-C ports, which are positioned towards the back, one at each side of the device. There is also a 3.5 mm audio jack on the left side. Asus has not given the ZenBook Flip S a lot more than that. If you would like to connect further external devices, you will have to resort to a docking station or adapters. We tested a USB-to-RJ45 adapter as well as an HDMI adapter, which both worked very well.

left: USB 3.1, combined headphone/microphone jack, status LED, ventilation slots
left: USB 3.1, combined headphone/microphone jack, status LED, ventilation slots
right: power button, volume rocker, status LED, fingerprint sensor, USB 3.1
right: power button, volume rocker, status LED, fingerprint sensor, USB 3.1
front: no ports
front: no ports
back: no ports
back: no ports

Communication

In the Asus ZenBook Flip S Ux370UA, the most important data transfer possibility is the Wi-Fi connection. This is taken care of by the Intel Dual Band Wireless-AC 8260 module, which also offers Bluetooth 4.1. The speeds we measured are quite satisfactory, although competition does slightly better downstream. But the Asus ZenBook Flip S UX370UA has decent speeds at 671 MBit/s and 518 MBit/s. There were no interruptions or other problems during testing.

Networking
iperf3 Client (receive) TCP 1 m 4M x10
Fujitsu Lifebook P727
Intel Dual Band Wireless-AC 8265
653 MBit/s ∼100% +26%
Samsung Galaxy Book 12 SM-W728
Atheros/Qualcomm QCA6174
606 MBit/s ∼93% +17%
Dell Latitude 5289
Intel Dual Band Wireless-AC 8265
579 MBit/s ∼89% +12%
Microsoft Surface Pro (2017) i5
Marvell AVASTAR Wireless-AC Network Controller
577 MBit/s ∼88% +11%
Asus ZenBook Flip S UX370
Intel Dual Band Wireless-AC 8260
518 MBit/s ∼79%
Lenovo Ideapad Miix 720-12IKB
Tri-Band Wireless-AC 18260
513 MBit/s ∼79% -1%
iperf3 Client (transmit) TCP 1 m 4M x10
Asus ZenBook Flip S UX370
Intel Dual Band Wireless-AC 8260
671 MBit/s ∼100%
Samsung Galaxy Book 12 SM-W728
Atheros/Qualcomm QCA6174
668 MBit/s ∼100% 0%
Lenovo Ideapad Miix 720-12IKB
Tri-Band Wireless-AC 18260
662 MBit/s ∼99% -1%
Microsoft Surface Pro (2017) i5
Marvell AVASTAR Wireless-AC Network Controller
618 MBit/s ∼92% -8%
Fujitsu Lifebook P727
Intel Dual Band Wireless-AC 8265
514 MBit/s ∼77% -23%
Dell Latitude 5289
Intel Dual Band Wireless-AC 8265
502 MBit/s ∼75% -25%

Security

The issue of security has not been forgotten and so the Asus ZenBook Flip S UX370UA is equipped with a Trusted Platform Module (TPM 2.0) as well as a fingerprint scanner. This is easy to set up for logging-in via Windows Hello.

Accessories

Asus Universal Dock
Asus Universal Dock

The scope of delivery of our device includes a suitable power supply as well as an input pen. Asus also supplies buyers with a laptop sleeve that protects the device during transport. Buyers have the option of buying a Universal Dock, which unites all important ports and lets you expand the meagre port selection as necessary. 

Maintenance

Maintenance work is limited on the Asus ZenBook Flip S UX370UA as most components are not removable due to its slim, compact build. The bottom cover of the base unit can be removed to change the storage device or clean the cooling fan, but we would recommend using specific tools for opening the back, in order to avoid damage to the case. As our test unit was on loan, we have not tried to open the device. There are various instructions on how to open the Asus ZenBook Flip S UX370UA on the internet.

Warranty

The basic warranty is 24 months and includes Pick-Up & Return service. Please see our Guarantees, Return Policies & Warranties FAQ for country-specific information.

Input Devices

Keyboard

the keyboard of the Asus ZenBook Flip S
the keyboard of the Asus ZenBook Flip S
the keyboard of the Asus ZenBook Flip S (backlit)
the keyboard of the Asus ZenBook Flip S (backlit)

The 6-row keyboard fits perfectly to the optical appearance of the device. The keys are set into the device and are flush with the wrist rest. This means that they are protected when the device is used in tablet and presentation mode. The print is easy to read and also fits into the general color concept. The keyboard also has three-level backlighting, which is useful in dark surroundings. The keys themselves are rather large at 17 x 17 mm (~0.67 in) with narrow gaps of 2 mm (~0.08 in). They have short travel, but the pressure point could be a bit stronger. Typing is not too loud - only the space bar is more audible during fast typing. 

Touchpad

The touchpad also fits to the appearance of the device and offers sufficient space at 11.4 x 7.2 cm (~4.5 x ~2.8 in). The surface is covered with glass, which enables good gliding. This means that it is easy to navigate quickly and smoothly and reception is good even in the corners. The bottom area of the ClickPad is optically separated by a golden line. This helps visualize the left and right "mouse" key. In order to make sure that right clicks are registered properly, you need to click on the lower third of the touchpad. Left clicks are registered almost on the entire surface and clicks are clearly audible. The touchpad is made very well and there is no wobbling or rattling. 

Touchscreen

The 13.3-inch screen of the Asus ZenBook Flip S UX370UA also works as an input device. The Asus Pen can be used to let creativity flow or simply to take quick notes. The combination of touchscreen and Active Pen worked very well in our test. The device responded quickly to inputs and there were no limitations at the edges of the screen.

the touchscreen of the Asus ZenBook Flip S
the touchscreen of the Asus ZenBook Flip S
the touchpad of the Asus ZenBook Flip S
the touchpad of the Asus ZenBook Flip S

Display

Subpixel
Subpixel
minimal "clouding" in the top right corner
minimal "clouding" in the top right corner

Our test unit is equipped with an IPS panel from AU Optronics. It has a resolution of 1920x1080 pixels and a diagonal of 13.3 inches. This results in a pixel density of 166 PPI. The touchscreen is protected from scratches by Corning Gorilla glass. As an alternative, Asus also offers this device with a 4K panel.

During our measurements, the display reached an average brightness of 321 cd/m². This result puts the Asus ZenBook Flip S UX370UA on the same level as the Dell Latitude 5289 (320 cd/m²). Our test unit does offer the brightest displays among our comparison devices. Competing devices from Microsoft, Lenovo and Samsung offer better results. Brightness distribution is not perfect either at 86%, but there is only minimal clouding visible on an all-black screen. We did not measure any PWM for regulating display brightness on the Asus ZenBook Flip S.

323
cd/m²
325
cd/m²
317
cd/m²
307
cd/m²
334
cd/m²
318
cd/m²
300
cd/m²
347
cd/m²
322
cd/m²
Distribution of brightness
AUO B133HAN04.2
X-Rite i1Pro 2
Maximum: 347 cd/m² Average: 321.4 cd/m²
Brightness Distribution: 86 %
Center on Battery: 289 cd/m²
Contrast: 1336:1 (Black: 0.25 cd/m²)
ΔE Color 4.24 | 0.6-29.43 Ø6
ΔE Greyscale 3.92 | 0.64-98 Ø6.2
90% sRGB (Argyll 3D) 58% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.68
Asus ZenBook Flip S UX370
AUO B133HAN04.2, , 1920x1080, 13.3
Samsung Galaxy Book 12 SM-W728
Samsung SDCA029, , 2160x1440, 12
Microsoft Surface Pro (2017) i5
LG Display LP123WQ112604, , 2736x1824, 12.3
Fujitsu Lifebook P727
LP125WF4-SPH1, , 1920x1080, 12.5
Lenovo Ideapad Miix 720-12IKB
AUO B120YAN01 / AUO106F, , 2880x1920, 12
Dell Latitude 5289
BOE NV12N51, , 1920x1080, 12.5
Response Times
61%
3%
5%
8%
-1%
Response Time Grey 50% / Grey 80% *
44 (22, 22)
4 (2, 2)
91%
42 (20, 22)
5%
44 (26, 18)
-0%
45 (22, 23)
-2%
42 (22, 20)
5%
Response Time Black / White *
29 (18, 11)
20 (18, 2)
31%
29 (18, 11)
-0%
26 (14, 12)
10%
24 (14, 10)
17%
31 (18, 13)
-7%
PWM Frequency
250 (100)
21000
531 (90)
Screen
100%
11%
-18%
-13%
-7%
Brightness middle
334
376
13%
417
25%
303
-9%
406
22%
336
1%
Brightness
321
378
18%
401
25%
272
-15%
396
23%
320
0%
Brightness Distribution
86
91
6%
88
2%
79
-8%
88
2%
90
5%
Black Level *
0.25
0.03
88%
0.29
-16%
0.46
-84%
0.3
-20%
0.34
-36%
Contrast
1336
12533
838%
1438
8%
659
-51%
1353
1%
988
-26%
Colorchecker DeltaE2000 *
4.24
4.1
3%
3.63
14%
3.94
7%
5.28
-25%
3.45
19%
Colorchecker DeltaE2000 max. *
6.03
6.45
-7%
6.74
-12%
6.57
-9%
9.83
-63%
7.95
-32%
Greyscale DeltaE2000 *
3.92
3.64
7%
2.18
44%
5.14
-31%
6.71
-71%
1.68
57%
Gamma
2.68 82%
2.58 85%
3.09 71%
2.31 95%
2.29 96%
2.49 88%
CCT
6758 96%
7113 91%
6767 96%
6521 100%
6532 100%
6782 96%
Color Space (Percent of AdobeRGB 1998)
58
74
28%
63
9%
63
9%
59
2%
41
-29%
Color Space (Percent of sRGB)
90
93
3%
99
10%
98
9%
91
1%
64
-29%
Total Average (Program / Settings)
81% / 93%
7% / 10%
-7% / -14%
-3% / -9%
-4% / -6%

* ... smaller is better

ZenBook Flip S vs. sRGB (90%)
ZenBook Flip S vs. sRGB (90%)
ZenBook Flip S vs. AdobeRGB (58%)
ZenBook Flip S vs. AdobeRGB (58%)

The display quality can be said to be very good. The low black value (0.25), combined with the measured brightness, means that the screen has a good contrast ratio (1336:1). The colors appear vivid, which can also be due to the glossy screen. Ex-works, the average DeltaE-2000 deviation to the sRGB color space is 4.24 (ColorChecker) respectively 3.92 (gray scales). You can also see a light blue cast, which is typical for an IPS screen. Calibrating can reduce these issues quite well. As usual, the suitable ICC profile is available for download (above the comparison table).

The display covers 90% of the sRGB color space and 58% of the AdobeRGB color space. This means that the Asus ZenBook Flip S UX370UA is quite suitable for semi-professional image processing.

CalMAN: gray scales
CalMAN: gray scales
CalMAN: color saturation
CalMAN: color saturation
CalMAN: ColorChecker
CalMAN: ColorChecker

The Corning-Gorilla glass surface of the display is prone to reflections, which limits the devices outdoor usage. Nonetheless, it is theoretically possible, especially if you keep to the shade.

The Asus ZenBook Flip S in the sun
The Asus ZenBook Flip S in the sun ...
the Asus ZenBook Flip S in shade
... and in shade

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
29 ms ... rise ↗ and fall ↘ combined↗ 18 ms rise
↘ 11 ms fall
The screen shows relatively slow response rates in our tests and may be too slow for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 68 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (24.9 ms).
       Response Time 50% Grey to 80% Grey
44 ms ... rise ↗ and fall ↘ combined↗ 22 ms rise
↘ 22 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 65 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (39.6 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 not detected

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9249 (minimum: 43 - maximum: 142900) Hz was measured.

The viewing angle can be considered typical for an IPS screen. There were only minor problems in the four corner images, where you can see a light veil. The screen is easy to read from all other viewing angles.

the viewing angles of the Asus ZenBook Flip S
the viewing angles of the Asus ZenBook Flip S

Performance

The Asus ZenBook Flip S UX370UA is equipped with a Kaby Lake CPU and has a minimum of 8 GB of RAM. The Intel Core i5-7200U, which our test unit is equipped with, is the "smallest" model available. Alternatively, the Asus ZenBook Flip S UX370UA is also available with the slightly faster Intel Core i7-7500U. Both devices have to make do with the integrated graphics unit Intel HD Graphics 620 - they do not have dedicated graphics. But this is not necessary for the device's intended areas of use; for this, the performance of the widespread compact SoC is entirely sufficient. The storage device is a speedy SSD, which ensures a smoothly running system.

CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
GPU-Z
GPU-Z
HWiNFO
DPC-Latencies
Intel Extreme Utility
Intel Extreme Utility (Benchmark)
 

Processor

By now, a lot of devices have been equipped with the Intel Core i5-7200U. It is a dual-core processor that supports Hyperthreading, which means that the device can multi-task very well. The base clock rate is 2.5 GHz, which can increase to 3.1 GHz under load. The processor appears to not quite reach its full potential during our test, which indicates that there could be a thermal limit that restricts performance under constant load. The Samsung Galaxy Book 12 is also based on the Intel Core i5-7200U and has slightly better results for Multithread performance (6%).

You can find further benchmarks for the Intel Core i5-7200U here.

We run the Cinebench R15 Multi loop in order to test CPU performance under constant load. At the beginning, the Intel Core i5-7200U was able to score 302 points. But due to the constant heat development, the result dropped with every run and eventually settled at around 260 points. This means that the processor performance decreased by 14% during our test.

0102030405060708090100110120130140150160170180190200210220230240250260270280290300310Tooltip
Cinebench R15 CPU Multi 64 Bit
Cinebench R15
CPU Single 64Bit
Fujitsu Lifebook P727
Intel Core i7-7600U
153 Points ∼100% +20%
Dell Latitude 5289
Intel Core i5-7300U
145 Points ∼95% +14%
Microsoft Surface Pro (2017) i5
Intel Core i5-7300U
141 Points ∼92% +11%
Lenovo Ideapad Miix 720-12IKB
Intel Core i7-7500U
130 Points ∼85% +2%
Samsung Galaxy Book 12 SM-W728
Intel Core i5-7200U
127 Points ∼83% 0%
Asus ZenBook Flip S UX370
Intel Core i5-7200U
127 Points ∼83%
CPU Multi 64Bit
Dell Latitude 5289
Intel Core i5-7300U
340 Points ∼100% +13%
Microsoft Surface Pro (2017) i5
Intel Core i5-7300U
334 Points ∼98% +11%
Fujitsu Lifebook P727
Intel Core i7-7600U
324 Points ∼95% +7%
Samsung Galaxy Book 12 SM-W728
Intel Core i5-7200U
321 Points ∼94% +6%
Asus ZenBook Flip S UX370
Intel Core i5-7200U
302 Points ∼89%
Lenovo Ideapad Miix 720-12IKB
Intel Core i7-7500U
265 Points ∼78% -12%
Cinebench R11.5
CPU Single 64Bit
Asus ZenBook Flip S UX370
Intel Core i5-7200U
1.45 Points ∼100%
CPU Multi 64Bit
Asus ZenBook Flip S UX370
Intel Core i5-7200U
3.3 Points ∼100%
JetStream 1.1 - Total Score
Microsoft Surface Pro (2017) i5
Intel Core i5-7300U
219 Points ∼100% +5%
Asus ZenBook Flip S UX370
Intel Core i5-7200U
208.47 Points ∼95%
Fujitsu Lifebook P727
Intel Core i7-7600U
195.54 Points ∼89% -6%
Lenovo Ideapad Miix 720-12IKB
Intel Core i7-7500U
178.8 Points ∼82% -14%
Dell Latitude 5289
Intel Core i5-7300U
173.44 Points ∼79% -17%
Octane V2 - Total Score
Microsoft Surface Pro (2017) i5
Intel Core i5-7300U
33186 Points ∼100% +13%
Dell Latitude 5289
Intel Core i5-7300U
32474 Points ∼98% +11%
Lenovo Ideapad Miix 720-12IKB
Intel Core i7-7500U
30994 Points ∼93% +6%
Asus ZenBook Flip S UX370
Intel Core i5-7200U
29282 Points ∼88%
Fujitsu Lifebook P727
Intel Core i7-7600U
24529 Points ∼74% -16%
Mozilla Kraken 1.1 - Total Score
Dell Latitude 5289
Intel Core i5-7300U
1278.5 ms * ∼100% -5%
Fujitsu Lifebook P727
Intel Core i7-7600U
1257.7 ms * ∼98% -3%
Asus ZenBook Flip S UX370
Intel Core i5-7200U
1221 ms * ∼96%
Lenovo Ideapad Miix 720-12IKB
Intel Core i7-7500U
1082 ms * ∼85% +11%

* ... smaller is better

Cinebench R10
Cinebench R10
Cinebench R11.5
Cinebench R11.5
Cinebench R15
Cinebench R15
Jetstream 1.1
Jetstream 1.1
Octane V2
Octane V2
Mozilla Kraken 1.1
Mozilla Kraken 1.1
Cinebench R10 Shading 32Bit
7143
Cinebench R10 Rendering Multiple CPUs 32Bit
10626
Cinebench R10 Rendering Single 32Bit
4950
Cinebench R10 Shading 64Bit
7552 Points
Cinebench R10 Rendering Multiple CPUs 64Bit
13479 Points
Cinebench R10 Rendering Single CPUs 64Bit
6415 Points
Cinebench R11.5 CPU Multi 64Bit
3.3 Points
Cinebench R11.5 OpenGL 64Bit
36.62 fps
Cinebench R11.5 CPU Single 64Bit
1.45 Points
Cinebench R15 CPU Multi 64Bit
302 Points
Cinebench R15 CPU Single 64Bit
127 Points
Cinebench R15 Ref. Match 64Bit
97.8 %
Cinebench R15 OpenGL 64Bit
46.41 fps
Help

System Performance

After the rather disillusioning CPU performance, the Asus ZenBook Flip S UX370UA manages slightly better results during the Cinebench R15 benchmark. The supposedly faster systems such as the Microsoft Surface Pro or the Lenovo IdeaPad Miix lagged behind by 10 to 20% during the PCMark 8. Once again, the Asus ZenBook Flip S beat the Microsoft Surface Pro in the PCMark 10.

Subjectively, the Asus ZenBook Flip S UX370UA runs very smoothly. The system is quick to boot and ready to go in an instant. 

PCMark 8 Home
PCMark 8 Home
PCMark 8 Creative
PCMark 8 Creative
PCMark 8 Work
PCMark 8 Work
PCMark 8 Storage
PCMark 8 Storage
PCMark 10
PCMark 10
PCMark 8
Work Score Accelerated v2
Fujitsu Lifebook P727
HD Graphics 620, 7600U, Samsung CM871A MZNTN512HDJH
4932 Points ∼100% +8%
Dell Latitude 5289
HD Graphics 620, 7300U, SanDisk X400 256GB, SATA (SD8SB8U-256G)
4681 Points ∼95% +3%
Asus ZenBook Flip S UX370
HD Graphics 620, 7200U, SanDisk SD8SN8U256G1002
4559 Points ∼92%
Samsung Galaxy Book 12 SM-W728
HD Graphics 620, 7200U, Samsung SSD PM871a MZNLN256HMHQ
4291 Points ∼87% -6%
Lenovo Ideapad Miix 720-12IKB
HD Graphics 620, 7500U, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
4216 Points ∼85% -8%
Microsoft Surface Pro (2017) i5
HD Graphics 620, 7300U, Samsung PM971 KUS030202M
3983 Points ∼81% -13%
Home Score Accelerated v2
Fujitsu Lifebook P727
HD Graphics 620, 7600U, Samsung CM871A MZNTN512HDJH
3714 Points ∼100% +5%
Dell Latitude 5289
HD Graphics 620, 7300U, SanDisk X400 256GB, SATA (SD8SB8U-256G)
3554 Points ∼96% +1%
Samsung Galaxy Book 12 SM-W728
HD Graphics 620, 7200U, Samsung SSD PM871a MZNLN256HMHQ
3538 Points ∼95% 0%
Asus ZenBook Flip S UX370
HD Graphics 620, 7200U, SanDisk SD8SN8U256G1002
3521 Points ∼95%
Lenovo Ideapad Miix 720-12IKB
HD Graphics 620, 7500U, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
3186 Points ∼86% -10%
Microsoft Surface Pro (2017) i5
HD Graphics 620, 7300U, Samsung PM971 KUS030202M
2936 Points ∼79% -17%
PCMark 10
Productivity
Asus ZenBook Flip S UX370
HD Graphics 620, 7200U, SanDisk SD8SN8U256G1002
5541 Points ∼100%
Microsoft Surface Pro (2017) i5
HD Graphics 620, 7300U, Samsung PM971 KUS030202M
5009 Points ∼90% -10%
Score
Asus ZenBook Flip S UX370
HD Graphics 620, 7200U, SanDisk SD8SN8U256G1002
3125 Points ∼100%
Microsoft Surface Pro (2017) i5
HD Graphics 620, 7300U, Samsung PM971 KUS030202M
2957 Points ∼95% -5%
PCMark 8 Home Score Accelerated v2
3521 points
PCMark 8 Creative Score Accelerated v2
4364 points
PCMark 8 Work Score Accelerated v2
4559 points
Help

Storage Device

Asus has equipped our test unit with an SSD from SanDisk, which has a capacity of 256 GB and runs at SATA speeds. We measured a sequential read rate of 476 MB/s as well as a sequential write rate of 454 MB/s. But the 4K rate is a lot more important for launching programs and the operating system. Here, the SanDisk SSD reached a satisfying result at 27 MB/s (AS SSD) and 33 MB/S (CrystalDiskMark 3). The M.2 interface also supports SSDs with PCIe speeds. The 1 TB model has a PCIe 3.0 x4 interface, while the smaller storage options (256 and 512 GB) merely work at SATA3 speeds.

AS SSD
AS SSD
CrystalDiskMark 3.0
CrystalDiskMark 3.0
CrystalDiskMark 5.2
CrystalDiskMark 5.2
CrystalDiskInfo
CrystalDiskInfo
Asus ZenBook Flip S UX370
SanDisk SD8SN8U256G1002
Samsung Galaxy Book 12 SM-W728
Samsung SSD PM871a MZNLN256HMHQ
Microsoft Surface Pro (2017) i5
Samsung PM971 KUS030202M
Fujitsu Lifebook P727
Samsung CM871A MZNTN512HDJH
Lenovo Ideapad Miix 720-12IKB
Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
Dell Latitude 5289
SanDisk X400 256GB, SATA (SD8SB8U-256G)
CrystalDiskMark 3.0
28%
60%
25%
227%
-18%
Write 4k QD32
170.8
260.7
53%
373
118%
254.2
49%
420.8
146%
158.8
-7%
Read 4k QD32
385.4
289.1
-25%
423
10%
337.1
-13%
504.1
31%
306.2
-21%
Write 4k
57.01
91.93
61%
125
119%
89.85
58%
162.2
185%
27.92
-51%
Read 4k
29.7
40.46
36%
46
55%
38.74
30%
53.62
81%
22.73
-23%
Write 512
291.5
395.4
36%
445
53%
399.1
37%
1288
342%
255.6
-12%
Read 512
315.7
443.7
41%
225
-29%
379.8
20%
1301
312%
260.8
-17%
Write Seq
432.5
473.7
10%
853
97%
467.7
8%
1702
294%
406.4
-6%
Read Seq
455.9
511.1
12%
723
59%
513.4
13%
2408
428%
423.7
-7%
SanDisk SD8SN8U256G1002
Sequential Read: 455.9 MB/s
Sequential Write: 432.5 MB/s
512K Read: 315.7 MB/s
512K Write: 291.5 MB/s
4K Read: 29.7 MB/s
4K Write: 57.01 MB/s
4K QD32 Read: 385.4 MB/s
4K QD32 Write: 170.8 MB/s

Graphics

The Intel HD Graphics 620 is responsible for handling graphics. It has a base clock rate of 1000 MHz and the graphics unit also benefits from the working memory, which works in Dual Channel Mode. This means that the Intel HD Graphics 620 can reach its full potential. The 3D performance of the graphics unit in our Asus ZenBook Flip S UX370UA is quite respectable. Our test unit is at the top of the comparison table together with the Dell Latitude 5289.

You can find further benchmarks for the Intel HD Graphics 620 here

 

 

3DMark
1920x1080 Fire Strike Graphics
Dell Latitude 5289
Intel HD Graphics 620, Intel Core i5-7300U
1081 Points ∼100% +2%
Asus ZenBook Flip S UX370
Intel HD Graphics 620, Intel Core i5-7200U
1058 Points ∼98%
Samsung Galaxy Book 12 SM-W728
Intel HD Graphics 620, Intel Core i5-7200U
971 Points ∼90% -8%
Microsoft Surface Pro (2017) i5
Intel HD Graphics 620, Intel Core i5-7300U
889 Points ∼82% -16%
Fujitsu Lifebook P727
Intel HD Graphics 620, Intel Core i7-7600U
860 Points ∼80% -19%
1280x720 Cloud Gate Standard Graphics
Asus ZenBook Flip S UX370
Intel HD Graphics 620, Intel Core i5-7200U
8893 Points ∼100%
Dell Latitude 5289
Intel HD Graphics 620, Intel Core i5-7300U
8562 Points ∼96% -4%
Samsung Galaxy Book 12 SM-W728
Intel HD Graphics 620, Intel Core i5-7200U
7776 Points ∼87% -13%
Lenovo Ideapad Miix 720-12IKB
Intel HD Graphics 620, Intel Core i7-7500U
7270 Points ∼82% -18%
Microsoft Surface Pro (2017) i5
Intel HD Graphics 620, Intel Core i5-7300U
7265 Points ∼82% -18%
Fujitsu Lifebook P727
Intel HD Graphics 620, Intel Core i7-7600U
7237 Points ∼81% -19%
3DMark 11 - 1280x720 Performance GPU
Dell Latitude 5289
Intel HD Graphics 620, Intel Core i5-7300U
1627 Points ∼100% +2%
Asus ZenBook Flip S UX370
Intel HD Graphics 620, Intel Core i5-7200U
1589 Points ∼98%
Samsung Galaxy Book 12 SM-W728
Intel HD Graphics 620, Intel Core i5-7200U
1533 Points ∼94% -4%
Fujitsu Lifebook P727
Intel HD Graphics 620, Intel Core i7-7600U
1476 Points ∼91% -7%
Lenovo Ideapad Miix 720-12IKB
Intel HD Graphics 620, Intel Core i7-7500U
1416 Points ∼87% -11%
3DMark Ice Storm
3DMark Ice Storm
3DMark Ice Storm Unlimited
3DMark Ice Storm Unlimited
3DMark Ice Storm Extreme
3DMark Ice Storm Extreme
3DMark Cloud Gate
3DMark Cloud Gate
3DMark Sky Diver
3DMark Sky Diver
3DMark Fire Strike
3DMark Fire Strike
3DMark Fire Strike Extreme
3DMark Fire Strike Extreme
3DMark Fire Strike Ultra
3DMark Fire Strike Ultra
3DMark Time Spy
3DMark Time Spy
3DMark 11
3DMark 11
3DMark 11 Performance
1743 points
3DMark Ice Storm Standard Score
66764 points
3DMark Cloud Gate Standard Score
6475 points
3DMark Fire Strike Score
963 points
3DMark Fire Strike Extreme Score
435 points
3DMark Time Spy Score
380 points
Help

Gaming Performance

Although the 3D performance of the Asus ZenBook Flip S UX370UA is a lot better in the synthetic benchmarks than its competition, you cannot expect too much from it. More demanding 3D games cannot be played smoothly on the convertible. But the Intel HD Graphics 620 should be sufficient for less graphically demanding games, like the ones you can find in the Windows Store.

low med. high ultra
BioShock Infinite (2013) 57.7 31.4 26.3 8.15 fps
Battlefield 4 (2013) 41.2 27.9 18.4 6.3 fps
Rise of the Tomb Raider (2016) 20.8 12.3 7.1 4.6 fps

Emissions

System Noise

System Noise Characteristics
System Noise Characteristics

The Asus ZenBook Flip S UX370UA has an active cooling unit, which transports the produced heat out of the device through the ventilation slots on the left side of the device. This cooling fan does not start running until the device is under a certain load. While idling, the fan remains still and the device works silently. The maximum noise we measured was 34.2 dB(A), which still was not bothersome. Our device is averagely loud compared to its competitors.

Noise Level

Idle
30.5 / 30.5 / 30.5 dB(A)
Load
34.2 / 32.5 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm distance)   environment noise: 30.5 dB(A)
Asus ZenBook Flip S UX370
HD Graphics 620, 7200U, SanDisk SD8SN8U256G1002
Samsung Galaxy Book 12 SM-W728
HD Graphics 620, 7200U, Samsung SSD PM871a MZNLN256HMHQ
Microsoft Surface Pro (2017) i5
HD Graphics 620, 7300U, Samsung PM971 KUS030202M
Fujitsu Lifebook P727
HD Graphics 620, 7600U, Samsung CM871A MZNTN512HDJH
Lenovo Ideapad Miix 720-12IKB
HD Graphics 620, 7500U, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
Dell Latitude 5289
HD Graphics 620, 7300U, SanDisk X400 256GB, SATA (SD8SB8U-256G)
Noise
3%
4%
-5%
-2%
off / environment *
30.5
30.3
1%
30
2%
30.4
-0%
30.5
-0%
Idle Minimum *
30.5
30
2%
30.4
-0%
30.5
-0%
Idle Average *
30.5
30.3
1%
30
2%
32.4
-6%
30.5
-0%
Idle Maximum *
30.5
30
2%
32.4
-6%
30.5
-0%
Load Average *
34.2
31.7
7%
30.8
10%
36
-5%
36
-5%
Load Maximum *
32.5
31.7
2%
30.8
5%
36.3
-12%
34.6
-6%

* ... smaller is better

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2035.631.135.6253230.5323138.835.138.84032.630.632.65031.229.131.26330.226.930.28027.226.927.210027.625.927.612526.124.326.116024.523.624.520023.82323.825022.621.622.631521.720.821.740026.720.426.750021.519.621.563021.418.521.48002218.322100021.71821.7125022.517.822.5160025.117.325.120002717.827250030.917.830.9315032.317.832.340002818.22850002718.327630023.218.223.2800020.618.620.61000019.918.719.91250019.718.819.71600019.31919.3SPL3930.539N2.81.42.8median 23.2median 18.6median 23.2Delta2.61.82.6hearing rangehide median Fan NoiseAsus ZenBook Flip S UX370

Temperature

3DMark 11 after the stress test
3DMark 11 after the stress test

The active cooling system transports heat out of the case quite well, which means that the latter does not heat up excessively. We measured a hot spot of 41.5 °C (~106.7 °F) max on the bottom of the base unit. The Samsung Galaxy Book 12 had significantly higher temperatures at 56.3 °C (~133 °F). 

The processor heated up to a maximum 67 °C (~152.6 °F) during our stress test with "Prime95". At first it clocked at the maximum frequency of 3.1 GHz, but it took only a few seconds for the processor to start throttling and the clock rate eventually settled at around 1.8 GHz. This is significantly below the base clock rate of 2.5 GHz. We noticed that after the processor heated up to over 60 °C (~140 °F), the system began to throttle. The Asus ZenBook Flip S UX370UA managed only 1330 points during a second run of the 3DMark 11 right after the stress test. This is a loss of about 400 points compared to a cold start.

stress test: Prime95 only
stress test: Prime95 only
stress test: FurMark only
stress test: FurMark only
stress test: FurMark + Prime95
stress test: FurMark + Prime95
heat map idle: top
heat map idle: top
heat map idle: bottom
heat map idle: bottom
heat map load: top
heat map load: top
heat map load: bottom
heat map load: bottom
Max. Load
 39.5 °C
103 F
36.2 °C
97 F
26.4 °C
80 F
 
 38 °C
100 F
35.2 °C
95 F
25.7 °C
78 F
 
 30.5 °C
87 F
27.2 °C
81 F
25.8 °C
78 F
 
Maximum: 39.5 °C = 103 F
Average: 31.6 °C = 89 F
26.1 °C
79 F
33.9 °C
93 F
41.5 °C
107 F
25.7 °C
78 F
31.3 °C
88 F
39.1 °C
102 F
25.9 °C
79 F
28 °C
82 F
32.7 °C
91 F
Maximum: 41.5 °C = 107 F
Average: 31.6 °C = 89 F
Power Supply (max.)  34.6 °C = 94 F | Room Temperature 21.3 °C = 70 F | FIRT 550-Pocket
(+) The average temperature for the upper side under maximal load is 31.6 °C / 89 F, compared to the average of 30.3 °C / 87 F for the devices in the class Convertible.
(+) The maximum temperature on the upper side is 39.5 °C / 103 F, compared to the average of 35.4 °C / 96 F, ranging from 21.8 to 55.7 °C for the class Convertible.
(±) The bottom heats up to a maximum of 41.5 °C / 107 F, compared to the average of 36.5 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 22 °C / 72 F, compared to the device average of 30.3 °C / 87 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 30.5 °C / 86.9 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 28.9 °C / 84 F (-1.6 °C / -2.9 F).
Asus ZenBook Flip S UX370
HD Graphics 620, 7200U, SanDisk SD8SN8U256G1002
Samsung Galaxy Book 12 SM-W728
HD Graphics 620, 7200U, Samsung SSD PM871a MZNLN256HMHQ
Microsoft Surface Pro (2017) i5
HD Graphics 620, 7300U, Samsung PM971 KUS030202M
Fujitsu Lifebook P727
HD Graphics 620, 7600U, Samsung CM871A MZNTN512HDJH
Lenovo Ideapad Miix 720-12IKB
HD Graphics 620, 7500U, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
Dell Latitude 5289
HD Graphics 620, 7300U, SanDisk X400 256GB, SATA (SD8SB8U-256G)
Heat
-35%
-23%
-2%
-27%
-19%
Maximum Upper Side *
39.5
52.5
-33%
39.2
1%
42.2
-7%
42
-6%
49
-24%
Maximum Bottom *
41.5
56.3
-36%
40.3
3%
43.1
-4%
43.6
-5%
44.4
-7%
Idle Upper Side *
23.1
31.4
-36%
37
-60%
22.5
3%
32.8
-42%
28.6
-24%
Idle Bottom *
23.6
32.2
-36%
32.3
-37%
23.3
1%
36.4
-54%
28.3
-20%

* ... smaller is better

Speakers

Speaker Characteristics
Speaker Characteristics

Asus has placed the speakers in the front area, below the wrist rest. The speakers come from Harman/Kardon and offer a good sound, considering their compact build. Ideally, the convertible should be placed on a hard surface, as the sound is dampened noticeably on a soft surface. As usual, mids and highs are stronger, but bass frequencies are at least present, which is often not the case. The maximum volume is more than enough at 80.1 dB(A). The speakers are also ideal for speech, so nothing should get in the way of video calls.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2031.131.42530.532.53135.135.24030.630.65029.132.86326.9298026.933.110025.939.312524.346.316023.646.82002346.125021.650.831520.855.440020.45750019.661.263018.557.680018.361.210001865.7125017.866.7160017.370.5200017.868.7250017.873.4315017.871.1400018.268.5500018.365.8630018.259.3800018.658.31000018.759.41250018.865.4160001969.9SPL30.580.1N1.442.9median 18.6median 61.2Delta1.86.736353637.428.237.435.825.435.83729.83737.928.537.940.728.940.740.429.140.440.928.940.943.528.443.545274548.723.848.75022.75056.721.956.758.320.958.358.120.558.162.219.562.264.918.464.960.818.260.860.917.860.961.21861.267.817.867.865.217.865.260.317.960.35817.95855.81855.856.71856.757.117.957.156.117.856.145.117.745.142.517.842.57430.77432.31.532.3median 57.1median 18median 57.15.92.15.9hearing rangehide median Pink NoiseAsus ZenBook Flip S UX370Microsoft Surface Pro (2017) i5
Asus ZenBook Flip S UX370 audio analysis

(±) | speaker loudness is average but good (73.4 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 13.8% lower than median
(±) | linearity of bass is average (9.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.3% away from median
(±) | linearity of mids is average (7% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.8% higher than median
(±) | linearity of highs is average (7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (17.4% difference to median)
Compared to same class
» 28% of all tested devices in this class were better, 4% similar, 68% worse
» The best had a delta of 11%, average was 22%, worst was 53%
Compared to all devices tested
» 27% of all tested devices were better, 7% similar, 67% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Microsoft Surface Pro (2017) i5 audio analysis

(-) | not very loud speakers (68 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 9.7% lower than median
(±) | linearity of bass is average (7% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.6% away from median
(+) | mids are linear (6.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.1% away from median
(+) | highs are linear (5.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (15.2% difference to median)
Compared to same class
» 11% of all tested devices in this class were better, 7% similar, 82% worse
» The best had a delta of 11%, average was 22%, worst was 53%
Compared to all devices tested
» 16% of all tested devices were better, 4% similar, 80% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Frequency diagram in comparison (checkboxes can be turned on/off!)

Energy Management

Power Consumption

The power consumption of the Asus ZenBook Flip S UX370UA is the lowest among all comparison devices. A look at the comparison table shows that only the Dell Latitude 5289 (-2%) can keep up with our test unit. While idling, our test unit contents itself with 2.6 to 8.3 watts, although we did measure a maximum consumption of 29 watts under load. We were not that happy with power consumption during standby, which was 2.2 watts. Some of our comparison devices did a better job here. The 45-watt power supply is large enough to cover the device's needs. The notebook can be charged via either of the USB Type-C ports.

Power Consumption
Off / Standbydarklight 0.68 / 2.2 Watt
Idledarkmidlight 2.6 / 5.3 / 8.5 Watt
Load midlight 29 / 27 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Asus ZenBook Flip S UX370
7200U, HD Graphics 620, SanDisk SD8SN8U256G1002, a-Si TFT-LCD, WLED, 1920x1080, 13.3
Samsung Galaxy Book 12 SM-W728
7200U, HD Graphics 620, Samsung SSD PM871a MZNLN256HMHQ, Super AMOLED, 2160x1440, 12
Microsoft Surface Pro (2017) i5
7300U, HD Graphics 620, Samsung PM971 KUS030202M, IPS, 2736x1824, 12.3
Fujitsu Lifebook P727
7600U, HD Graphics 620, Samsung CM871A MZNTN512HDJH, IPS LED, 1920x1080, 12.5
Lenovo Ideapad Miix 720-12IKB
7500U, HD Graphics 620, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0), IPS, 2880x1920, 12
Dell Latitude 5289
7300U, HD Graphics 620, SanDisk X400 256GB, SATA (SD8SB8U-256G), IPS LED, 1920x1080, 12.5
Power Consumption
-31%
-14%
-10%
-16%
-2%
Idle Minimum *
2.6
3.9
-50%
3.6
-38%
3.9
-50%
3.5
-35%
2.7
-4%
Idle Average *
5.3
9
-70%
8.1
-53%
6.6
-25%
7.2
-36%
5.1
4%
Idle Maximum *
8.5
11.9
-40%
8.7
-2%
6.9
19%
7.9
7%
7.6
11%
Load Average *
29
27.3
6%
25.5
12%
27
7%
29.6
-2%
33
-14%
Load Maximum *
27
27.9
-3%
23.5
13%
27.1
-0%
30.8
-14%
29
-7%

* ... smaller is better

Battery Runtime

3DMark 11 on battery
3DMark 11 on battery

Asus has given the ZenBook Flip S UX370UA a 39-watt Lithium-Polymer battery and claims that it has a runtime of 11.5 hours. We managed to top this while idling with 15:37 hours. Under load, the ZenBook requires recharging after just 2.5 hours. The Wi-Fi test is more practically oriented. Here, our test unit managed a runtime of 8:03 hours. The Microsoft Surface Pro and the Dell Latitude 5289 both kept going for longer, which is probably due to their larger batteries. The battery recharges fully in about 2.5 hours. The Asus ZenBook Flip S UX370UA supports "Fast Charging" and the battery should reach 60% within just 49 minutes, which we can confirm. 

We also tested the 3D performance on battery and could not notice any disadvantages. The result of the 3DMark 11 was almost identical to when it was on power supply.

Battery Runtime
Idle (without WLAN, min brightness)
15h 37min
NBC WiFi Websurfing Battery Test 1.3 (Edge 40.15063.0.0)
8h 03min
Big Buck Bunny H.264 1080p
7h 01min
Load (maximum brightness)
2h 27min
maximum battery runtime
maximum battery runtime
minimum battery runtime
minimum battery runtime
battery runtime on Wi-Fi
battery runtime on Wi-Fi
H.264 battery runtime
H.264 battery runtime
charging time
charging time
Asus ZenBook Flip S UX370
7200U, HD Graphics 620, 39 Wh
Samsung Galaxy Book 12 SM-W728
7200U, HD Graphics 620, 39 Wh
Microsoft Surface Pro (2017) i5
7300U, HD Graphics 620, 45 Wh
Fujitsu Lifebook P727
7600U, HD Graphics 620, 45 Wh
Lenovo Ideapad Miix 720-12IKB
7500U, HD Graphics 620, 41 Wh
Dell Latitude 5289
7300U, HD Graphics 620, 60 Wh
Battery Runtime
4%
27%
-5%
-26%
41%
Reader / Idle
937
1031
10%
1054
12%
941
0%
713
-24%
1728
84%
H.264
421
409
-3%
WiFi v1.3
483
744
54%
353
-27%
345
-29%
708
47%
Load
147
168
14%
164
12%
111
-24%
136
-7%

Verdict

Pros

+ stylish design
+ low weight
+ good high-contrast display
+ silent
+ large keys with backlighting
+ fast Wi-Fi connection
+ fingerprint scanner
+ Asus Sleeve and Active Pen included

Cons

- Base could be more stable
- CPU cannot keep up full potential for long
- no memory card slot
- reflective display
Reviewed: The Asus ZenBook Flip S UX370UA, test unit provided by Campuspoint.
Reviewed: The Asus ZenBook Flip S UX370UA, test unit provided by Campuspoint.

The Asus ZenBook Flip S UX370UA is a smart convertible that can score several points with its high-quality choice of material. Inside, however, not much is new. The Intel Core i5-7200U has become rather old by now and the next generation is waiting in the wings. Nonetheless, the Kaby-Lake SoC can handle our tests quite well, although the conservative temperature target does limit the processor performance quite a bit. In the US, the Asus ZenBook Flip S UX370UA is available for $1400 in the configuration with 16 GB of RAM, the Intel i7 processor and a 512 GB SSD. For this price, buyers will get a perfectly built convertible, which is a real looker in the blue and gold color combination. 

The Asus ZenBook Flip S UX 370UA has a perfect build and is a good travelling companion due to its light weight. Prolific writers will be happy to hear about the good keyboard.

One disadvantage, however, is the rather small cooling system, which makes the processor lose 14% of its possible performance under constant load. It is also a shame that the device is not equipped with a memory card slot, which would be a great alternative for data transfer and also work as storage expansion. The display gave us ambiguous signs. The reflective surface can be annoying in bright surroundings, but on the other hand, the good color space coverage makes it usable for semi-professional image processing. All in all, we can say that the Asus ZenBook Flip S UX370UA can definitely keep up with its competition in the tested configuration. But as always, you will have to decide for yourself which device is best for you.

Asus ZenBook Flip S UX370 - 10/03/2017 v6(old)
Sebastian Bade

Chassis
88 / 98 → 90%
Keyboard
83%
Pointing Device
93%
Connectivity
48 / 80 → 61%
Weight
74 / 35-78 → 90%
Battery
90%
Display
87%
Games Performance
57 / 68 → 84%
Application Performance
82 / 87 → 94%
Temperature
94%
Noise
93%
Audio
52 / 91 → 57%
Camera
46 / 85 → 54%
Average
76%
87%
Convertible - Weighted Average

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> Notebook / Laptop Reviews and News > Reviews > Asus ZenBook Flip S UX370UA (i5, 256 GB, FHD) Convertible Review
Sebastian Bade, 2017-10- 6 (Update: 2019-03-31)