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Teclast F7 Air Laptop Review

Gemini Lake with killer looks. The Teclast F7 Air is a sleek and well-crafted laptop that is sure to turn heads. However, the low-powered processor, mediocre keyboard, and lackluster trackpad leave room for improvement.

Teclast is one of many Chinese manufacturers with a large selection of nice looking and cost-efficient laptops and tablets. The 14-inch F7 Air fits right into that description with a thin profile, a well-crafted aluminum body, and a premium style. However, like most inexpensive Chinese laptops, the F7 Air offers little in the way of raw performance.

If the F7 Air looks familiar, it is because it bears a striking resemblance to the slightly smaller 13.3-inch LarkBook CWI509 from Chuwi. The main difference between the two is the F7 Air's larger 14-inch display. The F7 Air also takes design cues from Apple's MacBook and MacBook Pro lines. We will see if the F7 Air can handle today's computing demands or if its beauty is only skin-deep.

The Teclast F7 Air competes against other compact, low-powered laptops like the aforementioned Chuwi LarkBook, the Chuwi AeroBook Pro, the Chuwi LapBook Pro, Acer's Swift 3 and Aspire 1, and the Medion Akoya E4253.

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Teclast F7 Air (F Series)
Processor
Intel Celeron N4120 4 x 1.1 - 2.6 GHz, Gemini Lake
Graphics adapter
Intel UHD Graphics 600 - 1024 MB, Core: 700 MHz, DDR4, Intel UHD Graphics 600 25.20.100.6577
Memory
8192 MB 
, 2x 4 GB, DDR4-2133
Display
14.00 inch 16:9, 1920 x 1080 pixel 157 PPI, No touchscreen, IPS, glossy: yes, 60 Hz
Storage
faspeed K7N8-256G, 256 GB 
, 236 GB free
Soundcard
Intel Gemini Lake SoC - High Definition Audio Controller
Connections
1 USB 2.0, 2 USB 3.0 / 3.1 Gen1, USB-C Power Delivery (PD), 1 HDMI, 1 DisplayPort, Audio Connections: 3.5 mm combo audio (mic/headphones), Card Reader: microSD
Networking
RealTek Semiconductor, Device ID: C821 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5), Bluetooth 5.0
Size
height x width x depth (in mm): 17 x 323 x 209 ( = 0.67 x 12.72 x 8.23 in)
Battery
32.725 Wh
Operating System
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: 1 MP
Additional features
Keyboard: chiclet, Keyboard Light: no, 12 Months Warranty, fanless
Weight
1.227 kg ( = 43.28 oz / 2.71 pounds), Power Supply: 117 g ( = 4.13 oz / 0.26 pounds)
Price
399.99 USD
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

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potential competitors in comparison

Rating
Date
Model
Weight
Height
Size
Resolution
Best Price
75 %
02/2021
Teclast F7 Air
Celeron N4120, UHD Graphics 600
1.2 kg17 mm14.00"1920x1080
77 %
12/2020
Chuwi LarkBook CWI509
Celeron N4120, UHD Graphics 600
1.1 kg12.3 mm13.30"1920x1080
79 %
08/2019
Chuwi LapBook Pro
Celeron N4100, UHD Graphics 600
1.4 kg13.4 mm14.00"1920x1080
78 %
06/2020
Chuwi AeroBook Pro
m3-8100Y, UHD Graphics 615
1.3 kg15.2 mm13.30"1920x1080
73 %
06/2019
Acer Aspire 1 A114-32-P0K1
Pentium N5000, UHD Graphics 605
1.7 kg17.95 mm14.00"1920x1080
85 %
06/2020
Acer Swift 3 SF314-42-R27B
R3 4300U, Vega 5
1.2 kg16.55 mm14.00"1920x1080
80 %
08/2019
Medion Akoya E4253-30025387
Pentium N5000, UHD Graphics 605
1.4 kg15 mm14.00"1920x1080

Case and Connectivity

The Teclast F7 Air punches well above its weight in terms of looks. The aluminum body looks and feels fantastic, and the gold color gives a nice pop of color. The brushed finish masks fingerprints well. The chassis is robust and solid. There is some flex along the keyboard deck, but it is not noticeable while typing. Despite its thin 5mm profile, the lid is sturdy and doesn't twist. The hinges are too stiff for one-handed opening, but they hold the display in place.

Our chief complaint lies with uneven gaps around the trackpad and the front edge of the bottom panel. These are minor nitpicks, though; the build quality and aesthetics are great. At first glance, the F7 Air looks more akin to laptops that cost US$1000 or more. 

Connectivity is adequate. The two USB-A (one 3.1 Gen 1, the other 2.0) have small flaps that fold down to accommodate the laptop's thin profile. These feel poorly made, but they have held up to multiple plug-ins over two weeks. There is also a mini HDMI port, so some users may need an adapter. The USB-C 3.1 Gen 1 port can be used to charge the device and supports display out via DisplayPort 1.2 (4K @ 30 Hz, FHD @ 120 Hz).

Images via Teclast
Images via Teclast

Size Comparison

343 mm / 13.5 inch 245 mm / 9.65 inch 17.95 mm / 0.707 inch 1.7 kg3.64 lbs330 mm / 13 inch 219 mm / 8.62 inch 15 mm / 0.591 inch 1.4 kg3.09 lbs323 mm / 12.7 inch 209 mm / 8.23 inch 17 mm / 0.669 inch 1.2 kg2.71 lbs323.4 mm / 12.7 inch 218.9 mm / 8.62 inch 16.55 mm / 0.652 inch 1.2 kg2.65 lbs324.2 mm / 12.8 inch 209 mm / 8.23 inch 13.4 mm / 0.528 inch 1.4 kg3.15 lbs308.5 mm / 12.1 inch 209 mm / 8.23 inch 15.2 mm / 0.598 inch 1.3 kg2.78 lbs307 mm / 12.1 inch 200.8 mm / 7.91 inch 12.3 mm / 0.4843 inch 1.1 kg2.41 lbs

Connectivity

Left: DC in, USB 3.1 Gen 1 (5 Gbps) Type-A, Mini HDMI, USB 3.1 Gen 1 Type-C (w/ power delivery and DisplayPort 1.2)
Left: DC in, USB 3.1 Gen 1 (5 Gbps) Type-A, Mini HDMI, USB 3.1 Gen 1 Type-C (w/ power delivery and DisplayPort 1.2)
Right: microSD, USB 2.0 Type-A, combo headphone/mic
Right: microSD, USB 2.0 Type-A, combo headphone/mic
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SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Average of class Subnotebook
  (14.9 - 195, n=52, last 2 years)
73.7 MB/s ∼100% +216%
Acer Aspire 1 A114-32-P0K1
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
65.7 MB/s ∼89% +182%
Chuwi AeroBook Pro
  (Toshiba Exceria Pro M501 64 GB UHS-II)
25.4 MB/s ∼34% +9%
Teclast F7 Air
  (Toshiba Exceria Pro M501 UHS-II)
23.2939 MB/s ∼32%
Chuwi LarkBook CWI509
  (Toshiba Exceria Pro M501 32 GB UHS-II)
23.1 MB/s ∼31% -1%
maximum AS SSD Seq Read Test (1GB)
Acer Aspire 1 A114-32-P0K1
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
85.3 MB/s ∼100% +219%
Average of class Subnotebook
  (16.3 - 206, n=50, last 2 years)
84.9 MB/s ∼100% +217%
Medion Akoya E4253-30025387
  (Toshiba Exceria Pro M501 microSDXC 64GB)
33.9 MB/s ∼40% +27%
Chuwi AeroBook Pro
  (Toshiba Exceria Pro M501 64 GB UHS-II)
27.41 MB/s ∼32% +2%
Teclast F7 Air
  (Toshiba Exceria Pro M501 UHS-II)
26.75 MB/s ∼31%
Chuwi LarkBook CWI509
  (Toshiba Exceria Pro M501 32 GB UHS-II)
26.63 MB/s ∼31% 0%
Networking
iperf3 Client (transmit) TCP 1 m 4M x10
Acer Swift 3 SF314-42-R27B
Intel Wi-Fi 6 AX200
615 (580min - 641max) MBit/s ∼100% +189%
Medion Akoya E4253-30025387
Intel Wireless AC 9462
326 (274min - 361max) MBit/s ∼53% +53%
Acer Aspire 1 A114-32-P0K1
Qualcomm Atheros QCA9377 Wireless Network Adapter
306 (207min - 387max) MBit/s ∼50% +44%
Chuwi LapBook Pro
Intel Dual Band Wireless-AC 3165
306 (239min - 358max) MBit/s ∼50% +44%
Chuwi LarkBook CWI509
Qualcomm Atheros QCA9377 Wireless Network Adapter
301 (258min - 338max) MBit/s ∼49% +41%
Chuwi AeroBook Pro
Intel Dual Band Wireless-AC 3165
287 (210min - 319max) MBit/s ∼47% +35%
Teclast F7 Air
RealTek Semiconductor, Device ID: C821
213 (184min - 230max) MBit/s ∼35%
iperf3 Client (receive) TCP 1 m 4M x10
Acer Swift 3 SF314-42-R27B
Intel Wi-Fi 6 AX200
898 (695min - 935max) MBit/s ∼100% +274%
Medion Akoya E4253-30025387
Intel Wireless AC 9462
348 (332min - 353max) MBit/s ∼39% +45%
Acer Aspire 1 A114-32-P0K1
Qualcomm Atheros QCA9377 Wireless Network Adapter
335 (328min - 340max) MBit/s ∼37% +40%
Chuwi AeroBook Pro
Intel Dual Band Wireless-AC 3165
323 (255min - 370max) MBit/s ∼36% +35%
Chuwi LapBook Pro
Intel Dual Band Wireless-AC 3165
284 (200min - 301max) MBit/s ∼32% +18%
Chuwi LarkBook CWI509
Qualcomm Atheros QCA9377 Wireless Network Adapter
249 (210min - 322max) MBit/s ∼28% +4%
Teclast F7 Air
RealTek Semiconductor, Device ID: C821
240 (221min - 256max) MBit/s ∼27%
0153045607590105120135150165180195210225240255243232239228230235241228253240225238248256244249241252228226221244253244250242250234250245243232239228230235241228253240225238248256244249241252228226221244253244250242250234250245218215212216225212214216212230209206184221219217217227205200208200195212219224217209220217Tooltip
; iperf3 Client (receive) TCP 1 m 4M x10; iperf 3.1.3: Ø240 (221-256)
; iperf3 Client (transmit) TCP 1 m 4M x10; iperf 3.1.3: Ø213 (184-230)
ColorChecker
10.1 ∆E
11.1 ∆E
13.7 ∆E
12.8 ∆E
16.6 ∆E
7 ∆E
9 ∆E
13.5 ∆E
19.8 ∆E
13.6 ∆E
6 ∆E
6.7 ∆E
8 ∆E
5.4 ∆E
19.2 ∆E
3.9 ∆E
15.6 ∆E
6.8 ∆E
8.4 ∆E
6.5 ∆E
7 ∆E
8.1 ∆E
6.2 ∆E
2.8 ∆E
ColorChecker Teclast F7 Air: 9.91 ∆E min: 2.77 - max: 19.79 ∆E

Maintenance

After removing 14 Phillips Heads screws, the bottom panel can be unclipped and removed. Users can upgrade the two M.2 2280 SATA drives only; all other components are soldered to the mainboard. Thankfully, there is a handy access panel to get to one of the SATA bays.

Input Devices

The keyboard is adequate. It looks and feels like a generic laptop keyboard. The alphanumeric keys are on the small side (~16 mm2). Travel distance is decent, but the pressure point is soft. As a result, the keys feel spongy. Clatter is noticeable but not obtrusive. Otherwise, there is nothing outstanding about the keyboard. The keyboard does not have a backlight.

The clickpad is fairly good. It offers a large surface (12.8 x 7.3 cm) with a sleek surface that offers smooth glide. Tracking is accurate, and the clicking mechanism causes no complaint. However, gestures feel sloppy; scrolling with two fingers sometimes results in zooming in or out of an open window, which is frustrating. As mentioned, there are some uneven gaps along the trackpad's edge, though these don't affect the experience.

Display

Subpixel matrix
Subpixel matrix

The display is a mixed bag. The 14-inch FHD panel is crisp and looks reasonably vibrant thanks to the glossy finish, but the backlight overall is rather dim (234 nits). Additionally, black levels are relatively poor (0.46), resulting in a low contrast ratio (512:1). The primary cause for this is the backlight's high minimum brightness; even at its lowest level, the backlight still shines at roughly 70 cd/m², which is a fair bit brighter than most laptops. As such, the F7 Air is not suitable for use in dark environments; the high minimum brightness can strain eyes.

Otherwise, the panel is good. It offers average response times for an IPS screen and has decently high PWM (1000 Hz), especially compared to other low-cost Chinese laptops.

Thin lid: 4 mm
Thin lid: 4 mm
Narrow bezels: ~4.5 mm
Narrow bezels: ~4.5 mm
261
cd/m²
243.3
cd/m²
263.1
cd/m²
233.6
cd/m²
235.6
cd/m²
233.5
cd/m²
221.6
cd/m²
208.6
cd/m²
205.5
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 263.1 cd/m² Average: 234 cd/m² Minimum: 70 cd/m²
Brightness Distribution: 78 %
Center on Battery: 235.6 cd/m²
Contrast: 512:1 (Black: 0.46 cd/m²)
ΔE Color 9.43 | 0.59-29.43 Ø5.5, calibrated: 3.82
ΔE Greyscale 8.7 | 0.64-98 Ø5.7
69% sRGB (Argyll 1.6.3 3D)
44% AdobeRGB 1998 (Argyll 1.6.3 3D)
47.08% AdobeRGB 1998 (Argyll 2.2.0 3D)
68.66% sRGB (Argyll 2.2.0 3D)
45.57% Display P3 (Argyll 2.2.0 3D)
Gamma: 1.983
Teclast F7 Air
1920x1080, 14.00
Chuwi LarkBook CWI509
M133X56, , 1920x1080, 13.30
Chuwi LapBook Pro
BOE CQ HV140FHNM-N61, , 1920x1080, 14.00
Chuwi AeroBook Pro
BOE NV133FHM-N6A, , 1920x1080, 13.30
Acer Aspire 1 A114-32-P0K1
Chi Mei N140HGE-EAA, , 1920x1080, 14.00
Acer Swift 3 SF314-42-R27B
AU Optronics B140HAN04.0, , 1920x1080, 14.00
Medion Akoya E4253-30025387
Chi Mei N140HCA-EAB, , 1920x1080, 14.00
Display
44%
50%
39%
-11%
-17%
-10%
Display P3 Coverage
45.57
69.89
53%
73.03
60%
68.7
51%
40.35
-11%
37.78
-17%
40.96
-10%
sRGB Coverage
68.66
92.7
35%
96.07
40%
88.04
28%
60.34
-12%
56.79
-17%
61.11
-11%
AdobeRGB 1998 Coverage
47.08
67.84
44%
70.3
49%
64.38
37%
41.71
-11%
39.03
-17%
42.37
-10%
Response Times
-7%
-37%
-30%
-18%
-15%
774%
Response Time Grey 50% / Grey 80% *
32.4 (14.8, 17.6)
32 (14.8, 17.2)
1%
42 (21, 21)
-30%
31 (16, 15)
4%
43 (23, 20)
-33%
42 (20, 22)
-30%
42 (23, 19)
-30%
Response Time Black / White *
28.4 (16, 12.4)
34.4 (19.6, 14.8)
-21%
29 (15, 14)
-2%
32 (16, 16)
-13%
13 (9, 4)
54%
28 (16, 12)
1%
28 (16, 12)
1%
PWM Frequency
1000 (99)
1000 (99)
0%
200 (90)
-80%
201.6 (100)
-80%
250 (20)
-75%
24500 (20)
2350%
Screen
20%
18%
21%
-18%
24%
10%
Brightness middle
235.6
235.3
0%
297
26%
242.3
3%
208
-12%
256
9%
262
11%
Brightness
234
223
-5%
268
15%
233
0%
192
-18%
237
1%
242
3%
Brightness Distribution
78
79
1%
77
-1%
88
13%
85
9%
81
4%
87
12%
Black Level *
0.46
0.24
48%
0.625
-36%
0.31
33%
0.41
11%
0.17
63%
0.505
-10%
Contrast
512
980
91%
475
-7%
782
53%
507
-1%
1506
194%
519
1%
Colorchecker DeltaE2000 *
9.43
8.37
11%
5.23
45%
6.72
29%
10.1
-7%
5.43
42%
5.49
42%
Colorchecker DeltaE2000 max. *
13.5
15.79
-17%
9.53
29%
11.67
14%
28.85
-114%
19.73
-46%
10.63
21%
Colorchecker DeltaE2000 calibrated *
3.82
2.64
31%
3.95
-3%
4.38
-15%
4.8
-26%
Greyscale DeltaE2000 *
8.7
9.8
-13%
6.72
23%
6
31%
10.96
-26%
3.29
62%
4.84
44%
Gamma
1.983 111%
2.16 102%
2.38 92%
2.18 101%
2.24 98%
2.52 87%
2.3 96%
CCT
8137 80%
7557 86%
7015 93%
7159 91%
11669 56%
6840 95%
6347 102%
Color Space (Percent of AdobeRGB 1998)
44
60.1
37%
63
43%
57.5
31%
38
-14%
36
-18%
39
-11%
Color Space (Percent of sRGB)
69
92.4
34%
96
39%
87.7
27%
59
-14%
57
-17%
61
-12%
Total Average (Program / Settings)
19% / 19%
10% / 13%
10% / 15%
-16% / -17%
-3% / 12%
258% / 149%

* ... smaller is better

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
28.4 ms ... rise ↗ and fall ↘ combined↗ 16 ms rise
↘ 12.4 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. » 66 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (23.9 ms).
       Response Time 50% Grey to 80% Grey
32.4 ms ... rise ↗ and fall ↘ combined↗ 14.8 ms rise
↘ 17.6 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 636 (maximum) ms. » 27 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (37.8 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 1000 Hz ≤ 99 % brightness setting

The display backlight flickers at 1000 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 99 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 1000 Hz is quite high, so most users sensitive to PWM should not notice any flickering.

In comparison: 52 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 15356 (minimum: 5 - maximum: 2500000) Hz was measured.

Out of the box, the F7 Air struggles with color accuracy. Considering its relatively high DeltaE2000 for colors and greyscale (9.43 and 8.7, respectively), the F7 Air is not well-suited for colorwork (DeltaE2000 < 3 recommended). The color temperature is also very cool (8137 K) and significantly far from the ideal of 6500 K. Color coverage is lackluster at 69% and 44% of the sRGB and AdobeRGB color spaces, respectively.

Calibration vastly improves the picture; average deltas for colors and greys fall to 3.82 and 2, respectively. The color temperature also normalizes to 6577 K when calibrated. Out of the box, the F7 Air falls behind laptops from Chuwi but competes well when calibrated.

ColorChecker
ColorChecker
Greyscale
Greyscale
Saturation Sweeps
Saturation Sweeps
ColorChecker (calibrated)
ColorChecker (calibrated)
Greyscale (calibrated)
Greyscale (calibrated)
Saturation Sweeps (calibrated)
Saturation Sweeps (calibrated)
vs AdobeRGB: 44%
vs AdobeRGB: 44%
vs sRGB: 69%
vs sRGB: 69%

Viewing angles are in line with expectations from an IPS panel. There is noticeable backlight bleed in the upper left corner that can be seen in dark scenes. Reflections present a problem; due to the panel's glossy finish and the overall weak backlight, using the F7 Air in sunlight or under bright lights is not feasible.

Backlight bleed in upper corners. Slight bleed in bottom corners.
Backlight bleed in upper corners. Slight bleed in bottom corners.
Exposure increased to highlight backlight bleed.
Exposure increased to highlight backlight bleed.
Outdoors under overcast skies.
Outdoors under overcast skies.

Performance

The Teclast F7 Air has a slow Intel Celeron CPU. While the machine can handle light office work and browse websites without much fuss, more demanding work will frustrate users.

CPU-Z: CPU
CPU-Z: CPU
CPU-Z: Caches
CPU-Z: Caches
CPU-Z: Mainboard
CPU-Z: Mainboard
CPU-Z: Memory
CPU-Z: Memory
GPU-Z
GPU-Z
HWiNFO64
HWiNFO64

Processor

The Intel Celeron N4120 is a low-powered, quad-core chip typically found in budget-oriented devices. The Gemini Lake SoC features a 1.1 GHz base clock with a single-core boost up to 2.6 GHz.

The name of the game here is efficiency rather than power. While the Celeron N4120 can handle light work (word processing, light web browsing), heavier tasks prove too much. Considering the N4120's low cost and low TDP (6 Watts), this is to be expected.

Compared to other notebooks in its class, the F7 Air falls near the bottom of the pile. The Acer Aspire 1 and Medion Akoya are slightly faster thanks to their Pentium Silver N5000 CPUs. Stepping up into the territory of the AMD Ryzen 3 4300U (Acer Swift 3) and the 10th and 11th Gen Intel Core i3 chips (Dell Latitude 3510 and Dell Inspiron 15, respectively), we see over double the CPU performance in Cinebench.

Cinebench R20
Cinebench R20
Cinebench R20 (on battery)
Cinebench R20 (on battery)
Cinebench R15
Cinebench R15
Cinebench R15 (on battery)
Cinebench R15 (on battery)
0306090120150180210240270300330360390420450480510540570226.02226.44227.45227.12226.7228.67227.88229.36229.2228.83229.2228.89227.94229.55228.85228.69228.71228.24228.71229.06228.07229.44228.91229.16227.89228.87228.63227.95228.89228.96224.4217.41218.48218.63218.78218.82218.07216.74218.65218.2218.99219.15218.65218.46218.87218.71218.69219.01218.63218.82218.95219219.04218.44219.42218.24217.22218.61218.8218.54218.63217.87218.76218.69217.61218.97219.1219.06217.9218.52217.76218.35218.89218.8218.5217.31218.5219.16218.93218.56249.49249.39249.63250.73250.07251.38250.94251.31250.77250.96251.21252.12251.18251.43251.23251.33250.96250.86250.52251.13251.08251.16250.89250.62251.04251.06251.48250.82251.23250.59250.77251.1251.48250.08251.55251.01250.06251.26251.46251.28162.29161.98162.12162.13161.86161.94161.75161.96162.01160.88162.02161.28161.41161.12161.7161.13161.48160.34161.22160.54160.83161.09161.27161.11161.67210.2208.32208.13208.11208.42208.11207.72207.72207.62208.09208.25208.18208.01207.54207.62208.26208.47206.5205.8203.3207.72208.2207.96207.96208.16208.06208.25207.79208.11208.47579.95569.27564.86563.79562.86561.56561.05557.97552.48552.29557.49556.54560.44560.66559.57560.29560.11561.35559.79558.91558.18559.38559.95559.58558.93559.92560.33559.21559.73560.17559.97557.86558.55558.58558.08557.87559.56559.08559.71558.54233.04226.74226.98227.63227.31227.57227.73228.12227.57228.34227.95227.35226.62228.34228.26226.94227.18228.12227.53227.71227.81227.53228.5227.2227.14227.87227.18227.26227.47227.57227.14227.26227.25226.42226.92224.67227.06225.44225.19226.66Tooltip
Teclast F7 Air Intel Celeron N4120: Ø228 (226.02-229.55)
Chuwi LarkBook CWI509 Intel Celeron N4120: Ø219 (216.74-224.4)
Chuwi LapBook Pro Intel Celeron N4100: Ø251 (249.39-252.12)
Chuwi AeroBook Pro Intel Core m3-8100Y: Ø161 (160.34-162.29)
Acer Aspire 1 A114-32-P0K1 Intel Pentium Silver N5000: Ø208 (203.3-210.2)
Acer Swift 3 SF314-42-R27B AMD Ryzen 3 4300U: Ø560 (552.29-579.95)
Medion Akoya E4253-30025387 Intel Pentium Silver N5000: Ø227 (224.67-233.04)
Cinebench R20: CPU (Single Core) | CPU (Multi Core)
Cinebench R15: CPU Single 64Bit | CPU Multi 64Bit
Blender 2.79: BMW27 CPU
7-Zip 18.03: 7z b 4 -mmt1 | 7z b 4
Geekbench 5.3: 64 Bit Single-Core Score | 64 Bit Multi-Core Score
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
Cinebench R20 / CPU (Single Core)
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
504 Points ∼100% +205%
Average of class Subnotebook
  (73 - 591, n=108, last 2 years)
433 Points ∼86% +162%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
427 Points ∼85% +159%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
405 Points ∼80% +145%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
311 Points ∼62% +88%
Chuwi AeroBook Pro
Intel Core m3-8100Y
243 Points ∼48% +47%
Medion Akoya E4253-30025387
Intel Pentium Silver N5000
173 Points ∼34% +5%
Acer Aspire 1 A114-32-P0K1
Intel Pentium Silver N5000
167 Points ∼33% +1%
Teclast F7 Air
Intel Celeron N4120
165 Points ∼33%
Average Intel Celeron N4120
  (159 - 166, n=3)
163 Points ∼32% -1%
Chuwi LapBook Pro
Intel Celeron N4100
153 Points ∼30% -7%
Cinebench R20 / CPU (Multi Core)
Average of class Subnotebook
  (110 - 4704, n=108, last 2 years)
1707 Points ∼100% +231%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
1432 Points ∼84% +178%
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
961 Points ∼56% +86%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
928 Points ∼54% +80%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
727 Points ∼43% +41%
Chuwi LapBook Pro
Intel Celeron N4100
560 Points ∼33% +9%
Teclast F7 Air
Intel Celeron N4120
516 Points ∼30%
Medion Akoya E4253-30025387
Intel Pentium Silver N5000
500 Points ∼29% -3%
Average Intel Celeron N4120
  (376 - 516, n=3)
461 Points ∼27% -11%
Acer Aspire 1 A114-32-P0K1
Intel Pentium Silver N5000
424 Points ∼25% -18%
Chuwi AeroBook Pro
Intel Core m3-8100Y
382 Points ∼22% -26%
Cinebench R15 / CPU Single 64Bit
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
193.55 Points ∼100% +165%
Average of class Subnotebook
  (31 - 237, n=109, last 2 years)
169 Points ∼87% +132%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
165 Points ∼85% +126%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
129 Points ∼67% +77%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
126 Points ∼65% +73%
Chuwi AeroBook Pro
Intel Core m3-8100Y
96.2 Points ∼50% +32%
Acer Aspire 1 A114-32-P0K1
Intel Pentium Silver N5000
78 Points ∼40% +7%
Medion Akoya E4253-30025387
Intel Pentium Silver N5000
76 Points ∼39% +4%
Average Intel Celeron N4120
  (73 - 74.5, n=3)
73.6 Points ∼38% +1%
Teclast F7 Air
Intel Celeron N4120
73 Points ∼38%
Chuwi LapBook Pro
Intel Celeron N4100
69 Points ∼36% -5%
Cinebench R15 / CPU Multi 64Bit
Average of class Subnotebook
  (82.3 - 2024, n=115, last 2 years)
773 Points ∼100% +247%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
580 Points ∼75% +160%
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
384.71 (375.47min - 384.71max) Points ∼50% +73%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
334 (317.34min - 333.73max) Points ∼43% +50%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
314 Points ∼41% +41%
Chuwi LapBook Pro
Intel Celeron N4100
251 Points ∼32% +13%
Medion Akoya E4253-30025387
Intel Pentium Silver N5000
233 Points ∼30% +4%
Average Intel Celeron N4120
  (223 - 234, n=3)
227 Points ∼29% +2%
Teclast F7 Air
Intel Celeron N4120
223 Points ∼29%
Acer Aspire 1 A114-32-P0K1
Intel Pentium Silver N5000
210 Points ∼27% -6%
Chuwi AeroBook Pro
Intel Core m3-8100Y
162 (160.34min - 162.29max) Points ∼21% -27%
Blender 2.79 / BMW27 CPU
Average Intel Celeron N4120
  (2558 - 2583, n=2)
2571 Seconds * ∼100% -1%
Teclast F7 Air
Intel Celeron N4120
2558 Seconds * ∼99%
Chuwi AeroBook Pro
Intel Core m3-8100Y
2519 Seconds * ∼98% +2%
Chuwi LapBook Pro
Intel Celeron N4100
2437 Seconds * ∼95% +5%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
1439 Seconds * ∼56% +44%
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
1188 Seconds * ∼46% +54%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
1174.3 Seconds * ∼46% +54%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
907 Seconds * ∼35% +65%
Average of class Subnotebook
  (4.2 - 6277, n=96, last 2 years)
875 Seconds * ∼34% +66%
7-Zip 18.03 / 7z b 4 -mmt1
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
4621 MIPS ∼100% +115%
Average of class Subnotebook
  (1653 - 5800, n=98, last 2 years)
4322 MIPS ∼94% +101%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
4038 MIPS ∼87% +88%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
4014 MIPS ∼87% +87%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
3406 MIPS ∼74% +59%
Chuwi AeroBook Pro
Intel Core m3-8100Y
2683 MIPS ∼58% +25%
Average Intel Celeron N4120
  (2145 - 2412, n=3)
2279 MIPS ∼49% +6%
Chuwi LapBook Pro
Intel Celeron N4100
2158 MIPS ∼47% +1%
Teclast F7 Air
Intel Celeron N4120
2145 MIPS ∼46%
7-Zip 18.03 / 7z b 4
Average of class Subnotebook
  (3267 - 54374, n=98, last 2 years)
21572 MIPS ∼100% +270%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
15043 MIPS ∼70% +158%
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
11122 MIPS ∼52% +91%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
10725 MIPS ∼50% +84%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
8984 MIPS ∼42% +54%
Chuwi LapBook Pro
Intel Celeron N4100
7729 MIPS ∼36% +33%
Average Intel Celeron N4120
  (5832 - 7436, n=3)
6817 MIPS ∼32% +17%
Teclast F7 Air
Intel Celeron N4120
5832 MIPS ∼27%
Chuwi AeroBook Pro
Intel Core m3-8100Y
4937 MIPS ∼23% -15%
Geekbench 5.3 / 64 Bit Single-Core Score
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
1337 Points ∼100% +205%
Average of class Subnotebook
  (293 - 1740, n=100, last 2 years)
1180 Points ∼88% +169%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
1027 Points ∼77% +134%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
957 Points ∼72% +118%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
813 Points ∼61% +86%
Chuwi AeroBook Pro
Intel Core m3-8100Y
809 Points ∼61% +85%
Average Intel Celeron N4120
  (438 - 439, n=2)
439 Points ∼33% 0%
Teclast F7 Air
Intel Celeron N4120
438 Points ∼33%
Geekbench 5.3 / 64 Bit Multi-Core Score
Average of class Subnotebook
  (591 - 7590, n=100, last 2 years)
4339 Points ∼100% +188%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
3330 Points ∼77% +121%
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
2427 Points ∼56% +61%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
2034 Points ∼47% +35%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
1604 Points ∼37% +6%
Teclast F7 Air
Intel Celeron N4120
1509 Points ∼35%
Average Intel Celeron N4120
  (1505 - 1509, n=2)
1507 Points ∼35% 0%
Chuwi AeroBook Pro
Intel Core m3-8100Y
1178 Points ∼27% -22%
HWBOT x265 Benchmark v2.2 / 4k Preset
Average of class Subnotebook
  (0.65 - 14.8, n=94, last 2 years)
5.58 fps ∼100% +304%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
4.37 fps ∼78% +217%
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
3.25 fps ∼58% +136%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
3.12 fps ∼56% +126%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
2.03 fps ∼36% +47%
Chuwi LapBook Pro
Intel Celeron N4100
1.5 fps ∼27% +9%
Chuwi AeroBook Pro
Intel Core m3-8100Y
1.42 fps ∼25% +3%
Teclast F7 Air
Intel Celeron N4120
1.38 fps ∼25%
Average Intel Celeron N4120
  (1.02 - 1.38, n=3)
1.237 fps ∼22% -10%
LibreOffice / 20 Documents To PDF
Average Intel Celeron N4120
  (131 - 157, n=3)
141 s * ∼100% -4%
Teclast F7 Air
Intel Celeron N4120
136 s * ∼96%
Chuwi AeroBook Pro
Intel Core m3-8100Y
128 s * ∼91% +6%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
95.6 s * ∼68% +30%
Average of class Subnotebook
  (12.9 - 281, n=88, last 2 years)
69.2 s * ∼49% +49%
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
62.8 s * ∼45% +54%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
62.2 s * ∼44% +54%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
28.13 s * ∼20% +79%
R Benchmark 2.5 / Overall mean
Teclast F7 Air
Intel Celeron N4120
1.645 sec * ∼100%
Average Intel Celeron N4120
  (1.642 - 1.649, n=3)
1.645 sec * ∼100% -0%
Chuwi AeroBook Pro
Intel Core m3-8100Y
1.204 sec * ∼73% +27%
Asus Vivobook 15 F512DA-SH31
AMD Ryzen 3 3200U
0.846 sec * ∼51% +49%
Dell Latitude 15 3510 NK2MC
Intel Core i3-10110U
0.76 sec * ∼46% +54%
Average of class Subnotebook
  (0.501 - 2.21, n=94, last 2 years)
0.744 sec * ∼45% +55%
Acer Swift 3 SF314-42-R27B
AMD Ryzen 3 4300U
0.686 sec * ∼42% +58%
Dell Inspiron 15 5000 5502
Intel Core i3-1115G4
0.655 sec * ∼40% +60%

* ... smaller is better

Cinebench R15 CPU Single 64Bit
73 Points
Cinebench R15 CPU Multi 64Bit
223 Points
Cinebench R15 OpenGL 64Bit
18.52 fps
Cinebench R15 Ref. Match 64Bit
97.8 %
Help

System Performance

PCMark 10
PCMark 10

Overall system performance is adequate for general office work, social media, and some media streaming. The Teclast F7 Air is in line with other low-cost Chinese laptops as well as budget machines like the Acer Aspire 1. However, the F7 Air pales in comparison to even the lowest-end Ryzen chip, like the one found in the Acer Swift 3. Still, the F7 Air should be good enough for most people.

PCMark 10
Score
Acer Swift 3 SF314-42-R27B
Vega 5, R3 4300U, SK hynix BC511 HFM256GDJTNI-82A0
4322 Points ∼49% +140%
Average of class Subnotebook
  (790 - 6414, n=105, last 2 years)
4185 Points ∼48% +132%
Chuwi AeroBook Pro
UHD Graphics 615, m3-8100Y, Netac SSD 256GB
2447 Points ∼28% +36%
Medion Akoya E4253-30025387
UHD Graphics 605, Pentium N5000, 64 GB eMMC Flash
1902 Points ∼22% +6%
Acer Aspire 1 A114-32-P0K1
UHD Graphics 605, Pentium N5000, 64 GB eMMC Flash
1879 Points ∼21% +4%
Teclast F7 Air
UHD Graphics 600, Celeron N4120, faspeed K7N8-256G
1801 Points ∼21%
Average Intel Celeron N4120, Intel UHD Graphics 600
  (1671 - 1801, n=2)
1736 Points ∼20% -4%
Essentials
Acer Swift 3 SF314-42-R27B
Vega 5, R3 4300U, SK hynix BC511 HFM256GDJTNI-82A0
8600 Points ∼75% +72%
Average of class Subnotebook
  (2544 - 10836, n=105, last 2 years)
8452 Points ∼73% +69%
Chuwi AeroBook Pro
UHD Graphics 615, m3-8100Y, Netac SSD 256GB
5783 Points ∼50% +16%
Teclast F7 Air
UHD Graphics 600, Celeron N4120, faspeed K7N8-256G
5005 Points ∼44%
Average Intel Celeron N4120, Intel UHD Graphics 600
  (4599 - 5005, n=2)
4802 Points ∼42% -4%
Acer Aspire 1 A114-32-P0K1
UHD Graphics 605, Pentium N5000, 64 GB eMMC Flash
4769 Points ∼41% -5%
Medion Akoya E4253-30025387
UHD Graphics 605, Pentium N5000, 64 GB eMMC Flash
4570 Points ∼40% -9%
Productivity
Acer Swift 3 SF314-42-R27B
Vega 5, R3 4300U, SK hynix BC511 HFM256GDJTNI-82A0
6489 Points ∼58% +131%
Average of class Subnotebook
  (1304 - 9852, n=105, last 2 years)
6284 Points ∼56% +123%
Chuwi AeroBook Pro
UHD Graphics 615, m3-8100Y, Netac SSD 256GB
4730 Points ∼42% +68%
Medion Akoya E4253-30025387
UHD Graphics 605, Pentium N5000, 64 GB eMMC Flash
2966 Points ∼27% +5%
Acer Aspire 1 A114-32-P0K1
UHD Graphics 605, Pentium N5000, 64 GB eMMC Flash
2944 Points ∼26% +5%
Average Intel Celeron N4120, Intel UHD Graphics 600
  (2813 - 2833, n=2)
2823 Points ∼25% 0%
Teclast F7 Air
UHD Graphics 600, Celeron N4120, faspeed K7N8-256G
2813 Points ∼25%
Digital Content Creation
Acer Swift 3 SF314-42-R27B
Vega 5, R3 4300U, SK hynix BC511 HFM256GDJTNI-82A0
3926 Points ∼25% +249%
Average of class Subnotebook
  (405 - 6709, n=105, last 2 years)
3818 Points ∼25% +239%
Chuwi AeroBook Pro
UHD Graphics 615, m3-8100Y, Netac SSD 256GB
1454 Points ∼9% +29%
Medion Akoya E4253-30025387
UHD Graphics 605, Pentium N5000, 64 GB eMMC Flash
1378 Points ∼9% +22%
Acer Aspire 1 A114-32-P0K1
UHD Graphics 605, Pentium N5000, 64 GB eMMC Flash
1283 Points ∼8% +14%
Teclast F7 Air
UHD Graphics 600, Celeron N4120, faspeed K7N8-256G
1126 Points ∼7%
Average Intel Celeron N4120, Intel UHD Graphics 600
  (973 - 1126, n=2)
1050 Points ∼7% -7%
PCMark 10 Score
1801 points
Help

DPC Latency

The Teclast F7 Air experiences high DPC latencies, per out standardized LatencyMon test. As such, it should not be used for the real-time processing of video or audio files. 

DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95
Teclast F7 Air
UHD Graphics 600, Celeron N4120, faspeed K7N8-256G
3412.8 μs * ∼100%

* ... smaller is better

Storage Devices

The Teclast F7 Air has dual M.2 slots that operate at SATA 3 speeds. Drive read and write speeds are decent for SATA SSDs and are significantly faster than the eMMC storage found in other budget laptops. 

AS SSD
AS SSD
CrystalDiskMark 6
CrystalDiskMark 6
Teclast F7 Air
faspeed K7N8-256G
Chuwi LarkBook CWI509
Kingston RBUSNS8180DS3256GJ
Chuwi AeroBook Pro
Netac SSD 256GB
Acer Aspire 1 A114-32-P0K1
64 GB eMMC Flash
Acer Swift 3 SF314-42-R27B
SK hynix BC511 HFM256GDJTNI-82A0
CrystalDiskMark 5.2 / 6
4%
44%
-70%
159%
Write 4K
74.98
63.86
-15%
113.1
51%
24.08
-68%
96.28
28%
Read 4K
27.31
34.38
26%
30.21
11%
11.48
-58%
35.06
28%
Write Seq
373.9
439.8
149.7
1001
Read Seq
411.7
535.7
271.2
1072
Write 4K Q32T1
120.1
124.1
3%
279.1
132%
23.87
-80%
423.9
253%
Read 4K Q32T1
135.2
139.5
3%
227.3
68%
30.76
-77%
464.7
244%
Write Seq Q32T1
469.2
500.4
7%
469.7
0%
137.2
-71%
967.1
106%
Read Seq Q32T1
555.3
537
-3%
555.4
0%
205.1
-63%
2179
292%
Write 4K Q8T8
264.6
Read 4K Q8T8
135.6
AS SSD
109%
26%
180%
Seq Read
430.22
425.63
-1%
445.42
4%
1682.2
291%
Seq Write
412.29
417.09
1%
418.93
2%
931.13
126%
4K Read
13.21
28.45
115%
22.81
73%
41.53
214%
4K Write
50.06
48.14
-4%
83.34
66%
109.06
118%
4K-64 Read
122.88
928.27
655%
180.57
47%
603.26
391%
4K-64 Write
215.55
328.51
52%
281.53
31%
712.84
231%
Access Time Read *
0.151
0.175
-16%
0.113
25%
Access Time Write *
0.17
0.189
-11%
0.161
5%
0.035
79%
Score Read
179
999
458%
248
39%
813
354%
Score Write
307
418
36%
408
33%
915
198%
Score Total
581
1931
232%
789
36%
2118
265%
Copy ISO MB/s
440.82
473.62
7%
410.75
-7%
691.96
57%
Copy Program MB/s
193.42
198.62
3%
204.43
6%
226.5
17%
Copy Game MB/s
396.77
415.26
5%
435.51
10%
391.55
-1%
Total Average (Program / Settings)
57% / 78%
35% / 32%
-70% / -70%
170% / 173%

* ... smaller is better

faspeed K7N8-256G
CDM 5/6 Read Seq Q32T1: 555.3 MB/s
CDM 5/6 Write Seq Q32T1: 469.2 MB/s
CDM 5/6 Read 4K Q32T1: 135.2 MB/s
CDM 5/6 Write 4K Q32T1: 120.1 MB/s
CDM 5/6 Read 4K: 27.31 MB/s
CDM 5/6 Write 4K: 74.98 MB/s
CDM 6 Write 4K Q8T8: 264.6 MB/s
CDM 6 Read 4K Q8T8: 135.6 MB/s

GPU Performance

The Intel UHD Graphics 600 iGPU supports modern video codecs (H.265/HEVC, VP9) for media playback. The GPU also supports up to 4K 60 Hz through the mini HDMI 2.0a port and up to two external FHD displays via the mini HDMI and USB-C ports.

4K streaming is possible, but the laptop occasionally drops frames. The result is a bit jittery. If streaming video is adequately cached, playback is fairly smooth.

The Teclast F7 Air fits snugly amongst other budget laptops with low-powered GPUs. The Intel UHD Graphics 620, which is commonly seen in Intel notebooks, is about twice as powerful as the UHD Graphics 600 in 3DMark. More powerful iGPUs like AMD's Vega 5 or Intel's new Iris Xe Graphics are roughly 5-6 times more powerful.

UPDATE 2/10/2021: Shortly after this review, we updated the driver for the Intel UHD Graphics 600 to the latest version (27.20.100.9168). The updated driver has no noticeable effect on the GPU's performance; 4K video playback is similar (some dropped frames while the video buffers, smooth playback after sufficient time for buffering/caching has elapsed). Benchmark results are also similar.

Fire Strike
Fire Strike
Cloud Gate
Cloud Gate
Ice Storm Extreme
Ice Storm Extreme
3DMark
1920x1080 Fire Strike Graphics
Lenovo ThinkPad L13 Gen2-20VH0017GE
Intel Iris Xe Graphics G7 80EUs, Intel Core i5-1135G7
3076 Points ∼100% +560%
Average of class Subnotebook
  (313 - 8743, n=104, last 2 years)
2950 Points ∼96% +533%
Lenovo IdeaPad S540-13ARE-82DL000YGE
AMD Radeon RX Vega 6 (Ryzen 4000/5000), AMD Ryzen 5 4600U
2793 Points ∼91% +499%
Acer Swift 3 SF314-42-R27B
AMD Radeon RX Vega 5, AMD Ryzen 3 4300U
2438 Points ∼79% +423%
Dell Latitude 15 3510 NK2MC
Intel UHD Graphics 620, Intel Core i3-10110U
952 Points ∼31% +104%
Chuwi AeroBook Pro
Intel UHD Graphics 615, Intel Core m3-8100Y
630 Points ∼20% +35%
Medion Akoya E4253-30025387
Intel UHD Graphics 605, Intel Pentium Silver N5000
576 Points ∼19% +24%
Chuwi LarkBook CWI509
Intel UHD Graphics 600, Intel Celeron N4120
472 Points ∼15% +1%
Teclast F7 Air
Intel UHD Graphics 600, Intel Celeron N4120
466 Points ∼15%
Chuwi LapBook Pro
Intel UHD Graphics 600, Intel Celeron N4100
430 Points ∼14% -8%
Acer Aspire 1 A114-32-P0K1
Intel UHD Graphics 605, Intel Pentium Silver N5000
425 Points ∼14% -9%
Average Intel UHD Graphics 600
  (315 - 486, n=17)
421 Points ∼14% -10%
1280x720 Cloud Gate Standard Graphics
Lenovo IdeaPad S540-13ARE-82DL000YGE
AMD Radeon RX Vega 6 (Ryzen 4000/5000), AMD Ryzen 5 4600U
22186 Points ∼100% +487%
Lenovo ThinkPad L13 Gen2-20VH0017GE
Intel Iris Xe Graphics G7 80EUs, Intel Core i5-1135G7
19237 Points ∼87% +409%
Average of class Subnotebook
  (1652 - 53539, n=80, last 2 years)
18416 Points ∼83% +387%
Acer Swift 3 SF314-42-R27B
AMD Radeon RX Vega 5, AMD Ryzen 3 4300U
18282 Points ∼82% +384%
Dell Latitude 15 3510 NK2MC
Intel UHD Graphics 620, Intel Core i3-10110U
7209 Points ∼32% +91%
Chuwi AeroBook Pro
Intel UHD Graphics 615, Intel Core m3-8100Y
4930 Points ∼22% +30%
Chuwi LarkBook CWI509
Intel UHD Graphics 600, Intel Celeron N4120
3932 Points ∼18% +4%
Teclast F7 Air
Intel UHD Graphics 600, Intel Celeron N4120
3781 Points ∼17%
Medion Akoya E4253-30025387
Intel UHD Graphics 605, Intel Pentium Silver N5000
3701 Points ∼17% -2%
Chuwi LapBook Pro
Intel UHD Graphics 600, Intel Celeron N4100
3430 Points ∼15% -9%
Average Intel UHD Graphics 600
  (2714 - 3932, n=16)
3411 Points ∼15% -10%
Acer Aspire 1 A114-32-P0K1
Intel UHD Graphics 605, Intel Pentium Silver N5000
2874 Points ∼13% -24%
2560x1440 Time Spy Graphics
Average of class Subnotebook
  (116 - 3276, n=87, last 2 years)
1015 Points ∼100% +775%
Lenovo ThinkPad L13 Gen2-20VH0017GE
Intel Iris Xe Graphics G7 80EUs, Intel Core i5-1135G7
971 Points ∼96% +737%
Lenovo IdeaPad S540-13ARE-82DL000YGE
AMD Radeon RX Vega 6 (Ryzen 4000/5000), AMD Ryzen 5 4600U
852 Points ∼84% +634%
Acer Swift 3 SF314-42-R27B
AMD Radeon RX Vega 5, AMD Ryzen 3 4300U
733 Points ∼72% +532%
Chuwi AeroBook Pro
Intel UHD Graphics 615, Intel Core m3-8100Y
205 Points ∼20% +77%
Chuwi LarkBook CWI509
Intel UHD Graphics 600, Intel Celeron N4120
120 Points ∼12% +3%
Teclast F7 Air
Intel UHD Graphics 600, Intel Celeron N4120
116 Points ∼11%
Average Intel UHD Graphics 600
  (85 - 124, n=10)
109 Points ∼11% -6%
3DMark Cloud Gate Standard Score
3361 points
3DMark Fire Strike Score
434 points
3DMark Time Spy Score
133 points
Help

Gaming Performance

The Teclast F7 Air can handle only light and Indie titles. Games with simple 2D graphics like Stardew Valley and Papers, Please run without much issue. However, modern 3D titles are not playable. Even older games like Bioshock Infinite struggle to hit 30 fps on the lowest settings.

low med. high ultra
BioShock Infinite (2013) 28 fps
Dota 2 Reborn (2015) 38.5 17.2 8.2 7.4 fps
Final Fantasy XV Benchmark (2018) 4.8 fps
X-Plane 11.11 (2018) 8.57 5.64 4.91 fps

Emissions & Power

System Noise

The Teclast F7 Air is fanless and is thus completely silent. There is no coil whine.

Temperature

Despite having no fan, the F7 Air remains relatively cool. Under full synthetic load, most of the bottom panel stays under 40° C. There is a hot spot directly over the SoC and copper heat shield that reaches 43.8° C. Otherwise, external heat is not an issue.

This is primarily due to the efficient CPU. Under synthetic stress, we notice some throttling: after running Priime95 for a few minutes, the CPU pulls back to 1.7-1.8 GHz to keep temperatures in check. During an hour-long run of Prime95, the system keeps CPU temperatures between 73-78° C.

Stressing the GPU with FurMark sees the SoC settle in around 70° C while the GPU manages to boost to 700 MHz with occasional dips down to 350 MHz. Stressing both the CPU and GPU causes the processor to throttle further back to 1.5 GHz. The GPU particularly suffers during this test, averaging a mere 150-165 MHz. However, this load is not indicative of real-world use.

Prime95
Prime95
FurMark
FurMark
Prime95 and FurMark
Prime95 and FurMark
Max. Load
 37.6 °C
100 F
41.2 °C
106 F
28.2 °C
83 F
 
 31.8 °C
89 F
32.6 °C
91 F
27 °C
81 F
 
 30.6 °C
87 F
28.8 °C
84 F
27 °C
81 F
 
Maximum: 41.2 °C = 106 F
Average: 31.6 °C = 89 F
31 °C
88 F
43.8 °C
111 F
40.6 °C
105 F
29.4 °C
85 F
37 °C
99 F
36.2 °C
97 F
29 °C
84 F
32 °C
90 F
33 °C
91 F
Maximum: 43.8 °C = 111 F
Average: 34.7 °C = 94 F
Power Supply (max.)  39 °C = 102 F | Room Temperature 20 °C = 68 F | Fluke 62 Mini
(+) The average temperature for the upper side under maximal load is 31.6 °C / 89 F, compared to the average of 30.6 °C / 87 F for the devices in the class Subnotebook.
(±) The maximum temperature on the upper side is 41.2 °C / 106 F, compared to the average of 35.7 °C / 96 F, ranging from 22 to 58.4 °C for the class Subnotebook.
(±) The bottom heats up to a maximum of 43.8 °C / 111 F, compared to the average of 39.5 °C / 103 F
(+) In idle usage, the average temperature for the upper side is 29.7 °C / 85 F, compared to the device average of 30.6 °C / 87 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 30.6 °C / 87.1 F and are therefore cool to the touch.
(-) The average temperature of the palmrest area of similar devices was 28.4 °C / 83.1 F (-2.2 °C / -4 F).
Keyboard, idle
Keyboard, idle
Bottom, idle
Bottom, idle
Keyboard, load
Keyboard, load
Bottom, load
Bottom, load
Power adapter, load
Power adapter, load
 

Speakers

Speaker sound profile.
Speaker sound profile.

The speakers get relatively loud, particularly considering the machine's size and price. However, music and media are heavily distorted at more than 80% volume with unpleasant pops and crackles. Under 80% volume, the speakers are decent. Bass is almost entirely absent, but mids and highs and loud and clear. Overall, the speakers are fine for media consumption, but headphones are recommended for clarity and a fuller sound profile.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2042.442.442.42533.33633.33134.936.334.94029.327.229.35029.927.229.96332.83032.88037.93137.91004029.94012543.230.643.216049.225.149.220051.924.951.925057.722.757.731560.322.660.34006421.26450068.518.468.56307116.27180078.415.578.4100082.414.682.4125080.314.180.3160079.114.179.1200075.614.475.6250073.214.373.2315070.41470.4400068.513.568.5500069.613.369.6630076.413.476.4800076.113.176.11000073.81373.81250071.413.371.41600066.612.966.6SPL88.427.888.4N73.8173.8median 70.4median 14.4median 70.4Delta8.64.68.640.53940.53739.23736.336.636.338.63738.637.634.937.63834.13835.333.835.33433.23433.131.533.133.631.333.633.730.333.736.528.736.54128.94144.727.944.748.727.348.755.227.355.26026.36064.925.764.966.625.266.668.724.768.766.324.566.365.824.265.866246671.423.871.477.623.677.677.323.677.367.123.667.160.623.560.657.523.657.54423.74482.837.282.847.9347.9median 60median 25.2median 6011.62.411.6hearing rangehide median Pink NoiseTeclast F7 AirChuwi AeroBook Pro
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Teclast F7 Air audio analysis

(+) | speakers can play relatively loud (88.4 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 20% lower than median
(+) | bass is linear (6.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 6.6% higher than median
(+) | mids are linear (6.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.9% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (15.4% difference to median)
Compared to same class
» 31% of all tested devices in this class were better, 8% similar, 62% worse
» The best had a delta of 7%, average was 19%, worst was 50%
Compared to all devices tested
» 19% of all tested devices were better, 5% similar, 77% worse
» The best had a delta of 3%, average was 20%, worst was 65%

Chuwi AeroBook Pro audio analysis

(+) | speakers can play relatively loud (82.8 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 24.7% lower than median
(+) | bass is linear (4.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | reduced mids - on average 7.2% lower than median
(±) | linearity of mids is average (10.8% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 9.4% higher than median
(±) | linearity of highs is average (12% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (36.2% difference to median)
Compared to same class
» 97% of all tested devices in this class were better, 2% similar, 2% worse
» The best had a delta of 7%, average was 19%, worst was 50%
Compared to all devices tested
» 97% of all tested devices were better, 1% similar, 2% worse
» The best had a delta of 3%, average was 20%, worst was 65%

Power Consumption

Since the F7 Air uses low-powered components (e.g, the CPU's TDP is rated at 6 Watts), overall power consumption is very low. Under full synthetic load, the system pulls only 20 Watts. The power adapter is rated at 24 Watts, which can easily supply enough juice for any workload.

3DMark
3DMark
Full load
Full load
Power Consumption
Off / Standbydarklight 0.45 / 0.46 Watt
Idledarkmidlight 6.7 / 9.6 / 9.9 Watt
Load midlight 19.1 / 27.1 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Currently we use the Metrahit Energy, a professional single phase power quality and energy measurement digital multimeter, for our measurements. Find out more about it here. All of our test methods can be found here.

Battery Life

Despite its low power usage, the F7 Air manages to last just over four hours in our WiFi v1.3 battery test (screen set to 150 nits, balanced power profile, opening a new webpage every 30-40 seconds). This is primarily due to the tiny 32.7 Wh battery. Since the device is so thin, battery size must be constrained. Runtimes suffer as a result. However, the F7 Air can be charged via the USB-C port, which is a nice plus.

Battery Runtime - WiFi Websurfing 1.3
Acer Swift 3 SF314-42-R27B
R3 4300U, Vega 5, 48.85 Wh
724 min ∼27% +176%
Average of class Subnotebook
  (258 - 1223, n=116, last 2 years)
583 min ∼22% +123%
Medion Akoya E4253-30025387
Pentium N5000, UHD Graphics 605, 41 Wh
555 min ∼21% +112%
Chuwi LapBook Pro
Celeron N4100, UHD Graphics 600, 38 Wh
491 min ∼19% +87%
Acer Aspire 1 A114-32-P0K1
Pentium N5000, UHD Graphics 605, 37 Wh
383 min ∼15% +46%
Chuwi AeroBook Pro
m3-8100Y, UHD Graphics 615, 38 Wh
297 min ∼11% +13%
Chuwi LarkBook CWI509
Celeron N4120, UHD Graphics 600, 34.8 Wh
266 min ∼10% +2%
Teclast F7 Air
Celeron N4120, UHD Graphics 600, 32.725 Wh
262 min ∼10%
Battery Runtime
NBC WiFi Websurfing Battery Test 1.3
4h 22min

Pros

+ beautful design
+ good build quality
+ very thin and highly portable
+ screen is good once calibrated

Cons

- slow CPU w/ poor performance
- short battery life
- keyboard feels cheap
- trackpad gestures are unreliable
- screen is bad out of the box

Verdict

In review: Teclast F7 Air. Review unit provided by Teclast.
In review: Teclast F7 Air. Review unit provided by Teclast.

The Teclast F7 Air is a prime example of form over function. The laptop is well-designed and looks stunning, especially considering its price (US $399.99). Most laptops in this price range look like cheap hunks of plastic, but the F7 Air looks more akin to the 12-inch MacBook.

However, its beauty is only skin deep. The low-powered Intel Celeron N4120 is too weak and too slow for anything other than simple office work, email, and some light web browsing. The machine can handle some media streaming, including 4K video, but this requires patience and is far from perfect.

Add to that poor battery life, a chintzy keyboard, and a lackluster display (prior to calibration), and the compromises become glaringly obvious. There are some good things here, primarily aesthetics and build quality. However, there are too many other shortcomings for us to recommend the laptop.

Ultimately, the Teclast F7 Air suffers the same fate as other low-powered budget laptops. It is not powerful enough for all but the simplest tasks. If you want a beautiful laptop and don't care about or need powerful hardware, the Teclast F7 Air may be a good value for you. However, a simple and similarly-priced machine with an Intel Core i3 or AMD Ryzen 3 CPU will blow the F7 Air out of the water.

Price and availability

The Teclast F7 Air sells for US$399.99. It is available from select retailers like Gearbest and AliExpress.

Teclast F7 Air - 02/07/2021 v7
Sam Medley

Chassis
80 / 98 → 82%
Keyboard
69%
Pointing Device
64%
Connectivity
51 / 75 → 67%
Weight
72 / 20-75 → 95%
Battery
60%
Display
72%
Games Performance
22 / 78 → 28%
Application Performance
60 / 85 → 71%
Temperature
89%
Noise
100%
Audio
79 / 91 → 87%
Camera
16 / 85 → 18%
Average
64%
75%
Subnotebook - Weighted Average

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Sam Medley
Sam Medley - Senior Tech Writer - 1129 articles published on Notebookcheck since 2016
I've been a computer geek my entire life. After graduating college with a degree in Mathematics, I worked in finance and banking a few years before taking a job as a database administrator. I started working with Notebookcheck in October of 2016 and have enjoyed writing news and reviews. I've also written for other outlets including UltrabookReview and GeeksWorldWide, focusing on consumer guidance and video gaming. My areas of interest include the business side of technology, retro gaming, Linux, and innovative gadgets. When I'm not writing on electronics or tinkering with a device, I'm either outside with my family, enjoying a decade-old video game, or playing drums or piano.
contact me via: @samuel_medley
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> Notebook / Laptop Reviews and News > Reviews > Teclast F7 Air Laptop Review
Sam Medley, 2021-02- 8 (Update: 2021-02-11)