联想 Tab 4 8 平板电脑简短评测

Name: Lenovo Tab 4 8
Brand: Lenovo

适合家庭使用。 联想 Tab 4 8是一台面向于全体家庭成员的平板电脑。它通过配置的不同来实现这点。在本评测中，您将了解到是否值得购买它。

Florian Wimmer, ✓ Tanja Hinum (translated by Kangfei Zheng), Published 11/06/2017 🇺🇸 🇩🇪 ...

Android ARM Tablet Touchscreen

Test device courtesy of notebooksbilliger.de

Download your licensed rating image as PNG / SVG

Lenovo Tab 4 8 (Tab 4 Series)

Processor

Qualcomm Snapdragon 425 (MSM8917) 4 x 1.4 GHz, Cortex-A53

Graphics adapter

Qualcomm Adreno 308

Memory

2048 MB

Display

8.00 inch 16:10, 1280 x 800 pixel 189 PPI, capacitive touchscreen, IPS, glossy: yes

Storage

16 GB eMMC Flash, 16 GB

, 9.2 GB free

Connections

1 USB 2.0, Audio Connections: 3.5毫米耳机接口, Card Reader: microSD, Sensors: 加速度计，陀螺仪, Miracast

Networking

802.11 b/g/n (b/g/n = Wi-Fi 4/), Bluetooth 4.0, GPS

Size

height x width x depth (in mm): 8.2 x 211 x 124

Battery

18.4 Wh, 4850 mAh Lithium-Polymer

Operating System

Android 7.1 Nougat

Camera

Primary Camera: 5 MPix
Secondary Camera: 2 MPix

Additional features

Speakers: 前置立体声扬声器, Keyboard: 虚拟键盘, charger, USB cable, SHAREit, SYNCit, 24 Months Warranty

Weight

310 g, Power Supply: 48 g

Price

169 Euro

Links

Lenovo homepage

Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

see all specifications

Size Comparison

Amazon Fire HD 8 2017 Huawei MediaPad M3 8.4 inch Lenovo Tab 4 8 Asus ZenPad 8.0 Z380M-6B026A DIN A5 ❌

Networking
iperf3 transmit AX12
Huawei MediaPad M3 8.4 inch Mali-T880 MP4, Kirin 950, 32 GB eMMC Flash	209 MBit/s +404%
Amazon Fire HD 8 2017 Mali-T720, MT8163 V/B 1.3 GHz, 16 GB eMMC Flash	86 MBit/s +107%
Lenovo Tab 4 10 Adreno 308, 425, 16 GB eMMC Flash	50.9 MBit/s +23%
Lenovo Tab 4 8 Adreno 308, 425, 16 GB eMMC Flash	41.5 MBit/s
iperf3 receive AX12
Huawei MediaPad M3 8.4 inch Mali-T880 MP4, Kirin 950, 32 GB eMMC Flash	209 MBit/s +349%
Amazon Fire HD 8 2017 Mali-T720, MT8163 V/B 1.3 GHz, 16 GB eMMC Flash	99.3 MBit/s +114%
Lenovo Tab 4 10 Adreno 308, 425, 16 GB eMMC Flash	49.3 MBit/s +6%
Lenovo Tab 4 8 Adreno 308, 425, 16 GB eMMC Flash	46.5 MBit/s

Image Comparison

Choose a scene and navigate within the first image. One click changes the position on touchscreens. One click on the zoomed-in image opens the original in a new window. The first image shows the scaled photograph of the test device.

Scene 1 Scene 2 Scene 3

click to load images

click to load images

click to load images


442 cd/m²	469 cd/m²	445 cd/m²
441 cd/m²	455 cd/m²	443 cd/m²
441 cd/m²	453 cd/m²	429 cd/m²

Distribution of brightness

tested with X-Rite i1Pro 2

Maximum: 469 cd/m² (Nits) Average: 446.4 cd/m² Minimum: 6.58 cd/m²
Brightness Distribution: 91 %
Center on Battery: 455 cd/m²
Contrast: 892:1 (Black: 0.51 cd/m²)
ΔE Color 5.5 | 0.5-29.43 Ø4.91
ΔE Greyscale 5.5 | 0.5-98 Ø5.2
80.4% sRGB (Calman 2D)
Gamma: 2.23

	Lenovo Tab 4 8 IPS, 1280x800, 8"	Amazon Fire HD 8 2017 IPS, 1280x800, 8"	Asus ZenPad 8.0 Z380M-6B026A IPS, 1280x800, 8"	Huawei MediaPad M3 8.4 inch IPS, 2560x1600, 8.4"	Lenovo Tab 4 10 IPS, 1280x800, 10.1"
Screen		-13%	5%	3%	15%
Brightness middle	455	419 -8%	363 -20%	460 1%	316 -31%
Brightness	446	412 -8%	348 -22%	445 0%	305 -32%
Brightness Distribution	91	91 0%	90 -1%	90 -1%	86 -5%
Black Level *	0.51	0.39 24%	0.26 49%	0.45 12%	0.2 61%
Contrast	892	1074 20%	1396 57%	1022 15%	1580 77%
Colorchecker dE 2000 *	5.5	8.5 -55%	5.8 -5%	6.2 -13%	5 9%
Colorchecker dE 2000 max. *	14.8	13.8 7%	17.8 -20%	10.5 29%	8.7 41%
Greyscale dE 2000 *	5.5	10.3 -87%	5.5 -0%	6.5 -18%	5.7 -4%
Gamma	2.23 ^99%	2.6 ^85%	2.24 ^98%	2.33 ^94%	2.25 ^98%
CCT	7852 ^83%	6216 ^105%	7388 ^88%	8056 ^81%	7921 ^82%

* ... smaller is better

Screen Flickering / PWM (Pulse-Width Modulation)

ℹ

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: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8705 (minimum: 5 - maximum: 343500) Hz was measured.

Display Response Times

ℹ

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
32 ms ... rise ↗ and fall ↘ combined	↗ 17 ms rise
32 ms ... rise ↗ and fall ↘ combined	↘ 15 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 84 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (20.9 ms).
↔ Response Time 50% Grey to 80% Grey
46 ms ... rise ↗ and fall ↘ combined	↗ 25 ms rise
46 ms ... rise ↗ and fall ↘ combined	↘ 21 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 77 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.8 ms).

AnTuTu v6 - Total Score
Huawei MediaPad M3 8.4 inch	86735 Points +135%
Lenovo Tab 4 8	36893 Points
Lenovo Tab 4 10	36868 Points 0%
Asus ZenPad 8.0 Z380M-6B026A	36440 Points -1%
Amazon Fire HD 8 2017	34714 Points -6%

PCMark for Android
Work performance score
Huawei MediaPad M3 8.4 inch	5204 Points +17%
Lenovo Tab 4 10	4518 Points +1%
Asus ZenPad 8.0 Z380M-6B026A	4507 Points +1%
Lenovo Tab 4 8	4457 Points
Amazon Fire HD 8 2017	4125 Points -7%
Work 2.0 performance score
Lenovo Tab 4 8	3312 Points
Lenovo Tab 4 10	3307 Points 0%
Amazon Fire HD 8 2017	2907 Points -12%

BaseMark OS II
Overall
Huawei MediaPad M3 8.4 inch	1800 Points +126%
Lenovo Tab 4 8	796 Points
Lenovo Tab 4 10	780 Points -2%
Asus ZenPad 8.0 Z380M-6B026A	712 Points -11%
Amazon Fire HD 8 2017	640 Points -20%
System
Huawei MediaPad M3 8.4 inch	3581 Points +142%
Lenovo Tab 4 8	1477 Points
Lenovo Tab 4 10	1475 Points 0%
Asus ZenPad 8.0 Z380M-6B026A	1271 Points -14%
Amazon Fire HD 8 2017	1152 Points -22%
Memory
Huawei MediaPad M3 8.4 inch	2212 Points +182%
Asus ZenPad 8.0 Z380M-6B026A	908 Points +16%
Lenovo Tab 4 8	784 Points
Lenovo Tab 4 10	758 Points -3%
Amazon Fire HD 8 2017	736 Points -6%
Graphics
Huawei MediaPad M3 8.4 inch	1302 Points +191%
Lenovo Tab 4 8	447 Points
Lenovo Tab 4 10	444 Points -1%
Asus ZenPad 8.0 Z380M-6B026A	339 Points -24%
Amazon Fire HD 8 2017	334 Points -25%
Web
Huawei MediaPad M3 8.4 inch	1022 Points +32%
Lenovo Tab 4 8	773 Points
Lenovo Tab 4 10	745 Points -4%
Asus ZenPad 8.0 Z380M-6B026A	655 Points -15%
Amazon Fire HD 8 2017	593 Points -23%

Geekbench 4.4
64 Bit Single-Core Score
Lenovo Tab 4 8	688 Points
Lenovo Tab 4 10	676 Points -2%
Amazon Fire HD 8 2017	628 Points -9%
64 Bit Multi-Core Score
Lenovo Tab 4 8	1908 Points
Lenovo Tab 4 10	1896 Points -1%
Amazon Fire HD 8 2017	1683 Points -12%
Compute RenderScript Score
Lenovo Tab 4 10	1398 Points +6%
Lenovo Tab 4 8	1324 Points

3DMark
1280x720 offscreen Ice Storm Unlimited Score
Huawei MediaPad M3 8.4 inch	20230 Points +229%
Lenovo Tab 4 8	6144 Points
Lenovo Tab 4 10	6100 Points -1%
Asus ZenPad 8.0 Z380M-6B026A	6006 Points -2%
Amazon Fire HD 8 2017	5986 Points -3%
1280x720 offscreen Ice Storm Unlimited Graphics Score
Huawei MediaPad M3 8.4 inch	22141 Points +303%
Lenovo Tab 4 8	5496 Points
Lenovo Tab 4 10	5456 Points -1%
Amazon Fire HD 8 2017	5435 Points -1%
Asus ZenPad 8.0 Z380M-6B026A	5326 Points -3%
1280x720 offscreen Ice Storm Unlimited Physics
Huawei MediaPad M3 8.4 inch	15538 Points +49%
Asus ZenPad 8.0 Z380M-6B026A	10857 Points +4%
Lenovo Tab 4 8	10458 Points
Lenovo Tab 4 10	10388 Points -1%
Amazon Fire HD 8 2017	9274 Points -11%
2560x1440 Sling Shot OpenGL ES 3.0
Huawei MediaPad M3 8.4 inch	1139 Points +2049%
Asus ZenPad 8.0 Z380M-6B026A	246 Points +364%
Amazon Fire HD 8 2017	234 Points +342%
Lenovo Tab 4 8	53 Points
Lenovo Tab 4 10	53 Points 0%
2560x1440 Sling Shot OpenGL ES 3.0 Graphics
Huawei MediaPad M3 8.4 inch	997 Points +2274%
Asus ZenPad 8.0 Z380M-6B026A	203 Points +383%
Amazon Fire HD 8 2017	193 Points +360%
Lenovo Tab 4 8	42 Points
Lenovo Tab 4 10	42 Points 0%
2560x1440 Sling Shot OpenGL ES 3.0 Physics
Huawei MediaPad M3 8.4 inch	2261 Points +159%
Asus ZenPad 8.0 Z380M-6B026A	920 Points +5%
Amazon Fire HD 8 2017	881 Points +1%
Lenovo Tab 4 10	880 Points +1%
Lenovo Tab 4 8	874 Points
2560x1440 Sling Shot Extreme (ES 3.1)
Huawei MediaPad M3 8.4 inch	970 Points
Amazon Fire HD 8 2017	150 Points
Asus ZenPad 8.0 Z380M-6B026A	143 Points
2560x1440 Sling Shot Extreme (ES 3.1) Graphics
Huawei MediaPad M3 8.4 inch	832 Points
Amazon Fire HD 8 2017	121 Points
Asus ZenPad 8.0 Z380M-6B026A	116 Points
2560x1440 Sling Shot Extreme (ES 3.1) Physics
Huawei MediaPad M3 8.4 inch	2322 Points
Amazon Fire HD 8 2017	878 Points
Asus ZenPad 8.0 Z380M-6B026A	793 Points

GFXBench (DX / GLBenchmark) 2.7
T-Rex Onscreen
Huawei MediaPad M3 8.4 inch	23 fps +64%
Asus ZenPad 8.0 Z380M-6B026A	17 fps +21%
Amazon Fire HD 8 2017	17 fps +21%
Lenovo Tab 4 8	14 fps
Lenovo Tab 4 10	13 fps -7%
1920x1080 T-Rex Offscreen
Huawei MediaPad M3 8.4 inch	29 fps +272%
Asus ZenPad 8.0 Z380M-6B026A	10 fps +28%
Amazon Fire HD 8 2017	9.9 fps +27%
Lenovo Tab 4 8	7.8 fps
Lenovo Tab 4 10	7.7 fps -1%

GFXBench 3.0
on screen Manhattan Onscreen OGL
Huawei MediaPad M3 8.4 inch	9 fps +53%
Asus ZenPad 8.0 Z380M-6B026A	7.2 fps +22%
Amazon Fire HD 8 2017	7.1 fps +20%
Lenovo Tab 4 8	5.9 fps
Lenovo Tab 4 10	5.5 fps -7%
1920x1080 1080p Manhattan Offscreen
Huawei MediaPad M3 8.4 inch	13 fps +364%
Asus ZenPad 8.0 Z380M-6B026A	3.6 fps +29%
Amazon Fire HD 8 2017	3.6 fps +29%
Lenovo Tab 4 8	2.8 fps
Lenovo Tab 4 10	2.8 fps 0%

Legend

Lenovo Tab 4 8 Qualcomm Snapdragon 425 (MSM8917), Qualcomm Adreno 308, 16 GB eMMC Flash

Amazon Fire HD 8 2017 MediaTek MT8163 V/B 1.3 GHz, ARM Mali-T720, 16 GB eMMC Flash

Asus ZenPad 8.0 Z380M-6B026A MediaTek MT8163 V/B 1.3 GHz, ARM Mali-T720 MP2, 16 GB eMMC Flash

Huawei MediaPad M3 8.4 inch HiSilicon Kirin 950, ARM Mali-T880 MP4, 32 GB eMMC Flash

Lenovo Tab 4 10 Qualcomm Snapdragon 425 (MSM8917), Qualcomm Adreno 308, 16 GB eMMC Flash

Octane V2 | WebXPRT 2015 | JetStream 1.1 | Mozilla Kraken 1.1

Octane V2 - Total Score
Huawei MediaPad M3 8.4 inch (Chrome 54)	11404 Points +293%
Lenovo Tab 4 10 (Chrome 60)	2955 Points +2%
Lenovo Tab 4 8 (Chrome 61)	2903 Points
Amazon Fire HD 8 2017 (Amazon Silk 58.2.3029.83.10)	2826 Points -3%
Asus ZenPad 8.0 Z380M-6B026A (Chrome 52.0.2743.91)	2821 Points -3%

WebXPRT 2015 - Overall
Huawei MediaPad M3 8.4 inch (Chrome 54)	136 Points +97%
Lenovo Tab 4 8 (Chrome 61)	69 Points
Lenovo Tab 4 10 (Chrome 60)	62 Points -10%
Asus ZenPad 8.0 Z380M-6B026A (Chrome 52.0.2743.91)	57 Points -17%
Amazon Fire HD 8 2017 (Amazon Silk 58.2.3029.83.10)	57 Points -17%

JetStream 1.1 - Total Score
Huawei MediaPad M3 8.4 inch (Chrome 54)	53.7 Points +192%
Amazon Fire HD 8 2017 (Amazon Silk 58.2.3029.83.10)	19.52 Points +6%
Asus ZenPad 8.0 Z380M-6B026A (Chrome 52.0.2743.91)	19.3 Points +5%
Lenovo Tab 4 8 (Chrome 61)	18.36 Points

Mozilla Kraken 1.1 - Total
Lenovo Tab 4 10 (Chrome 60)	12386 ms * -3%
Asus ZenPad 8.0 Z380M-6B026A (Chrome 52.0.2743.91)	12161 ms * -1%
Lenovo Tab 4 8 (Chrome 61)	12033 ms *
Amazon Fire HD 8 2017 (Amazon Silk 58.2.3029.83.10)	11818 ms * +2%
Huawei MediaPad M3 8.4 inch (Chrome 54)	2823 ms * +77%

* ... smaller is better

	Lenovo Tab 4 8	Amazon Fire HD 8 2017	Asus ZenPad 8.0 Z380M-6B026A	Huawei MediaPad M3 8.4 inch	Lenovo Tab 4 10
AndroBench 3-5		-25%	-38%	47%	-6%
Sequential Read 256KB	265.1	159.1 -40%	158.4 -40%	249.7 -6%	275 4%
Sequential Write 256KB	72.3	47.23 -35%	45.71 -37%	117.2 62%	45.3 -37%
Random Read 4KB	44	21.55 -51%	21.96 -50%	32.04 -27%	32.3 -27%
Random Write 4KB	7.1	11.51 62%	8.35 18%	31.35 342%	8.9 25%
Sequential Read 256KB SDCard	84.8	51.1 -40%	35.2 -58%	61.7 ?(Toshiba Exceria Pro M401) -27%	84.5 0%
Sequential Write 256KB SDCard	61.1	34.15 -44%	24.9 -59%	23.52 ?(Toshiba Exceria Pro M401) -62%	59.9 -2%

Asphalt 8: Airborne
	Settings	Value
	high	18 fps
	very low	30 fps

... in comparison

Dead Trigger 2
	Settings	Value
	high	30 fps

... in comparison

Max. Load

Idle


35.8 °C	31.2 °C	34.6 °C
38.5 °C	32.1 °C	35.1 °C
31.8 °C	33.2 °C	35.2 °C

Maximum: 38.5 °C
Average: 34.2 °C


32 °C	32.2 °C	37.7 °C
33 °C	31.8 °C	40.1 °C
32 °C	31.8 °C	36.3 °C

Maximum: 40.1 °C
Average: 34.1 °C

Power Supply (max.) 43.7 °C | Room Temperature 21.6 °C | Voltcraft IR-350

(±) The average temperature for the upper side under maximal load is 34.2 °C / 94 F, compared to the average of 30 °C / 86 F for the devices in the class Tablet.
(+) The maximum temperature on the upper side is 38.5 °C / 101 F, compared to the average of 33.7 °C / 93 F, ranging from 20.7 to 53.2 °C for the class Tablet.
(±) The bottom heats up to a maximum of 40.1 °C / 104 F, compared to the average of 33.2 °C / 92 F
(+) In idle usage, the average temperature for the upper side is 30.9 °C / 88 F, compared to the device average of 30 °C / 86 F.

Lenovo Tab 4 8 audio analysis

(+) | speakers can play relatively loud (84.8 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 18.8% lower than median
(±) | linearity of bass is average (8.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 7.9% higher than median
(±) | linearity of mids is average (7.3% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.7% higher than median
(+) | highs are linear (5.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (24% difference to median)
Compared to same class
» 71% of all tested devices in this class were better, 6% similar, 23% worse
» The best had a delta of 7%, average was 22%, worst was 129%
Compared to all devices tested
» 69% of all tested devices were better, 7% similar, 24% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Asus ZenPad 8.0 Z380M-6B026A audio analysis

(±) | speaker loudness is average but good (75.1 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 28.5% lower than median
(-) | bass is not linear (18.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.9% away from median
(±) | linearity of mids is average (9.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.5% away from median
(+) | highs are linear (5.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (23.9% difference to median)
Compared to same class
» 70% of all tested devices in this class were better, 6% similar, 23% worse
» The best had a delta of 7%, average was 22%, worst was 129%
Compared to all devices tested
» 69% of all tested devices were better, 7% similar, 24% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Power Consumption

Off / Standby	0.12 / 0.16 Watt
Idle	1.1 / 3.51 / 4.14 Watt
Load	4.86 / 6.13 Watt


Key: min: , med: , max: Metrahit Energy

	Lenovo Tab 4 8 4850 mAh	Amazon Fire HD 8 2017 mAh	Asus ZenPad 8.0 Z380M-6B026A 4000 mAh	Huawei MediaPad M3 8.4 inch 5100 mAh	Lenovo Tab 4 10 7000 mAh
Power Consumption		16%	13%	-24%	-3%
Idle Minimum *	1.1	0.99 10%	1.32 -20%	1.51 -37%	1.09 1%
Idle Average *	3.51	2.74 22%	2.71 23%	3.64 -4%	3.71 -6%
Idle Maximum *	4.14	2.83 32%	2.83 32%	3.68 11%	3.84 7%
Load Average *	4.86	4.51 7%	4.24 13%	6.95 -43%	5.07 -4%
Load Maximum *	6.13	5.69 7%	5.01 18%	9.11 -49%	6.88 -12%

* ... smaller is better

Battery Runtime

Idle (without WLAN, min brightness)		20h 07min
WiFi Websurfing		7h 32min
Big Buck Bunny H.264 1080p		10h 03min
Load (maximum brightness)		4h 36min

	Lenovo Tab 4 8 4850 mAh	Amazon Fire HD 8 2017 mAh	Asus ZenPad 8.0 Z380M-6B026A 4000 mAh	Huawei MediaPad M3 8.4 inch 5100 mAh	Lenovo Tab 4 10 7000 mAh
Battery Runtime		51%	5%	2%	40%
Reader / Idle	1207	2032 68%	1305 8%	1110 -8%
H.264	603	744 23%	624 3%	583 -3%
WiFi v1.3	452	770 70%	472 4%	546 21%	632 40%
Load	276	393 42%	287 4%	268 -3%

Pros

+ 机身符合人体工程学设计

+ 优秀的前置扬声器

+ 显示屏明亮而且具有宽广视角

+ 温度较低

+ 带有用户帐户管理功能的纯安卓系统

+ 相当精确的GPS

+ 使用顺畅

+ 快速存储

Cons

- GPS锁定非常慢

- 屏幕偏冷

- 照片有时会模糊

- 没有环境光线传感器

- Wi-Fi慢

Lenovo Tab 4 8. Review unit courtesy of notebooksbilliger.de

联想Tab 4 8是一台价格实惠却又难以脱颖而出的平板电脑。它的设计拘谨保守，外壳容易因为扭曲和压力变形。摄像头解决方案、照相水平、机器性能、拓展性与同类产品类似。

换言之：该机在任何方面都显得普通，却又在许多方面做的很稳健。明亮的显示屏拥有宽广的可视角度。GPS定位系统非常准确。在高负载下，该机也不会过热。它的前置扬声器、纯净的安卓系统、和大容量电池（虽然联想在电池拓容上失败了），都是值得一提的。我们必须强调的是：联想在如何通过可选配置，来提升一个廉价平板上花了很多时间和精力。