联想 B 智能手机简短评测

Name: Lenovo B
Brand: Lenovo

一款联想入门级智能手机。 售价不足100欧元的联想B已经上市。它的定焦相机和TN屏幕可能会让一些用户不太满意，不过至少它支持LTE和可更换电池。我们将通过测试考量这台设备能否与其他低价设备竞争。

Florian Wimmer, ✓ Stefanie Voigt (translated by Yuchen Wang), Published 04/01/2017 🇺🇸 🇩🇪 ...

Android ARM Touchscreen Smartphone

Test device courtesy of notebooksbilliger.de

Download your licensed rating image as PNG / SVG

Lenovo B (Vibe Series)

Processor

Mediatek MT6735M 4 x 1 GHz, Cortex-A53

Graphics adapter

ARM Mali-T720

Memory

1024 MB

Display

4.50 inch 16:9, 854 x 480 pixel 218 PPI, 电容式2点触控屏幕, TN LED, glossy: yes

Storage

8 GB eMMC Flash, 8 GB

, 3.75 GB free

Connections

1 USB 2.0, Audio Connections: 3.5毫米耳机接口, Card Reader: Micro SD读卡器, 最高支持32 GB , Sensors: 加速感应器

Networking

802.11 b/g/n (b/g/n = Wi-Fi 4/), Bluetooth 4.0, GSM (850/900/1800/1900), UMTS (850/900/1900/2100), LTE (B1/B3/B5/B7/B8/B20/B38/B40/B41); Bandwidth (download/upload): 150Mbps/50Mbps (LTE), 21Mbps/5,76Mbps (UMTS); SAR-rate: 1,557 W/kg (Head), 1,714 W/kg, Dual SIM, LTE, GPS

Size

height x width x depth (in mm): 9.9 x 132.5 x 66

Battery

7.6 Wh, 2000 mAh Lithium-Ion, removeable, Talk time 3G (according to manufacturer): 11.3 h, Standby 3G (according to manufacturer): 170 h

Operating System

Android 6.0 Marshmallow

Camera

Primary Camera: 5 MPix LED闪光灯, 定焦镜头
Secondary Camera: 2 MPix 定焦镜头

Additional features

Speakers: 后置单声道扬声器, Keyboard: 触控, 电源适配器，USB数据线, Android 6, 24 Months Warranty, FM收音机, fanless

Weight

144 g, Power Supply: 70 g

Price

100 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

Networking
iperf3 transmit AX12
Lenovo C2 Mali-T720 MP2, MT6735, 8 GB eMMC Flash	53.3 MBit/s +12%
Lenovo Moto E3 Mali-T720, MT6735P, 8 GB eMMC Flash	49.3 MBit/s +3%
Lenovo B Mali-T720, MT6735M, 8 GB eMMC Flash	47.7 MBit/s
iperf3 receive AX12
Lenovo C2 Mali-T720 MP2, MT6735, 8 GB eMMC Flash	50.5 MBit/s +28%
Lenovo Moto E3 Mali-T720, MT6735P, 8 GB eMMC Flash	47 MBit/s +19%
Lenovo B Mali-T720, MT6735M, 8 GB eMMC Flash	39.5 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


297 cd/m²	299 cd/m²	299 cd/m²
300 cd/m²	309 cd/m²	302 cd/m²
302 cd/m²	310 cd/m²	297 cd/m²

Distribution of brightness

tested with X-Rite i1Pro 2

Maximum: 310 cd/m² (Nits) Average: 301.7 cd/m² Minimum: 14.76 cd/m²
Brightness Distribution: 96 %
Center on Battery: 309 cd/m²
Contrast: 672:1 (Black: 0.46 cd/m²)
ΔE Color 9.8 | 0.5-29.43 Ø4.92
ΔE Greyscale 11.5 | 0.5-98 Ø5.2
Gamma: 2.33

	Lenovo B TN LED, 854x480, 4.5"	Archos 50 Platinum 4G IPS, 1280x720, 5"	Huawei Y5 II IPS, 1280x720, 5"	LG K4 TN-TFT, 854x480, 4.5"	Wiko Jerry IPS, 854x480, 5"
Screen		12%	7%	2%	21%
Brightness middle	309	344 11%	465 50%	337 9%	432 40%
Brightness	302	349 16%	443 47%	342 13%	436 44%
Brightness Distribution	96	89 -7%	90 -6%	92 -4%	91 -5%
Black Level *	0.46	0.65 -41%	0.84 -83%	0.44 4%	0.57 -24%
Contrast	672	529 -21%	554 -18%	766 14%	758 13%
Colorchecker dE 2000 *	9.8	5.8 41%	7.8 20%	11.4 -16%	7 29%
Colorchecker dE 2000 max. *	19.7	10.7 46%	15.7 20%	22 -12%	12.4 37%
Greyscale dE 2000 *	11.5	5.7 50%	8.4 27%	11 4%	7.6 34%
Gamma	2.33 ^94%	2.1 ^105%	2.07 ^106%	2.19 ^100%	2.1 ^105%
CCT	12460 ^52%	7792 ^83%	8438 ^77%	9372 ^69%	8368 ^78%

* ... 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 8746 (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	↗ 14 ms rise
32 ms ... rise ↗ and fall ↘ combined	↘ 18 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 (21 ms).
↔ Response Time 50% Grey to 80% Grey
276 ms ... rise ↗ and fall ↘ combined	↗ ms rise
276 ms ... rise ↗ and fall ↘ combined	↘ 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. » 100 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.9 ms).

AnTuTu v6 - Total Score (sort by value)
Lenovo B	23464 Points
Archos 50 Platinum 4G	23657 Points +1%
Huawei Y5 II	23795 Points +1%
LG K4	22998 Points -2%
Wiko Jerry	15185 Points -35%

Geekbench 4.0
64 Bit Single-Core Score (sort by value)
Lenovo B	431 Points
Archos 50 Platinum 4G	428 Points -1%
Huawei Y5 II	561 Points +30%
64 Bit Multi-Core Score (sort by value)
Lenovo B	1209 Points
Archos 50 Platinum 4G	1206 Points 0%
Huawei Y5 II	1573 Points +30%

3DMark
1280x720 offscreen Ice Storm Unlimited Score (sort by value)
Lenovo B	2640 Points
Archos 50 Platinum 4G	3103 Points +18%
Huawei Y5 II	Points -100%
LG K4	2565 Points -3%
Wiko Jerry	2922 Points +11%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
Lenovo B	2239 Points
Archos 50 Platinum 4G	2681 Points +20%
Huawei Y5 II	Points -100%
LG K4	2171 Points -3%
Wiko Jerry	2481 Points +11%
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
Lenovo B	7072 Points
Archos 50 Platinum 4G	6902 Points -2%
Huawei Y5 II	Points -100%
LG K4	7018 Points -1%
Wiko Jerry	7748 Points +10%

GFXBench (DX / GLBenchmark) 2.7
T-Rex Onscreen (sort by value)
Lenovo B	11 fps
Archos 50 Platinum 4G	4.9 fps -55%
Huawei Y5 II	15 fps +36%
LG K4	11 fps 0%
Wiko Jerry	11 fps 0%
1920x1080 T-Rex Offscreen (sort by value)
Lenovo B	4.1 fps
Archos 50 Platinum 4G	8.7 fps +112%
Huawei Y5 II	8.4 fps +105%
LG K4	4.1 fps 0%
Wiko Jerry	4.4 fps +7%

GFXBench 3.0
on screen Manhattan Onscreen OGL (sort by value)
Lenovo B	5.5 fps
Archos 50 Platinum 4G	1.2 fps -78%
Huawei Y5 II	6.1 fps +11%
LG K4	5.8 fps +5%
1920x1080 1080p Manhattan Offscreen (sort by value)
Lenovo B	1.5 fps
Archos 50 Platinum 4G	3.6 fps +140%
Huawei Y5 II	fps -100%
LG K4	1.4 fps -7%

GFXBench 3.1
on screen Manhattan ES 3.1 Onscreen (sort by value)
Lenovo B	4.2 fps
Archos 50 Platinum 4G	1.2 fps -71%
Huawei Y5 II	fps -100%
LG K4	4.1 fps -2%
1920x1080 Manhattan ES 3.1 Offscreen (sort by value)
Lenovo B	1 fps
Archos 50 Platinum 4G	2.7 fps +170%
Huawei Y5 II	fps -100%

PCMark for Android - Work performance score (sort by value)
Lenovo B	2125 Points
Archos 50 Platinum 4G	2807 Points +32%
Huawei Y5 II	3237 Points +52%
LG K4	2644 Points +24%
Wiko Jerry	2636 Points +24%

BaseMark OS II
Overall (sort by value)
Lenovo B	136 Points
Archos 50 Platinum 4G	148 Points +9%
Huawei Y5 II	183 Points +35%
LG K4	304 Points +124%
Wiko Jerry	379 Points +179%
System (sort by value)
Lenovo B	799 Points
Archos 50 Platinum 4G	838 Points +5%
Huawei Y5 II	1094 Points +37%
LG K4	816 Points +2%
Wiko Jerry	966 Points +21%
Memory (sort by value)
Lenovo B	311 Points
Archos 50 Platinum 4G	354 Points +14%
Huawei Y5 II	375 Points +21%
LG K4	139 Points -55%
Wiko Jerry	290 Points -7%
Graphics (sort by value)
Lenovo B	145 Points
Archos 50 Platinum 4G	175 Points +21%
Huawei Y5 II	283 Points +95%
LG K4	141 Points -3%
Wiko Jerry	139 Points -4%
Web (sort by value)
Lenovo B	9 Points
Archos 50 Platinum 4G	9 Points 0%
Huawei Y5 II	10 Points +11%
LG K4	536 Points +5856%
Wiko Jerry	530 Points +5789%

Legend

Lenovo B Mediatek MT6735M, ARM Mali-T720, 8 GB eMMC Flash

Archos 50 Platinum 4G Mediatek MT6735, ARM Mali-T720, 8 GB eMMC Flash

Huawei Y5 II Mediatek MT6735, ARM Mali-T720 MP2, 8 GB eMMC Flash

LG K4 Mediatek MT6735, ARM Mali-T720, 8 GB eMMC Flash

Wiko Jerry Mediatek MT6580M, ARM Mali-400 MP2, 16 GB eMMC Flash

Mozilla Kraken 1.1 | Octane V2 | JetStream 1.1

Mozilla Kraken 1.1 - Total (sort by value)
Lenovo B	18130 ms *
Archos 50 Platinum 4G	19092 ms * -5%
Huawei Y5 II	12505 ms * +31%
LG K4	18214 ms * -0%
Wiko Jerry	14923 ms * +18%

Octane V2 - Total Score (sort by value)
Lenovo B	1929 Points
Archos 50 Platinum 4G	2122 Points +10%
Huawei Y5 II	2707 Points +40%
LG K4	2049 Points +6%
Wiko Jerry	2075 Points +8%

JetStream 1.1 - Total Score (sort by value)
Lenovo B	12.64 Points
Archos 50 Platinum 4G	12.76 Points +1%
Huawei Y5 II	18.47 Points +46%
LG K4	13 Points +3%
Wiko Jerry	14 Points +11%

* ... smaller is better

AndroBench 3-5
Sequential Read 256KB (sort by value)
Lenovo B	115.6 MB/s
Archos 50 Platinum 4G	125.4 MB/s +8%
Huawei Y5 II	173.3 MB/s +50%
LG K4	120.8 MB/s +4%
Wiko Jerry	132.8 MB/s +15%
Sequential Write 256KB (sort by value)
Lenovo B	8.1 MB/s
Archos 50 Platinum 4G	7.56 MB/s -7%
Huawei Y5 II	21.6 MB/s +167%
LG K4	8.07 MB/s 0%
Wiko Jerry	12.11 MB/s +50%
Random Read 4KB (sort by value)
Lenovo B	12.4 MB/s
Archos 50 Platinum 4G	14.31 MB/s +15%
Huawei Y5 II	27.3 MB/s +120%
LG K4	16.05 MB/s +29%
Wiko Jerry	14.97 MB/s +21%
Random Write 4KB (sort by value)
Lenovo B	4.2 MB/s
Archos 50 Platinum 4G	4.35 MB/s +4%
Huawei Y5 II	6 MB/s +43%
LG K4	4.97 MB/s +18%
Wiko Jerry	6.4 MB/s +52%
Sequential Read 256KB SDCard (sort by value)
Lenovo B	24.16 MB/s
Archos 50 Platinum 4G	31.85 MB/s +32%
Huawei Y5 II	29.47 MB/s +22%
LG K4	28.52 MB/s +18%
Wiko Jerry	40.91 MB/s +69%
Sequential Write 256KB SDCard (sort by value)
Lenovo B	16.8 MB/s
Archos 50 Platinum 4G	15.58 MB/s -7%
Huawei Y5 II	18.03 MB/s +7%
LG K4	18.7 MB/s +11%
Wiko Jerry	19.12 MB/s +14%

Asphalt 8: Airborne
	Settings	Value
	high	10 fps

... in comparison

Temple Run 2
	Settings	Value
	default	59 fps

... in comparison

Max. Load

Idle


35.3 °C	35.6 °C	33.9 °C
35 °C	34.5 °C	38.5 °C
34.3 °C	34.4 °C	36.3 °C

Maximum: 38.5 °C
Average: 35.3 °C


33.6 °C	35.3 °C	36.3 °C
33.6 °C	34.9 °C	36.6 °C
30.7 °C	34.5 °C	35.9 °C

Maximum: 36.6 °C
Average: 34.6 °C

Power Supply (max.) 29.4 °C | Room Temperature 21.4 °C | Voltcraft IR-260

(±) The average temperature for the upper side under maximal load is 35.3 °C / 96 F, compared to the average of 32.8 °C / 91 F for the devices in the class Smartphone.
(+) The maximum temperature on the upper side is 38.5 °C / 101 F, compared to the average of 35.1 °C / 95 F, ranging from 21.9 to 63.2 °C for the class Smartphone.
(+) The bottom heats up to a maximum of 36.6 °C / 98 F, compared to the average of 33.9 °C / 93 F
(±) In idle usage, the average temperature for the upper side is 32.7 °C / 91 F, compared to the device average of 32.8 °C / 91 F.

Lenovo B audio analysis

(+) | speakers can play relatively loud (82.3 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 28.8% lower than median
(±) | linearity of bass is average (10.9% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 8.6% higher than median
(±) | linearity of mids is average (8.7% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.7% away from median
(+) | highs are linear (6% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (31% difference to median)
Compared to same class
» 78% of all tested devices in this class were better, 4% similar, 19% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 88% of all tested devices were better, 3% similar, 9% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Huawei Y5 II audio analysis

(+) | speakers can play relatively loud (87 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 29.4% lower than median
(±) | linearity of bass is average (9% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 7.3% higher than median
(±) | linearity of mids is average (10.1% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 13% higher than median
(+) | highs are linear (5.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (34% difference to median)
Compared to same class
» 82% of all tested devices in this class were better, 1% similar, 16% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 92% of all tested devices were better, 1% similar, 7% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Power Consumption

Off / Standby	0.05 / 0.12 Watt
Idle	0.64 / 0.96 / 1.33 Watt
Load	4.59 / 4.63 Watt


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

	Lenovo B 2000 mAh	Archos 50 Platinum 4G 2200 mAh	Huawei Y5 II 2200 mAh	LG K4 1940 mAh	Wiko Jerry 2000 mAh
Power Consumption		-17%	-10%	-25%	-46%
Idle Minimum *	0.64	0.59 8%	0.54 16%	1.15 -80%	0.8 -25%
Idle Average *	0.96	1.68 -75%	1.58 -65%	1.76 -83%	2.02 -110%
Idle Maximum *	1.33	1.79 -35%	1.7 -28%	1.82 -37%	2.19 -65%
Load Average *	4.59	4.22 8%	2.98 35%	2.71 41%	5.02 -9%
Load Maximum *	4.63	4.26 8%	4.98 -8%	3.15 32%	5.52 -19%

* ... smaller is better

Battery Runtime

WiFi Websurfing

7h 22min

	Lenovo B 2000 mAh	Archos 50 Platinum 4G 2200 mAh	Huawei Y5 II 2200 mAh	LG K4 1940 mAh	Wiko Jerry 2000 mAh
Battery Runtime		-13%	14%	2%	7%
WiFi v1.3	442	384 -13%	503 14%	452 2%	475 7%
Reader / Idle			1102
Load			253

Pros

+ 符合人体工学设计的机身

+ 可更换电池

+ 不错的扬声器

+ 可以接受的通话音质

+ 响应迅速的GPS模组

+ 支持LTE

Cons

- 色彩偏蓝的低品质TN屏幕

- 有限的可视角度范围

- 较差的相机

- 性能较低

- 充电用时长

Lenovo B smartphone. Test device made available by Notebooksbilliger.de

这款设备拿在手上不久你就会意识到它不足100欧元（约734人民币）的低廉手机没有给联想多少为它搭配高品质部件的空间。不过，选择一块色彩偏蓝的低对比度TN屏幕和拍摄效果模糊的相机让我们感觉十分难以接受，即使是实惠型设备也不应如此差。联想B的性能表现和同类设备十分相近，电池续航也中规中矩，不过它的电池可以方便地更换。但是它的较长充电用时也不能算是个优势。

尽管对于入门级设备的期待和需求都比较低，但是市场上一些其他设备却提供了更高的性价比：更大容量的闪存，更好的相机和屏幕。联想B的小巧尺寸可能会让它适合青少年。尽管它的表现中规中矩，但在同类产品中无法脱颖而出。

注：本文是基于完整评测的缩减版本，阅读完整的英文评测，请点击这里。

Lenovo B - 03/18/2017 v6 ^(old)
Florian Wimmer

Chassis

71%

Keyboard

61 / 75 → 82%

Pointing Device

79%

Connectivity

30 / 60 → 49%

Weight