Gretel A9 智能手机简短评测

Name: Gretel A9
Brand: Gretel

不足100美元的iPhone？ Gretel A9的设计原型显而易见：Apple的iPhone。甚至连操作系统都让我们不禁联想到iOS，和它的模版相似的是，A9也有玫瑰金的型号。实际上这种设计上的抄袭完全没有必要，因为A9以不足100美元的售价提供了丰富的功能。如果它的相机不是那么差的话。。

Florian Wimmer, 👁 Daniel Schmidt, ✓ Stefanie Voigt (translated by Yuchen Wang), Published 06/17/2017 🇺🇸 🇩🇪 ...

Android ARM Smartphone Touchscreen

Test device courtesy of Gretel

Download your licensed rating image as PNG / SVG

Gretel A9

Processor

Mediatek MT6737 4 x 1.3 GHz, Cortex-A53

Graphics adapter

ARM Mali-T720 MP2

Memory

2048 MB

Display

5.00 inch 16:9, 1280 x 720 pixel 294 PPI, 电容式触控屏幕, IPS, glossy: yes

Storage

16 GB eMMC Flash, 16 GB

, 10.49 GB free

Connections

1 USB 2.0, Audio Connections: 3.5毫米耳机接口, Card Reader: MicroSD 最高支持32 GB, 1 Fingerprint Reader, Brightness Sensor, Sensors: 加速感应器，近距感应器, USB-OTG

Networking

802.11 b/g/n (b/g/n = Wi-Fi 4/), Bluetooth 4.0, GSM (850/900/1,800/2,100), UMTS (900/2,100), LTE (B1/B3/B7/B8/B20/B40); Cat. 4 LTE (最高传输速率: 150/50 MBit/s 下载／上传), Dual SIM, LTE, GPS

Size

height x width x depth (in mm): 8.7 x 146.6 x 72.8

Battery

8.7 Wh, 2300 mAh Lithium-Polymer

Operating System

Android 6.0 Marshmallow

Camera

Primary Camera: 8 MPix 插值最高1300万像素，对比自动对焦，LED闪光灯
Secondary Camera: 2 MPix 插值最高500万像素，LED闪光灯

Additional features

Speakers: 后置麦克风, Keyboard: 触控, 电源适配器，USB数据线，SIM卡工具, Theme Club, WeChat, 24 Months Warranty, fanless

Weight

166 g, Power Supply: 46 g

Price

89 Euro

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 +4%
Gretel A9 Mali-T720 MP2, MT6737, 16 GB eMMC Flash	51.4 MBit/s
Blackview R6 Mali-T720 MP2, MT6737T, 32 GB eMMC Flash	49.6 MBit/s -4%
ZTE Blade A510 Mali-T720, MT6735P, 8 GB eMMC Flash	47.9 MBit/s -7%
iperf3 receive AX12
Lenovo C2 Mali-T720 MP2, MT6735, 8 GB eMMC Flash	50.5 MBit/s +19%
ZTE Blade A510 Mali-T720, MT6735P, 8 GB eMMC Flash	48.7 MBit/s +15%
Gretel A9 Mali-T720 MP2, MT6737, 16 GB eMMC Flash	42.3 MBit/s
Blackview R6 Mali-T720 MP2, MT6737T, 32 GB eMMC Flash	41.9 MBit/s -1%

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


348 cd/m²	369 cd/m²	372 cd/m²
358 cd/m²	380 cd/m²	387 cd/m²
359 cd/m²	371 cd/m²	386 cd/m²

Distribution of brightness

tested with X-Rite i1Pro 2

Maximum: 387 cd/m² (Nits) Average: 370 cd/m² Minimum: 15.05 cd/m²
Brightness Distribution: 90 %
Center on Battery: 380 cd/m²
Contrast: 974:1 (Black: 0.39 cd/m²)
ΔE Color 8 | 0.5-29.43 Ø4.92
ΔE Greyscale 8.5 | 0.5-98 Ø5.2
Gamma: 2.8

	Gretel A9 IPS, 1280x720, 5"	Blackview R6 IPS, 1920x1080, 5.5"	Archos 50 Platinum 4G IPS, 1280x720, 5"	Lenovo C2 IPS, 1280x720, 5"	ZTE Blade A510 IPS, 1280x720, 5"
Screen		-4%	-6%	16%	15%
Brightness middle	380	352 -7%	344 -9%	458 21%	528 39%
Brightness	370	320 -14%	349 -6%	449 21%	524 42%
Brightness Distribution	90	81 -10%	89 -1%	92 2%	94 4%
Black Level *	0.39	0.3 23%	0.65 -67%	0.35 10%	0.62 -59%
Contrast	974	1173 20%	529 -46%	1309 34%	852 -13%
Colorchecker dE 2000 *	8	8.7 -9%	5.8 27%	6.5 19%	5.2 35%
Colorchecker dE 2000 max. *	13.6	15.1 -11%	10.7 21%	11.7 14%	8.7 36%
Greyscale dE 2000 *	8.5	10.5 -24%	5.7 33%	7.7 9%	5.7 33%
Gamma	2.8 ^79%	2.04 ^108%	2.1 ^105%	2.15 ^102%	1.99 ^111%
CCT	8337 ^78%	8529 ^76%	7792 ^83%	8518 ^76%	6631 ^98%

* ... 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 8743 (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
26.4 ms ... rise ↗ and fall ↘ combined	↗ 17.2 ms rise
26.4 ms ... rise ↗ and fall ↘ combined	↘ 9.2 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 0.1 (minimum) to 240 (maximum) ms. » 62 % 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
32.4 ms ... rise ↗ and fall ↘ combined	↗ 17.6 ms rise
32.4 ms ... rise ↗ and fall ↘ combined	↘ 14.8 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. » 40 % of all devices are better. This means that the measured response time is similar to the average of all tested devices (32.9 ms).

AnTuTu v6 - Total Score (sort by value)
Gretel A9	29237 Points
Archos 50 Platinum 4G	23657 Points -19%
Blackview R6	38038 Points +30%
Lenovo C2	23825 Points -19%
ZTE Blade A510	24338 Points -17%

3DMark
1280x720 offscreen Ice Storm Unlimited Score (sort by value)
Gretel A9	3744 Points
Archos 50 Platinum 4G	3103 Points -17%
Blackview R6	5731 Points +53%
Lenovo C2	Points -100%
ZTE Blade A510	3109 Points -17%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
Gretel A9	3235 Points
Archos 50 Platinum 4G	2681 Points -17%
Blackview R6	5380 Points +66%
ZTE Blade A510	2682 Points -17%
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
Gretel A9	8339 Points
Archos 50 Platinum 4G	6902 Points -17%
Blackview R6	7424 Points -11%
ZTE Blade A510	7025 Points -16%
2560x1440 Sling Shot OpenGL ES 3.0 (sort by value)
Gretel A9	152 Points
Blackview R6	258 Points +70%
Lenovo C2	Points -100%
2560x1440 Sling Shot OpenGL ES 3.0 Graphics (sort by value)
Gretel A9	124 Points
Blackview R6	217 Points +75%
2560x1440 Sling Shot OpenGL ES 3.0 Physics (sort by value)
Gretel A9	759 Points
Blackview R6	762 Points 0%
2560x1440 Sling Shot Extreme (ES 3.1) (sort by value)
Gretel A9	102 Points
Blackview R6	169 Points +66%
Lenovo C2	Points -100%
2560x1440 Sling Shot Extreme (ES 3.1) Graphics (sort by value)
Gretel A9	82 Points
Blackview R6	138 Points +68%
2560x1440 Sling Shot Extreme (ES 3.1) Physics (sort by value)
Gretel A9	763 Points
Blackview R6	814 Points +7%

GFXBench (DX / GLBenchmark) 2.7
T-Rex Onscreen (sort by value)
Gretel A9	10 fps
Archos 50 Platinum 4G	4.9 fps -51%
Blackview R6	9.7 fps -3%
Lenovo C2	8.5 fps -15%
ZTE Blade A510	8.5 fps -15%
1920x1080 T-Rex Offscreen (sort by value)
Gretel A9	6 fps
Archos 50 Platinum 4G	8.7 fps +45%
Blackview R6	9.8 fps +63%
Lenovo C2	5 fps -17%
ZTE Blade A510	4.9 fps -18%

GFXBench 3.0
on screen Manhattan Onscreen OGL (sort by value)
Gretel A9	4.5 fps
Archos 50 Platinum 4G	1.2 fps -73%
Blackview R6	4 fps -11%
Lenovo C2	3.7 fps -18%
ZTE Blade A510	3.5 fps -22%
1920x1080 1080p Manhattan Offscreen (sort by value)
Gretel A9	2.2 fps
Archos 50 Platinum 4G	3.6 fps +64%
Blackview R6	4 fps +82%
Lenovo C2	fps -100%

GFXBench 3.1
on screen Manhattan ES 3.1 Onscreen (sort by value)
Gretel A9	3.2 fps
Archos 50 Platinum 4G	1.2 fps -62%
Blackview R6	2.6 fps -19%
Lenovo C2	2.7 fps -16%
ZTE Blade A510	2.5 fps -22%
1920x1080 Manhattan ES 3.1 Offscreen (sort by value)
Gretel A9	1.4 fps
Archos 50 Platinum 4G	2.7 fps +93%
Blackview R6	2.5 fps +79%
Lenovo C2	1.2 fps -14%
ZTE Blade A510	1.1 fps -21%

PCMark for Android
Work performance score (sort by value)
Gretel A9	3293 Points
Archos 50 Platinum 4G	2807 Points -15%
Blackview R6	2759 Points -16%
Lenovo C2	1908 Points -42%
ZTE Blade A510	2675 Points -19%
Work 2.0 performance score (sort by value)
Gretel A9	2436 Points
ZTE Blade A510	2109 Points -13%

BaseMark OS II
Overall (sort by value)
Gretel A9	176 Points
Archos 50 Platinum 4G	148 Points -16%
Blackview R6	177 Points +1%
Lenovo C2	147 Points -16%
ZTE Blade A510	141 Points -20%
System (sort by value)
Gretel A9	1030 Points
Archos 50 Platinum 4G	838 Points -19%
Blackview R6	562 Points -45%
Lenovo C2	826 Points -20%
ZTE Blade A510	829 Points -20%
Memory (sort by value)
Gretel A9	468 Points
Archos 50 Platinum 4G	354 Points -24%
Blackview R6	472 Points +1%
Lenovo C2	332 Points -29%
ZTE Blade A510	285 Points -39%
Graphics (sort by value)
Gretel A9	209 Points
Archos 50 Platinum 4G	175 Points -16%
Blackview R6	383 Points +83%
Lenovo C2	177 Points -15%
ZTE Blade A510	174 Points -17%
Web (sort by value)
Gretel A9	10 Points
Archos 50 Platinum 4G	9 Points -10%
Blackview R6	10 Points 0%
Lenovo C2	9 Points -10%
ZTE Blade A510	10 Points 0%

Geekbench 4.4
64 Bit Single-Core Score (sort by value)
Gretel A9	537 Points
64 Bit Multi-Core Score (sort by value)
Gretel A9	1468 Points
Compute RenderScript Score (sort by value)
Gretel A9	938 Points

Legend

Gretel A9 Mediatek MT6737, ARM Mali-T720 MP2, 16 GB eMMC Flash

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

Blackview R6 Mediatek MT6737T, ARM Mali-T720 MP2, 32 GB eMMC Flash

Lenovo C2 Mediatek MT6735, ARM Mali-T720 MP2, 8 GB eMMC Flash

ZTE Blade A510 Mediatek MT6735P, ARM Mali-T720, 8 GB eMMC Flash

Octane V2 | Mozilla Kraken 1.1 | JetStream 1.1

Octane V2 - Total Score (sort by value)
Gretel A9	2392 Points
Archos 50 Platinum 4G	2122 Points -11%
Blackview R6	3195 Points +34%
Lenovo C2	2159 Points -10%
ZTE Blade A510	2102 Points -12%

Mozilla Kraken 1.1 - Total (sort by value)
Gretel A9	15146 ms *
Archos 50 Platinum 4G	19092 ms * -26%
Blackview R6	11227 ms * +26%
Lenovo C2	16585 ms * -10%
ZTE Blade A510	17364 ms * -15%

JetStream 1.1 - Total Score (sort by value)
Gretel A9	16.2 Points
Archos 50 Platinum 4G	12.76 Points -21%
Blackview R6	21.9 Points +35%
Lenovo C2	13.5 Points -17%
ZTE Blade A510	12.78 Points -21%

* ... smaller is better

AndroBench 3-5
Sequential Read 256KB (sort by value)
Gretel A9	176.2 MB/s
Archos 50 Platinum 4G	125.4 MB/s -29%
Blackview R6	228 MB/s +29%
Lenovo C2	120.7 MB/s -31%
ZTE Blade A510	111.9 MB/s -36%
Sequential Write 256KB (sort by value)
Gretel A9	44.5 MB/s
Archos 50 Platinum 4G	7.56 MB/s -83%
Blackview R6	76.1 MB/s +71%
Lenovo C2	8 MB/s -82%
ZTE Blade A510	9.94 MB/s -78%
Random Read 4KB (sort by value)
Gretel A9	18.1 MB/s
Archos 50 Platinum 4G	14.31 MB/s -21%
Blackview R6	18.73 MB/s +3%
Lenovo C2	14.5 MB/s -20%
ZTE Blade A510	14.03 MB/s -22%
Random Write 4KB (sort by value)
Gretel A9	10.1 MB/s
Archos 50 Platinum 4G	4.35 MB/s -57%
Blackview R6	13.5 MB/s +34%
Lenovo C2	4.7 MB/s -53%
ZTE Blade A510	4.69 MB/s -54%
Sequential Read 256KB SDCard (sort by value)
Gretel A9	23.83 MB/s
Archos 50 Platinum 4G	31.85 MB/s +34%
Blackview R6	22.74 MB/s -5%
Lenovo C2	24.2 MB/s +2%
ZTE Blade A510	25.55 MB/s +7%
Sequential Write 256KB SDCard (sort by value)
Gretel A9	14.81 MB/s
Archos 50 Platinum 4G	15.58 MB/s +5%
Blackview R6	9.34 MB/s -37%
Lenovo C2	16.1 MB/s +9%
ZTE Blade A510	16.5 MB/s +11%

Max. Load

Idle


41 °C	39.4 °C	39.5 °C
43.4 °C	40.4 °C	39.6 °C
42 °C	42.2 °C	39.5 °C

Maximum: 43.4 °C
Average: 40.8 °C


37 °C	37.5 °C	38.7 °C
37.3 °C	37.9 °C	39.2 °C
36.9 °C	38.2 °C	39.2 °C

Maximum: 39.2 °C
Average: 38 °C

Power Supply (max.) 37.5 °C | Room Temperature 21.5 °C | Voltcraft IR-260

(-) The average temperature for the upper side under maximal load is 40.8 °C / 105 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 43.4 °C / 110 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 39.2 °C / 103 F, compared to the average of 33.9 °C / 93 F
(±) In idle usage, the average temperature for the upper side is 34.7 °C / 94 F, compared to the device average of 32.8 °C / 91 F.

Gretel A9 audio analysis

(±) | speaker loudness is average but good (79 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 24.3% lower than median
(±) | linearity of bass is average (8.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 10.5% higher than median
(±) | linearity of mids is average (12.2% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.6% higher than median
(+) | highs are linear (6.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (35% difference to median)
Compared to same class
» 83% 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, 6% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Lenovo C2 audio analysis

(±) | speaker loudness is average but good (80.1 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 34.3% lower than median
(±) | linearity of bass is average (8.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | reduced mids - on average 6% lower than median
(±) | linearity of mids is average (7.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.1% away from median
(+) | highs are linear (2.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (25.9% difference to median)
Compared to same class
» 62% of all tested devices in this class were better, 7% similar, 32% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 77% of all tested devices were better, 5% similar, 18% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Power Consumption

Off / Standby	0.01 / 0.22 Watt
Idle	0.77 / 1.99 / 2.2 Watt
Load	4.99 / 5.14 Watt


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

	Gretel A9 2300 mAh	Archos 50 Platinum 4G 2200 mAh	Blackview R6 3000 mAh	Lenovo C2 2750 mAh	ZTE Blade A510 2200 mAh
Power Consumption		18%	-12%	24%	12%
Idle Minimum *	0.77	0.59 23%	0.78 -1%	0.71 8%	0.61 21%
Idle Average *	1.99	1.68 16%	1.63 18%	1.62 19%	1.75 12%
Idle Maximum *	2.2	1.79 19%	1.84 16%	1.64 25%	1.83 17%
Load Average *	4.99	4.22 15%	7.47 -50%	3.24 35%	4.49 10%
Load Maximum *	5.14	4.26 17%	7.47 -45%	3.36 35%	5.14 -0%

* ... smaller is better

Battery Runtime

WiFi Websurfing		7h 38min
Load (maximum brightness)		2h 54min

	Gretel A9 2300 mAh	Archos 50 Platinum 4G 2200 mAh	Blackview R6 3000 mAh	Lenovo C2 2750 mAh	ZTE Blade A510 2200 mAh
Battery Runtime		-16%	25%	55%	-9%
WiFi v1.3	458	384 -16%	604 32%	662 45%	416 -9%
Load	174		203 17%	287 65%

Pros

+ 相对坚固的机身

+ 金属外壳

+ 不错的软件功能

+ 不错的无线模组速度

+ 附赠保护壳

+ 高对比度屏幕...

+ ...支持自定义选项

+ 不错的性能

+ 快速大容量存储

+ 不粗哦的电池续航

+ 性价比高

+ 指纹感应器

Cons

- SIM卡槽品质低

- 用户界面需要一段时间适应

- 质保信息不明确

- 相机品质差

- 发热量大

- 不适合游戏

In Review: Gretal A9. Review unit courtesy of Gretel.

Gretel在Notebookcheck上的第一次登场带来了十分有趣的结论。A9是一台不错的入门级智能手机，它提供了同类机型所缺少的一些功能，如内置指纹感应器和大容量闪存。同时虽然不是最优秀的，但它不错的屏幕依然可以通过MiraVision功能得到自定义和改进。它的运算性能中规中矩，但图形性能并不出色：A9不是为游戏所设计的。它的扬声器音量较小，不过并不算最差的，电池续航也说得过去。普通日常使用它应该可以坚持一两天的时间。

不过仍然还有一个没有得到回答的问题：这样一台不足80美元的手机的缺点又在哪里呢？它最大的问题是出在相机上。差值运算成像已经应该是过去的技术了，而它的前置200万像素相机完全无法拍摄正常效果的照片。除了光线很好的情况之外它的相机都几乎无法使用，而视频拍摄也只支持720p分辨率。尽管它的机身品质缺陷在这个价位上司空见惯，但这样的相机可能对于大部分用户来说都无法接受。

入门级的Gretel A9在不足80美元的价位上提供了丰富的功能——指纹感应器，大容量闪存，相对优秀的性能。但低品质的相机可能会让很多用户望而却步。

作为一台仅仅80美元的智能手机，Gretel A9依然十分不错，比同类设备带来了更多的功能，也值得消费者考虑。

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。

Gretel A9 - 06/12/2017 v6 ^(old)
Florian Wimmer

Chassis

80%

Keyboard

65 / 75 → 87%

Pointing Device

87%

Connectivity

36 / 60 → 60%