三星 Galaxy Tab A 7.0 (2016) 平板电脑简短评测
Samsung Galaxy Tab A7 2016 (Galaxy Tab A Series)
Processor
Spreadtrum SC7731 4 x 1.3 GHz, Cortex-A7
Graphics adapter
ARM Mali-400 MP2
Memory
1536 MB
Display
7.00 inch 16:10, 1280 x 800 pixel 216 PPI, 电容式, IPS, glossy: yes
Storage
8 GB eMMC Flash, 8 GB
, 4.35 GB free
Weight
283 g, Power Supply: 44 g
Price
170 EUR
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.
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tested with X-Rite i1Pro 2
Maximum: 358 cd/m² (Nits) Average: 344 cd/m² Minimum: 1.14 cd/m²Brightness Distribution: 92 %
Center on Battery: 358 cd/m²
Contrast: 968:1 (Black: 0.37 cd/m²)
ΔE Color 5.3 | 0.5-29.43 Ø4.92
ΔE Greyscale 4.7 | 0.5-98 Ø5.2
Gamma: 2.44
| Samsung Galaxy Tab A7 2016 1.280 x 800 px 7.0'' (IPS) | Huawei MediaPad T1 8.0 LTE 1.280 x 800 px 8.0'' (IPS) | Amazon Fire Kids Edition Late 2015 1.024 x 600 px 7.0'' (IPS) | Acer Iconia One 8 1.280 x 800 px 8.0'' (IPS) | Lenovo Miix 3 8 1.024 x 768 px 7.85'' (IPS) | Samsung Galaxy Tab E (9.6, Wi-Fi) 1.280 x 800 px 9.6'' (IPS) | |
|---|---|---|---|---|---|---|
| Screen | ||||||
| Brightness middle | 358 | 324 -9% | 337 -6% | 367 3% | 298 -17% | 457 28% |
| Brightness | 344 | 301 -12% | 313 -9% | 338 -2% | 289 -16% | 453 32% |
| Brightness Distribution | 92 | 87 -5% | 84 -9% | 83 -10% | 92 0% | 87 -5% |
| Black Level * | 0.37 | 0.39 -5% | 0.63 -70% | 0.31 16% | 0.33 11% | 0.49 -32% |
| Contrast | 968 | 831 -14% | 535 -45% | 1184 22% | 903 -7% | 933 -4% |
| Colorchecker dE 2000 * | 5.3 | 5.96 -12% | 8.47 -60% | 4.1 23% | 5.7 -8% | 5.75 -8% |
| Colorchecker dE 2000 max. * | 20.2 | |||||
| Greyscale dE 2000 * | 4.7 | 5.33 -13% | 9.98 -112% | 4.38 7% | 5.62 -20% | 5.33 -13% |
| Gamma | 2.44 90% | 2.19 100% | 2.33 94% | 2.33 94% | 2.28 96% | 2.61 84% |
| CCT | 7222 90% | 7184 90% | 6902 94% | 6394 102% | 7309 89% | 6820 95% |
| Color Space (Percent of AdobeRGB 1998) | 44 |
* ... 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 | ||
|---|---|---|
| 38 ms ... rise ↗ and fall ↘ combined | ↗ 22 ms rise |  |
| ↘ 16 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. » 95 % 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 | ||
| 69 ms ... rise ↗ and fall ↘ combined | ↗ 45 ms rise |  |
| ↘ 24 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. » 98 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.9 ms). | ||
| PCMark for Android - Work performance score (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Acer Iconia One 8 | |
| Samsung Galaxy Tab E (9.6, Wi-Fi) | |
| AnTuTu v6 - Total Score (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Amazon Fire Kids Edition Late 2015 | |
| Samsung Galaxy Tab E (9.6, Wi-Fi) | |
| Octane V2 - Total Score (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Huawei MediaPad T1 8.0 LTE | |
| Amazon Fire Kids Edition Late 2015 | |
| Acer Iconia One 8 | |
| Samsung Galaxy Tab E (9.6, Wi-Fi) | |
| Mozilla Kraken 1.1 - Total (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Huawei MediaPad T1 8.0 LTE | |
| Amazon Fire Kids Edition Late 2015 | |
| Acer Iconia One 8 | |
| Samsung Galaxy Tab E (9.6, Wi-Fi) | |
| WebXPRT 2015 - Overall (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Acer Iconia One 8 | |
| Samsung Galaxy Tab E (9.6, Wi-Fi) | |
| JetStream 1.1 - Total Score (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Amazon Fire Kids Edition Late 2015 | |
* ... smaller is better
| AndroBench 3-5 | |
| Random Write 4KB (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Amazon Fire Kids Edition Late 2015 | |
| Acer Iconia One 8 | |
| Random Read 4KB (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Amazon Fire Kids Edition Late 2015 | |
| Acer Iconia One 8 | |
| Sequential Write 256KB (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Amazon Fire Kids Edition Late 2015 | |
| Acer Iconia One 8 | |
| Sequential Read 256KB (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Amazon Fire Kids Edition Late 2015 | |
| Acer Iconia One 8 | |
| BaseMark OS II - Memory (sort by value) | |
| Samsung Galaxy Tab A7 2016 | |
| Amazon Fire Kids Edition Late 2015 | |
| Acer Iconia One 8 | |
| Samsung Galaxy Tab E (9.6, Wi-Fi) | |
| Asphalt 8: Airborne | |||
| Settings | Value | ||
| high | 14 fps | ||
| very low | 23 fps | ||
| Real Racing 3 | |||
| Settings | Value | ||
| high | 21 fps | ||
| low | 50 fps | ||
(±) The average temperature for the upper side under maximal load is 34.3 °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 39.9 °C / 104 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 38.8 °C / 102 F, compared to the average of 33.2 °C / 92 F
(+) In idle usage, the average temperature for the upper side is 31.5 °C / 89 F, compared to the device average of 30 °C / 86 F.
(+) The maximum temperature on the upper side is 39.9 °C / 104 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 38.8 °C / 102 F, compared to the average of 33.2 °C / 92 F
(+) In idle usage, the average temperature for the upper side is 31.5 °C / 89 F, compared to the device average of 30 °C / 86 F.
Power Consumption
| Off / Standby |   0.02 / 0.1 Watt |
| Idle |  1.91 / 3.59 / 4.06 Watt |
| Load |
4.29 / 4.31 Watt |
    
| |
Key:
min: ,
med: ,
max: Gossen Metrahit Energy | |
| Samsung Galaxy Tab A7 2016 Mali-400 MP2, SC7731, 8 GB eMMC Flash | Huawei MediaPad T1 8.0 LTE Adreno 306, 410 MSM8916, 16 GB eMMC Flash | Amazon Fire Kids Edition Late 2015 Mali-450 MP4, MT8127, 8 GB eMMC Flash | Acer Iconia One 8 HD Graphics (Bay Trail), Z3735G, 16 GB eMMC Flash | Lenovo Miix 3 8 HD Graphics (Bay Trail), Z3735F, 32 GB eMMC Flash | Samsung Galaxy Tab E (9.6, Wi-Fi) Mali-400 MP, SC8830, 8 GB eMMC Flash | |
|---|---|---|---|---|---|---|
| Power Consumption | 17% | 7% | 4% | -7% | -7% | |
| Idle Minimum * | 1.91 | 1.12 41% | 0.8 58% | 0.4 79% | 1.1 42% | |
| Idle Average * | 3.59 | 2.2 39% | 3.06 15% | 3.1 14% | 0.6 83% | 3.9 -9% |
| Idle Maximum * | 4.06 | 2.5 38% | 3.31 18% | 3.3 19% | 0.7 83% | 4.1 -1% |
| Load Average * | 4.29 | 3.6 16% | 4.85 -13% | 5.1 -19% | 9.8 -128% | 5.2 -21% |
| Load Maximum * | 4.31 | 5.4 -25% | 5.41 -26% | 6.5 -51% | 10.9 -153% | 6.2 -44% |
* ... smaller is better
| Samsung Galaxy Tab A7 2016 Mali-400 MP2, SC7731, 8 GB eMMC Flash | Huawei MediaPad T1 8.0 LTE Adreno 306, 410 MSM8916, 16 GB eMMC Flash | Amazon Fire Kids Edition Late 2015 Mali-450 MP4, MT8127, 8 GB eMMC Flash | Acer Iconia One 8 HD Graphics (Bay Trail), Z3735G, 16 GB eMMC Flash | Lenovo Miix 3 8 HD Graphics (Bay Trail), Z3735F, 32 GB eMMC Flash | Samsung Galaxy Tab E (9.6, Wi-Fi) Mali-400 MP, SC8830, 8 GB eMMC Flash | |
|---|---|---|---|---|---|---|
| Battery Runtime | 8% | -21% | 4% | -21% | ||
| Reader / Idle | 1353 | 1545 14% | 1257 -7% | 850 -37% | ||
| H.264 | 513 | 795 55% | 502 -2% | |||
| WiFi v1.3 | 619 | 633 2% | 490 -21% | 742 20% | 518 -16% | |
| Load | 379 | 185 -51% | 264 -30% | |||
| WiFi | 353 |
Pros
+ 紧凑，轻盈的设计
+ 不错的工艺
+ 防滑机背
+ micro-SD插槽，支持App2SD
+ 可选的儿童模式
+ 对于平板来说不错的相机质量
+ 可视角度稳定的屏幕
+ 准确的触控
+ 不错的电池续航
Cons
- 存储空间小
- 不支持MHL或Miracast
- 无线网络仅支持2.4 GHz频段
- 充电时间长
- 浏览器速度慢
- 性能较低
- 在负载下有降频现象
- 主相机视频拍摄品质一般
- 屏幕在按压下出现水波纹
三星为它的Galaxy Tab A7 (2016) SM-T280采用了非常紧凑轻盈的设计，它看上去几乎像是一台大屏手机。尽管它的机身完全为塑料材质，但防滑的机背设计仍然值得称赞。触控表面和屏幕面板之间的连接让人有些担心，在按压屏幕时它很容易就会出现水波纹。IPS的屏幕并不算特别出色，但也没有什么缺点。它所搭配的相机也是如此。尽管分辨率较低，但可以拍摄品质不错的照片。但是高品质视频拍摄就不是Galaxy Tab A7的长项了。
尽管硬件性能较低，但浏览照片、上网等基本使用在这台设备上可以流畅无阻。不过，这颗处理器在遇到需求较高的应用程序或者复杂网站时就有些捉襟见肘了。用户需要注意到它较为紧张的存储空间，幸运的是它可以通过支持App2SD的micro-SD卡槽扩展。
Galaxy Tab A7不是一台可以满足对性能需求很高的用户的设备。不过，它为日常使用提供了足够的动力，相机和屏幕在这个价位上都算是非常实用。
这台测试机目前的市场价为135欧元（约991人民币）。需要更实惠设备的用户可以考虑亚马逊的Fire平板电脑，它目前起售价约60欧元（约440人民币）。不过，用户需要接受品质较低的机身，低分辨率屏幕以及为亚马逊服务优化的操作系统。
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。
Samsung Galaxy Tab A7 2016
- 05/09/2016 v5.1 (old)
Andreas Kilian
Tablet - Weighted Average
Price comparison
