联想 Tab 2 A8 平板电脑简简短评测
Lenovo Tab 2 A8-50F (TAB A8 Series)
Processor
MediaTek MT8161 4 x 1.3 GHz, Cortex-A53
Graphics adapter
ARM Mali-T720 MP2
Memory
1024 MB
, LPDDR3
Display
8.00 inch 16:10, 1280 x 800 pixel, 10点触控，电容型, IPS, glossy: yes
Storage
16 GB eMMC Flash, 16 GB
Weight
360 g, Power Supply: 91 g
Price
115 Euro
Links
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 Basic 2
Maximum: 381.6 cd/m² (Nits) Average: 365.8 cd/m²Brightness Distribution: 90 %
Center on Battery: 381.6 cd/m²
Contrast: 909:1 (Black: 0.42 cd/m²)
ΔE ColorChecker Calman: 6.63 | ∀{0.5-29.43 Ø4.79}
ΔE Greyscale Calman: 5.1 | ∀{0.09-98 Ø5}
Gamma: 1.96
CCT: 7612 K
| Lenovo Tab 2 A8-50F | NVIDIA Shield Tablet P1761W | Asus MeMo Pad 8 ME581CL-1B027A | Huawei MediaPad T1 8.0 LTE | Dell Venue 8 7000 | Lenovo Tab S8 | |
|---|---|---|---|---|---|---|
| Screen | 5% | 20% | -5% | -15% | 32% | |
| Brightness middle (cd/m²) | 381.6 | 455 19% | 543 42% | 324 -15% | 231.1 -39% | 418 10% |
| Brightness (cd/m²) | 366 | 469 28% | 542 48% | 301 -18% | 239 -35% | 401 10% |
| Brightness Distribution (%) | 90 | 92 2% | 91 1% | 87 -3% | 84 -7% | 85 -6% |
| Black Level * (cd/m²) | 0.42 | 0.68 -62% | 0.4 5% | 0.39 7% | 0.22 48% | |
| Contrast (:1) | 909 | 669 -26% | 1358 49% | 831 -9% | 1900 109% | |
| Colorchecker dE 2000 * | 6.63 | 3.88 41% | 5.74 13% | 5.96 10% | 7.45 -12% | 4.19 37% |
| Greyscale dE 2000 * | 5.1 | 3.38 34% | 5.94 -16% | 5.33 -5% | 4.15 19% | 4.26 16% |
| Gamma | 1.96 112% | 2.74 80% | 2.5 88% | 2.19 100% | 1.72 128% | 2.41 91% |
| CCT | 7612 85% | 6537 99% | 6404 101% | 7184 90% | 6331 103% | 6246 104% |
* ... smaller is better
Vellamo 3.x | PCMark for Android | Sunspider | Google V8 Ver. 7 | Octane V2 | Mozilla Kraken 1.1 | WebXPRT 2013 | WebXPRT 2015 | Peacekeeper | BaseMark OS II | AndEBench | ANDEBench PRO | Epic Citadel | AndroBench 3-5 | 3DMark | Geekbench 3
| PCMark for Android - Work performance score (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| Samsung Galaxy Tab Active | |
| Huawei MediaPad X1 | |
| Google V8 Ver. 7 - Google V8 Ver. 7 Score (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| NVIDIA Shield Tablet P1761W | |
| Asus Memo Pad 8 ME181CX | |
| Samsung Galaxy Tab Active | |
| Huawei MediaPad X1 | |
| Octane V2 - Total Score (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| NVIDIA Shield Tablet P1761W | |
| Asus Memo Pad 8 ME181CX | |
| Samsung Galaxy Tab Active | |
| Huawei MediaPad X1 | |
| Mozilla Kraken 1.1 - Total (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| NVIDIA Shield Tablet P1761W | |
| Asus Memo Pad 8 ME181CX | |
| Samsung Galaxy Tab Active | |
| Huawei MediaPad X1 | |
| WebXPRT 2015 - Overall (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| Peacekeeper - --- (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| Samsung Galaxy Tab Active | |
| Huawei MediaPad X1 | |
| AndEBench | |
| Java (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| NVIDIA Shield Tablet P1761W | |
| Huawei MediaPad X1 | |
| Native (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| NVIDIA Shield Tablet P1761W | |
| Huawei MediaPad X1 | |
| ANDEBench PRO | |
| 3D (sort by value) | |
| NVIDIA Shield Tablet P1761W | |
| Platform (sort by value) | |
| NVIDIA Shield Tablet P1761W | |
| Storage (sort by value) | |
| NVIDIA Shield Tablet P1761W | |
| Memory Latency (sort by value) | |
| NVIDIA Shield Tablet P1761W | |
| Memory Bandwidth (sort by value) | |
| NVIDIA Shield Tablet P1761W | |
| CoreMark-PRO/HPC (Base) (sort by value) | |
| NVIDIA Shield Tablet P1761W | |
| Device Score (sort by value) | |
| NVIDIA Shield Tablet P1761W | |
| Epic Citadel | |
| Ultra High Quality (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| NVIDIA Shield Tablet P1761W | |
| High Quality (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| Huawei MediaPad X1 | |
| High Performance (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| Huawei MediaPad X1 | |
| Geekbench 3 | |
| 32 Bit Multi-Core Score (sort by value) | |
| NVIDIA Shield Tablet P1761W | |
| Asus Memo Pad 8 ME181CX | |
| Samsung Galaxy Tab Active | |
| Huawei MediaPad X1 | |
| 32 Bit Single-Core Score (sort by value) | |
| NVIDIA Shield Tablet P1761W | |
| Asus Memo Pad 8 ME181CX | |
| Samsung Galaxy Tab Active | |
| Huawei MediaPad X1 | |
| 64 Bit Multi-Core Score (sort by value) | |
| Lenovo Tab 2 A8-50F | |
| 64 Bit Single-Core Score (sort by value) | |
| Lenovo Tab 2 A8-50F | |
* ... smaller is better
(+) The average temperature for the upper side under maximal load is 30.4 °C / 87 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 34.4 °C / 94 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 33.8 °C / 93 F, compared to the average of 33.2 °C / 92 F
(+) In idle usage, the average temperature for the upper side is 22 °C / 72 F, compared to the device average of 30 °C / 86 F.
(+) The maximum temperature on the upper side is 34.4 °C / 94 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 33.8 °C / 93 F, compared to the average of 33.2 °C / 92 F
(+) In idle usage, the average temperature for the upper side is 22 °C / 72 F, compared to the device average of 30 °C / 86 F.
| Lenovo Tab 2 A8-50F 16.3 Wh | NVIDIA Shield Tablet P1761W 19.8 Wh | Asus MeMo Pad 8 ME581CL-1B027A 15.2 Wh | Huawei MediaPad T1 8.0 LTE 16.9 Wh | Dell Venue 8 7000 18.2 Wh | Lenovo Tab S8 21 Wh | |
|---|---|---|---|---|---|---|
| Battery runtime | -45% | -19% | 13% | 40% | 12% | |
| Reader / Idle (h) | 23.2 | 14.3 -38% | 13.2 -43% | 25.8 11% | 29.8 28% | 23.8 3% |
| WiFi v1.3 (h) | 9.3 | 10.6 14% | ||||
| Load (h) | 4.4 | 2.1 -52% | 4.6 5% | 6.7 52% | 5.3 20% | |
| WiFi (h) | 5.8 | 7.1 | 8.3 | 10.2 |
Pros
+ 低价
+ 明亮的屏幕
+ MiraVision色彩设定
+ 可选的双MicroSIM卡功能，以及GSM和4G LTE支持
+ 优秀电池续航
+ MicroSD卡支持
+ eMMC闪存速度快
+ 安卓5.0操作系统
+ 优秀的前置扬声器
Cons
- 无环境光传感器
- 相比其他8寸平板较重
- 仅1GB内存；1280 x 800分辨率
- 性能下降较快
- 触控屏幕经常反应不准确
售价129美元的Tab 2 A8是一款值得尊重的平板电脑产品。它的屏幕亮度和电池续航时间均优于平均水平，而在低价市场中它的音响效果也十分出色。遗憾的是，它在其他方面就没有什么突出优势了。1GB内存和800p分辨率的屏幕让我们感觉在2015年对于平板来说还是有些过低了。它相比其他的8寸机型也更沉一些，触控屏幕偶尔会有识别错误的情况。
对希望购买一款8寸平板电脑的用户，相比Tab 2 A8我们更推荐联想Tab S8。Tab S8更轻薄，屏幕更明亮，整体表现优于Tab 2 A8，目前售价169美元。多出的40美元绝对物有所值。
对希望购买一款8寸平板电脑的用户，相比Tab 2 A8我们更推荐联想Tab S8。
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 Tab 2 A8-50F
- 06/25/2015 v4 (old)
Allen Ngo
Tablet - Weighted Average
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