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Breve Análise do Tablet Lenovo Tab 2 A8

Android 5.0 barato. O Tab 2 A8 promete amplos recursos multimídia por um preço acessível de $129. Será que [e um digno sucessor do Tab A8 de 8 polegadas do ano passado?
Lenovo Tab 2 A8-50F (TAB A8 Serie)
Processador
MediaTek MT8161 4 x 1.3 GHz, Cortex-A53
Placa gráfica
ARM Mali-T720 MP2
Memória
1024 MB 
, LPDDR3
Pantalha
8.00 polegadas 16:10, 1280 x 800 pixel, Capacitiva de 10-pontos, IPS, Brilhante: sim
Disco rígido
16 GB eMMC Flash, 16 GB 
Conexões
1 USB 2.0, Conexões Audio: 3.5 mm audio, Card Reader: MicroSD, Sensores: Acelerômetro, GPS, Proximidade
Funcionamento em rede
802.11 b/g/n (b/g/n = Wi-Fi 4/), Bluetooth 4.0, 2x Micro SIM
Tamanho
altura x largura x profundidade (em mm): 8.9 x 210 x 125
Bateria
16 Wh Lítio-Polímero, 4290 mAh
Sistema Operativo
Android 5.0 Lollipop
Camera
Webcam: Traseira: 5 MP auto-foco, Frontal: 2 MP foco fixo
Características adicionais
Alto falantes: Stereo Dolby Atmos, Carregador USB, SYNCit HD, SHAREit, Dolby Atmos, 12 Meses Garantia
peso
360 g, Suprimento de energia: 91 g
Preço
115 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

221 mm 126 mm 9.2 mm 371 g213.1 mm 126.2 mm 9.75 mm 393 g213 mm 123 mm 7.4 mm 299 g210 mm 125 mm 8.9 mm 360 g210.6 mm 127.7 mm 7.9 mm 360 g209 mm 124 mm 8.9 mm 410 g209.8 mm 123.8 mm 7.9 mm 300 g210 mm 148 mm 1 mm 2.9 g
Bottom: Microphone
Bottom: Microphone
Right: Power button, Volume rocker
Right: Power button, Volume rocker
Top: Micro-USB 2.0, 3.5 mm audio
Top: Micro-USB 2.0, 3.5 mm audio
Left: MicroSD, 2x Micro SIM (optional)
Left: MicroSD, 2x Micro SIM (optional)
368.1
cd/m²
371.2
cd/m²
369.1
cd/m²
362.8
cd/m²
381.6
cd/m²
355.2
cd/m²
365.4
cd/m²
373.9
cd/m²
345.2
cd/m²
Distribuição do brilho
tested with X-Rite i1Pro Basic 2
Máximo: 381.6 cd/m² (Nits) Médio: 365.8 cd/m²
iluminação: 90 %
iluminação com acumulador: 381.6 cd/m²
Contraste: 909:1 (Preto: 0.42 cd/m²)
ΔE Color 6.63 | 0.5-29.43 Ø4.92
ΔE Greyscale 5.1 | 0.5-98 Ø5.2
Gamma: 1.96
Lenovo Tab 2 A8-50FNVIDIA Shield Tablet P1761WAsus MeMo Pad 8 ME581CL-1B027AHuawei MediaPad T1 8.0 LTEDell Venue 8 7000Lenovo Tab S8
Screen
5%
20%
-5%
-15%
32%
Brightness middle
381.6
455
19%
543
42%
324
-15%
231.1
-39%
418
10%
Brightness
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 *
0.42
0.68
-62%
0.4
5%
0.39
7%
0.22
48%
Contrast
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

Geekbench 3
Geekbench 3
Vellamo 3.0
Vellamo 3.0
Basemark OS II
Basemark OS II
AnTuTu
AnTuTu
Vellamo 3.x
Metal (sort by value)
Lenovo Tab 2 A8-50F
911 Points
NVIDIA Shield Tablet P1761W
1754 (1729min - 1778max) Points +93%
Asus Memo Pad 8 ME181CX
1098 Points +21%
Samsung Galaxy Tab Active
804 Points -12%
Huawei MediaPad X1
874 Points -4%
Multicore Beta (sort by value)
Lenovo Tab 2 A8-50F
1398 Points
NVIDIA Shield Tablet P1761W
2460 (2444min - 2476max) Points +76%
Asus Memo Pad 8 ME181CX
1446 Points +3%
Samsung Galaxy Tab Active
1005 Points -28%
Huawei MediaPad X1
1200 Points -14%
Browser (sort by value)
Lenovo Tab 2 A8-50F
1866 Points
NVIDIA Shield Tablet P1761W
4860 (4833min - 4903max) Points +160%
NVIDIA Shield Tablet P1761W
2869 (2681min - 3056max) Points +54%
Asus Memo Pad 8 ME181CX
2944 Points +58%
Samsung Galaxy Tab Active
1679 Points -10%
Huawei MediaPad X1
1973 Points +6%
PCMark for Android - Work performance score (sort by value)
Lenovo Tab 2 A8-50F
3396 Points
Samsung Galaxy Tab Active
2769 Points -18%
Huawei MediaPad X1
2019 Points -41%
Sunspider
1.0 Total Score (sort by value)
Lenovo Tab 2 A8-50F
1713 ms *
NVIDIA Shield Tablet P1761W
525 ms * +69%
NVIDIA Shield Tablet P1761W
458 ms * +73%
Asus Memo Pad 8 ME181CX
609 ms * +64%
Samsung Galaxy Tab Active
2616 ms * -53%
Huawei MediaPad X1
1277 ms * +25%
0.9.1 Total Score (sort by value)
Lenovo Tab 2 A8-50F
1654 ms *
NVIDIA Shield Tablet P1761W
532 ms * +68%
Huawei MediaPad X1
1217 ms * +26%
Google V8 Ver. 7 - Google V8 Ver. 7 Score (sort by value)
Lenovo Tab 2 A8-50F
2877 Points
NVIDIA Shield Tablet P1761W
8040 Points +179%
Asus Memo Pad 8 ME181CX
5356 Points +86%
Samsung Galaxy Tab Active
2050 Points -29%
Huawei MediaPad X1
1835 Points -36%
Octane V2 - Total Score (sort by value)
Lenovo Tab 2 A8-50F
2510 Points
NVIDIA Shield Tablet P1761W
6777 Points +170%
Asus Memo Pad 8 ME181CX
5148 Points +105%
Samsung Galaxy Tab Active
1891 Points -25%
Huawei MediaPad X1
1603 Points -36%
Mozilla Kraken 1.1 - Total (sort by value)
Lenovo Tab 2 A8-50F
24610 ms *
NVIDIA Shield Tablet P1761W
4286 ms * +83%
Asus Memo Pad 8 ME181CX
5496 ms * +78%
Samsung Galaxy Tab Active
17356 ms * +29%
Huawei MediaPad X1
22419 ms * +9%
WebXPRT 2013
Offline Notes (sort by value)
Lenovo Tab 2 A8-50F
1979 ms *
NVIDIA Shield Tablet P1761W
748 ms * +62%
Asus Memo Pad 8 ME181CX
859 ms * +57%
Samsung Galaxy Tab Active
3350 ms * -69%
Huawei MediaPad X1
2227 ms * -13%
Stocks Dashboard (sort by value)
Lenovo Tab 2 A8-50F
2058 ms *
NVIDIA Shield Tablet P1761W
742 ms * +64%
Asus Memo Pad 8 ME181CX
783 ms * +62%
Samsung Galaxy Tab Active
3041 ms * -48%
Huawei MediaPad X1
1741 ms * +15%
Face Detection (sort by value)
Lenovo Tab 2 A8-50F
3071 ms *
NVIDIA Shield Tablet P1761W
975 ms * +68%
Asus Memo Pad 8 ME181CX
3307 ms * -8%
Samsung Galaxy Tab Active
3577 ms * -16%
Huawei MediaPad X1
2877 ms * +6%
Photo Effects (sort by value)
Lenovo Tab 2 A8-50F
1091 ms *
NVIDIA Shield Tablet P1761W
698 ms * +36%
Asus Memo Pad 8 ME181CX
654 ms * +40%
Samsung Galaxy Tab Active
1678 ms * -54%
Huawei MediaPad X1
1610 ms * -48%
Overall (sort by value)
Lenovo Tab 2 A8-50F
216 Points
NVIDIA Shield Tablet P1761W
530 Points +145%
Asus Memo Pad 8 ME181CX
378 Points +75%
Samsung Galaxy Tab Active
148 Points -31%
Huawei MediaPad X1
202 Points -6%
WebXPRT 2015 - Overall (sort by value)
Lenovo Tab 2 A8-50F
47 Points
Peacekeeper - --- (sort by value)
Lenovo Tab 2 A8-50F
620 Points
Samsung Galaxy Tab Active
467 Points -25%
Huawei MediaPad X1
745 Points +20%
BaseMark OS II
Web (sort by value)
Lenovo Tab 2 A8-50F
609 Points
NVIDIA Shield Tablet P1761W
863 Points +42%
Samsung Galaxy Tab Active
595 Points -2%
Huawei MediaPad X1
349 Points -43%
Graphics (sort by value)
Lenovo Tab 2 A8-50F
285 Points
NVIDIA Shield Tablet P1761W
8065 Points +2730%
Samsung Galaxy Tab Active
355 Points +25%
Huawei MediaPad X1
394 Points +38%
Memory (sort by value)
Lenovo Tab 2 A8-50F
472 Points
NVIDIA Shield Tablet P1761W
596 Points +26%
Samsung Galaxy Tab Active
324 Points -31%
Huawei MediaPad X1
267 Points -43%
System (sort by value)
Lenovo Tab 2 A8-50F
1221 Points
NVIDIA Shield Tablet P1761W
1012 Points -17%
Samsung Galaxy Tab Active
881 Points -28%
Huawei MediaPad X1
993 Points -19%
Overall (sort by value)
Lenovo Tab 2 A8-50F
563 Points
NVIDIA Shield Tablet P1761W
1431 Points +154%
Samsung Galaxy Tab Active
496 Points -12%
Huawei MediaPad X1
437 Points -22%
AndEBench
Java (sort by value)
Lenovo Tab 2 A8-50F
768 Iter./s
NVIDIA Shield Tablet P1761W
1026 Iter./s +34%
Huawei MediaPad X1
537 Iter./s -30%
Native (sort by value)
Lenovo Tab 2 A8-50F
7742 Iter./s
NVIDIA Shield Tablet P1761W
17300 Iter./s +123%
Huawei MediaPad X1
11881 Iter./s +53%
ANDEBench PRO
3D (sort by value)
NVIDIA Shield Tablet P1761W
53 fps
Platform (sort by value)
NVIDIA Shield Tablet P1761W
248 Points
Storage (sort by value)
NVIDIA Shield Tablet P1761W
7958 KB/s
Memory Latency (sort by value)
NVIDIA Shield Tablet P1761W
7268 KOps/s
Memory Bandwidth (sort by value)
NVIDIA Shield Tablet P1761W
6150 MB/s
CoreMark-PRO/HPC (Base) (sort by value)
NVIDIA Shield Tablet P1761W
3509 Points
Device Score (sort by value)
NVIDIA Shield Tablet P1761W
11211 Points
Epic Citadel
Ultra High Quality (sort by value)
Lenovo Tab 2 A8-50F
39.9 fps
NVIDIA Shield Tablet P1761W
59.4 fps +49%
High Quality (sort by value)
Lenovo Tab 2 A8-50F
58.8 fps
Huawei MediaPad X1
52.6 fps -11%
High Performance (sort by value)
Lenovo Tab 2 A8-50F
59.1 fps
Huawei MediaPad X1
53.2 fps -10%
AndroBench 3-5
Random Write 4KB (sort by value)
Lenovo Tab 2 A8-50F
2.96 MB/s
NVIDIA Shield Tablet P1761W
0.9 MB/s -70%
Asus Memo Pad 8 ME181CX
0.7 MB/s -76%
Samsung Galaxy Tab Active
9.76 MB/s +230%
Huawei MediaPad X1
0.78 MB/s -74%
Random Read 4KB (sort by value)
Lenovo Tab 2 A8-50F
15.54 MB/s
NVIDIA Shield Tablet P1761W
11 MB/s -29%
Asus Memo Pad 8 ME181CX
13 MB/s -16%
Samsung Galaxy Tab Active
20.24 MB/s +30%
Huawei MediaPad X1
7.62 MB/s -51%
Sequential Write 256KB (sort by value)
Lenovo Tab 2 A8-50F
45.38 MB/s
NVIDIA Shield Tablet P1761W
15.5 MB/s -66%
Asus Memo Pad 8 ME181CX
14 MB/s -69%
Samsung Galaxy Tab Active
42.81 MB/s -6%
Huawei MediaPad X1
11.26 MB/s -75%
Sequential Read 256KB (sort by value)
Lenovo Tab 2 A8-50F
138 MB/s
NVIDIA Shield Tablet P1761W
83 MB/s -40%
Asus Memo Pad 8 ME181CX
95 MB/s -31%
Samsung Galaxy Tab Active
151.8 MB/s +10%
Huawei MediaPad X1
37.58 MB/s -73%
3DMark
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
Lenovo Tab 2 A8-50F
9598 Points
NVIDIA Shield Tablet P1761W
21086 Points +120%
Asus Memo Pad 8 ME181CX
17455 Points +82%
Samsung Galaxy Tab Active
7763 Points -19%
Huawei MediaPad X1
11513 Points +20%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
Lenovo Tab 2 A8-50F
4340 Points
NVIDIA Shield Tablet P1761W
39590 Points +812%
Asus Memo Pad 8 ME181CX
13414 Points +209%
Samsung Galaxy Tab Active
4166 Points -4%
Huawei MediaPad X1
5227 Points +20%
1280x720 offscreen Ice Storm Unlimited Score (sort by value)
Lenovo Tab 2 A8-50F
4942 Points
NVIDIA Shield Tablet P1761W
33129 Points +570%
Asus Memo Pad 8 ME181CX
14142 Points +186%
Samsung Galaxy Tab Active
4644 Points -6%
Huawei MediaPad X1
5949 Points +20%
1920x1080 Ice Storm Extreme Physics (sort by value)
Lenovo Tab 2 A8-50F
8398 Points
Samsung Galaxy Tab Active
7552 Points -10%
Huawei MediaPad X1
10001 Points +19%
1920x1080 Ice Storm Extreme Graphics (sort by value)
Lenovo Tab 2 A8-50F
2734 Points
Samsung Galaxy Tab Active
2433 Points -11%
Huawei MediaPad X1
3574 Points +31%
1920x1080 Ice Storm Extreme Score (sort by value)
Lenovo Tab 2 A8-50F
3216 Points
Samsung Galaxy Tab Active
2864 Points -11%
Huawei MediaPad X1
4169 Points +30%
1280x720 Ice Storm Standard Physics (sort by value)
Lenovo Tab 2 A8-50F
8693 Points
Samsung Galaxy Tab Active
7639 Points -12%
Huawei MediaPad X1
9720 Points +12%
1280x720 Ice Storm Standard Graphics (sort by value)
Lenovo Tab 2 A8-50F
2739 Points
Samsung Galaxy Tab Active
5244 Points +91%
Huawei MediaPad X1
5382 Points +96%
1280x720 Ice Storm Standard Score (sort by value)
Lenovo Tab 2 A8-50F
3231 Points
Samsung Galaxy Tab Active
5637 Points +74%
Huawei MediaPad X1
5975 Points +85%
Geekbench 3
32 Bit Multi-Core Score (sort by value)
NVIDIA Shield Tablet P1761W
3495 Points
Asus Memo Pad 8 ME181CX
2324 Points
Samsung Galaxy Tab Active
1142 Points
Huawei MediaPad X1
1643 Points
32 Bit Single-Core Score (sort by value)
NVIDIA Shield Tablet P1761W
1127 Points
Asus Memo Pad 8 ME181CX
771 Points
Samsung Galaxy Tab Active
340 Points
Huawei MediaPad X1
537 Points
64 Bit Multi-Core Score (sort by value)
Lenovo Tab 2 A8-50F
1838 Points
64 Bit Single-Core Score (sort by value)
Lenovo Tab 2 A8-50F
616 Points

Legend

 
Lenovo Tab 2 A8-50F MediaTek MT8161, ARM Mali-T720 MP2, 16 GB eMMC Flash
 
NVIDIA Shield Tablet P1761W Nvidia Tegra K1, NVIDIA Tegra K1 Kepler GPU, 16 GB iNAND Flash
 
Asus Memo Pad 8 ME181CX Intel Atom Z3745, Intel HD Graphics (Bay Trail), 16 GB eMMC Flash
 
Samsung Galaxy Tab Active Qualcomm Snapdragon 400 MSM8926, Qualcomm Adreno 305, 16 GB eMMC Flash
 
Huawei MediaPad X1 HiSilicon Kirin 910, ARM Mali-450 MP4, 16 GB eMMC Flash

* ... smaller is better

Carga Máxima
 34 °C28 °C28.6 °C 
 34.4 °C28.6 °C28.8 °C 
 33.8 °C28.4 °C28.8 °C 
Máximo: 34.4 °C
Médio: 30.4 °C
30.2 °C31 °C33.4 °C
30.4 °C30.4 °C32.8 °C
29.6 °C30.4 °C33.8 °C
Máximo: 33.8 °C
Médio: 31.3 °C
Temperatura do quarto 21 °C | Fluke 62 Mini IR Thermometer
(+) 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 33.8 °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 33.3 °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.
Tempo de Execução da Bateria
Ocioso (sem WLAN, min brilho)
23h 10min
WiFi Websurfing
9h 18min
Carga (máximo brilho)
4h 23min
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%
12%
41%
12%
Reader / Idle
1390
856
-38%
790
-43%
1545
11%
1790
29%
1425
3%
WiFi v1.3
558
633
13%
Load
263
128
-51%
276
5%
402
53%
315
20%
WiFi
347
424
495
610

Pro

+ Econômico
+ Tela brilhante
+ Configuração de cores MiraVision
+ Suporte opcional para dois Micro SIM com GSM e 4G LTE
+ Boa duração da bateria
+ Suporte para MicroSD
+ Rápido desempenho eMMC
+ Android 5.0
+ Bons alto falantes dianteiros

Contra

- Sem sensor de luz ambiente
- Mais pesado que outros modelos de 8 polegadas
- Apenas 1 GB de RAM; resolução de 1280 x 800
- Desempenho pode cair rapidamente
- A tela táctil registra entradas incorretamente com frequência
In review: Lenovo Tab 2 A8-50. Test model provided by Lenovo US
In review: Lenovo Tab 2 A8-50. Test model provided by Lenovo US

O Tab 2 A8 é um tablet respeitável pelo preço demandado de $129. O brilho da tela e a duração da bateria estão acima da média e a qualidade do som é bastante boa considerando o seu mercado alvo. Infelizmente, não muito mais do aparelho pode ser elogiado. Não podemos evitar sentir que o seu 1 GB de RAM e a resolução de 800p da tela são pouco para um tablet em 2015. Também é um pouco mais pesado que outros modelos de 8-polegadas e sua tela táctil registra entradas incorretamente.

Recomendamos o Lenovo Tab S8 em vez do Tab 2 A8 para usuários à procura de um tablet de 8-polegadas. O Tab S8 é mais leve, fino e brilhante, e melhor que o Tab 2 A8 e é vendido atualmente por $169. Os $40 extras podem ser melhor gastos em outras coisas.

Recomendamos o Lenovo Tab S8 en vez do Tab 2 A8 para usuários à procura de um tablet de 8-polegadas.

Esta é uma versão reduzida da análise original. Você pode ler a análise completa em inglês aqui.

Lenovo Tab 2 A8-50F - 06/25/2015 v4 (old)
Allen Ngo

Acabamento
71%
Teclado
80 / 80 → 100%
Mouse
80%
Conectividade
51 / 65 → 78%
Peso
83 / 40-88 → 90%
Bateria
94%
Pantalha
76%
Desempenho do jogos
54 / 68 → 79%
Desempenho da aplicação
28 / 76 → 37%
Temperatura
94%
Ruído
100%
Audio
60 / 91 → 66%
Camera
60 / 85 → 71%
Médio
72%
81%
Tablet - Médio equilibrado

Price comparison

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> Análises e revisões de portáteis e celulares > Análises > Análises > Breve Análise do Tablet Lenovo Tab 2 A8
Allen Ngo, 2015-06-29 (Update: 2015-07- 3)