Phone Comparison - Asus Google Nexus 7 vs Acer Liquid E2 Duo vs Lenovo S820
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| Manufacturer | Asus | Acer | Lenovo |
| Announced | June 2012 | April 2013 | May 2013 |
| Status | Available - July 2012 | Coming Soon - May 2013 | Available - May 2013 |
| Colors | Black | Black, White | Flamingo red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
198.5 x 120 x 10.5 mm (7.81 x 4.72 x 0.41 in) |
131 x 68 x 9.9 mm (5.16 x 2.68 x 0.39 in) |
139.5 x 69.7 x 9 mm (5.49 x 2.74 x 0.35 in) |
| Weight | 340 g (11.99 oz) | 140 g (4.94 oz) | 143 g (5.04 oz) |
| 2G Network | N/A | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 900 / 1800 / 1900 |
| 3G Network | N/A | HSDPA | HSDPA 900 / 2100 |
| Messaging | , Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.1 (Jelly Bean), upgradable to v4.1.2 | Android OS, v4.2.1 (Jelly Bean) | Android OS, v4.2 (Jelly Bean) |
| Processor | Quad-core 1.3 GHz Cortex-A9, Nvidia Tegra 3 | Quad-core 1.2 GHz Cortex-A7, MTK 6589 | Quad-core 1.2 GHz, MTK 6589W |
| GPU | ULP GeForce | PowerVR SGX 544MP | PowerVR SGX544 |
| RAM | 1 GB | 1 GB | 1 GB |
| Internal Memory | 32 GB storage | 4 GB | 4 GB |
| External Memory | No | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | LED-backlit IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 7.0 inches | 4.5 inches | 4.7 inches |
| Resolution | 800 x 1280 pixels (216 ppi) | 540 x 960 pixels (245 ppi) | 720 x 1280 pixels (312 ppi) |
| Screen-to-Body Ratio | 59.45% | 62.55% | 62.82% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | FM radio; built-in antenna |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 1.2 MP | 8 MP, 3264 x 2448 pixels | 12 MP, 4000 x 3000 pixels |
| Flash | No | LED flash | LED flash |
| Features | Video-calling | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face Detection |
| Video | Yes, 720p | Yes, 1080p@30fps | Yes |
| Front Camera | No [Similar] | Yes, 2 MP [Similar] | Yes, 2 MP [Similar] |
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| GPRS | No | Yes | Yes |
| Edge | No | Yes | Yes |
| 3G | N/A | HSPA+ | HSDPA, HSUPA |
| Bluetooth | Yes | Yes, v3.0 with A2DP, EDR | Yes, v3.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual band |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML, HTML5 | HTML | HTML |
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| Internal | 32 GB storage, 1GB RAM | 4 GB, 1 GB RAM | 4 GB, 1 GB RAM |
| Expandable Storage | No | microSD, up to 32 GB | microSD, up to 32 GB |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Standard battery, Li-Ion | Li-Ion Battery | Li-Po Battery |
| Capacity | 4325 mAh | 2000 mAh | 2000 mAh |
| Stand by | 300 h | Up to 450 h | Up to 140 h (2G) Up to 140 h (3G) |
| Talk Time | Up to 10 h | Up to 9 h | Up to 22 h (2G) Up to 10 h (3G) |
