Phone Comparison - Asus Google Nexus 7 Cellular vs Lenovo S820 vs Lenovo Vibe Z K910
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| Manufacturer | Asus | Lenovo | Lenovo |
| Announced | October 2012 | May 2013 | November 2013 |
| Status | Available - November 2012 | Available - May 2013 | Available - January 2014 |
| Colors | Black | Flamingo red | Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
198.5 x 120 x 10.5 mm (7.81 x 4.72 x 0.41 in) |
139.5 x 69.7 x 9 mm (5.49 x 2.74 x 0.35 in) |
7.9 mm thickness (0.31 in thickness) |
| Weight | 340 g (11.99 oz) | 143 g (5.04 oz) | 147 g (5.19 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 1700 / 1900 / 2100 | HSDPA 900 / 2100 | HSDPA 2100 |
| 4G Network | - | - | LTE |
| Messaging | , Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.1 (Jelly Bean), upgradable to v4.1.2 | Android OS, v4.2 (Jelly Bean) | Android OS, v4.3 (Jelly Bean) |
| Processor | Quad-core 1.3 GHz Cortex-A9, Nvidia Tegra 3 | Quad-core 1.2 GHz, MTK 6589W | Quad-core 2.2 GHz Krait 400, Qualcomm Snapdragon 800 |
| GPU | ULP GeForce | PowerVR SGX544 | Adreno 330 |
| RAM | 1 GB | 1 GB | 2 GB |
| Internal Memory | 32 GB storage | 4 GB | 16 GB ROM |
| 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 | 4.7 inches | 5.5 inches |
| Resolution | 800 x 1280 pixels (216 ppi) | 720 x 1280 pixels (312 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 59.45% | 62.82% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio; built-in antenna | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 1.2 MP front facing | 12 MP, 4000 x 3000 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | No | LED flash | Dual-LED flash |
| Features | Video-calling | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection |
| Video | Yes, 720p | Yes | Yes, 1080p@30fps |
| Front Camera | No [Similar] | Yes, 2 MP [Similar] | Yes, 5 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | Yes, 384 kbps | HSDPA, HSUPA | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 150 Mbps DL |
| Bluetooth | Yes | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual band | Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot |
| 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 | HTML | HTML5 |
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| Internal | 32 GB storage, 1GB RAM | 4 GB, 1 GB RAM | 16 GB ROM, 2 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-Po Battery | - |
| Capacity | 4325 mAh | 2000 mAh | - |
| Stand by | Up to 300 h | Up to 140 h (2G) Up to 140 h (3G) |
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| Talk Time | Up to 8 h | Up to 22 h (2G) Up to 10 h (3G) |
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