Phone Comparison - Asus Google Nexus 7 vs Asus Google Nexus 7 2013 vs Nokia Lumia 638
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| Manufacturer | Asus | Asus | Nokia |
| Announced | June 2012 | July 2013 | December 2014 |
| Status | Available - July 2012 | Available - July 2013 | Available - December 2014 |
| Price | - | - | Rs. 7,999 ($117.63) [Similarly Priced] |
| Colors | Black | Black | Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
198.5 x 120 x 10.5 mm (7.81 x 4.72 x 0.41 in) |
200 x 114 x 8.7 mm (7.87 x 4.49 x 0.34 in) |
129.5 x 66.7 x 9.2 mm (5.1 x 2.63 x 0.36 in) |
| Weight | 340 g (11.99 oz) | 290 g (Wi-Fi) / 299 g (LTE) (10.23 oz (Wi-Fi) / 10.55 oz (LTE) ) | 136 g (4.8 oz) |
| 2G Network | N/A | GSM 850 / 900 / 1800 / 1900 - LTE Version | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | N/A | HSDPA 850 / 900 / 1700 / 1900 / 2100 - LTE Version HSDPA 850 / 900 / 2100 - LTE Version |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE - LTE Version | LTE 1800 / 1900 / 2100 / 2300 / 2500 / 2600 (Bands 3, 7, 38, 39, 40, 41) |
| Messaging | , Push Mail, EMail, IM | , Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.1 (Jelly Bean), upgradable to v4.1.2 | Android OS, v4.3 (Jelly Bean) | Microsoft Windows Phone 8.1 |
| Processor | Quad-core 1.3 GHz Cortex-A9, Nvidia Tegra 3 | Quad-core 1.5 GHz Krait 300, Qualcomm APQ8064 Snapdragon 600 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | ULP GeForce | Adreno 320 | Adreno 305 |
| RAM | 1 GB | 2 GB | 1 GB |
| Internal Memory | 32 GB storage | 16/32 GB | 8 GB |
| External Memory | No | No | microSD, up to 128 GB |
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| Type | LED-backlit IPS LCD capacitive touchscreen | LED-backlit IPS LCD capacitive touchscreen, Corning Gorilla Glass | IPS LCD capacitive touchscreen, Corning Gorilla Glass 3, ClearBlack Display |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 7.0 inches | 7.0 inches | 4.5 inches |
| Resolution | 800 x 1280 pixels (216 ppi) | 1200 x 1920 pixels (323 ppi) | 480 x 854 pixels (218 ppi) |
| Screen-to-Body Ratio | 59.45% | 62.49% | 64.43% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 1.2 MP | 5 MP, 2592 х 1944 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | No | No | No |
| Features | Video-calling | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection | Auto focus, 1/4 |
| Video | Yes, 720p | Yes, 1080p@30fps | Yes |
| Front Camera | No [Similar] | Yes, 1.2 MP [Similar] | No [Similar] |
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| GPRS | No | Yes | Yes |
| Edge | No | Yes | Yes |
| 3G | N/A | HSPA+; LTE | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | Yes | Yes, v4.0 with A2DP, LE | v4.0, A2DP, LE/ apt-X after WP8 Denim update |
| 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 b/g/n, DLNA, hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB (SlimPort) v2.0 | microUSB v2.0 |
| GPS | Yes | Yes | Yes, with A-GPS, GLONASS |
| Browser | HTML, HTML5 | HTML5 | HTML5 |
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| Internal | 32 GB storage, 1GB RAM | 16/32 GB, 2 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | No | No | microSD, up to 128 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 | Non-removable battery | Li-Ion Battery (BL-5H) |
| Capacity | 4325 mAh | 3950 mAh | 1830 mAh |
| Stand by | 300 h | - | - |
| Talk Time | Up to 10 h | Up to 10 h (multimedia) | - |
