Phone Comparison - Apple iPad 2 Wi-Fi + 3G vs Samsung Galaxy Tab 3 8.0 vs Oppo R1 R829T
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| Manufacturer | Apple | Samsung | Oppo |
| Announced | March 2011 | June 2013 | December 2013 |
| Status | Available - March 2011 | Available - July 2013 | Available - December 2013 |
| Colors | Black, White | White | White, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
241.2 x 185.7 x 8.8 mm (9.5 x 7.31 x 0.35 in) |
209.8 x 123.8 x 7.4 mm (8.26 x 4.87 x 0.29 in) |
142.7 x 70.4 x 7.1 mm (5.62 x 2.77 x 0.28 in) |
| Weight | 607 g (21.41 oz) | 314 g (11.08 oz) | 140 g (4.94 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | TD-SCDMA 1880-1920/ 2010-2025 |
| 4G Network | - | LTE 800 / 850 / 900 / 1800 / 2100 / 2600 | - |
| Messaging | , Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | iOS 4, upgradable to iOS 5 | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.2.1 (Jelly Bean) |
| Processor | Dual-core 1 GHz Cortex-A9, Apple A5 | Dual-core 1.5 GHz, Exynos 4212 | Quad-core 1.3 GHz, MediaTek MT6582 |
| GPU | PowerVR SGX543MP2 | Mali-400MP | Mali-400MP2 |
| RAM | 512 MB | 1.5 GB | 1 GB |
| Internal Memory | 16/32/64 GB storage | 8/16 GB | 16 GB |
| External Memory | No | microSD, up to 64 GB | No |
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| Type | LED-backlit IPS TFT, capacitive touchscreen | Capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 9.7 inches | 8.0 inches | 5.0 inches |
| Resolution | 768 x 1024 pixels (132 ppi) | 800 x 1280 pixels (189 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 65.01% | 71.21% | 68.47% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | Stereo FM radio with RDS |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 0.7 MP, 960 x 720 pixels | 5 MP, 2592х1944 pixels | 8 MP, 3264x2448 pixels |
| Flash | No | LED flash | LED flash |
| Features | No | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | Yes, 720p@30fps | Yes, 720p@30fps | Yes, 1080p |
| Front Camera | Yes, VGA [Similar] | Yes, 1.3 MP [Similar] | Yes, 5 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA; HSUPA | HSDPA, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL | HSPA+ |
| Bluetooth | Yes, v2.1 with A2DP, EDR | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | Yes, v2.0 | Yes, microUSB v2.0 (MHL), USB Host | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML (Safari) | HTML5 | HTML5 |
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| Internal | 16/32/64 GB storage, 512 MB RAM | 8/16 GB, 1.5 GB RAM | 16 GB, 1 GB RAM |
| Expandable Storage | No | microSD, up to 64 GB | No |
| USB OTG | - | Supported | - |
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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-Po | Non-removable Li-Ion Battery | Li-Ion Battery |
| Capacity | 6930 mAh (25 Wh) | 4450 mAh | 2410 mAh |
| Stand by | Up to 720 h | - | - |
| Talk Time | Up to 10 h | Up to 11 h | - |
