Phone Comparison - Apple iPad mini 2 Retina Display vs Lenovo S939 vs Oppo R1S
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| Manufacturer | Apple | Lenovo | Oppo |
| Announced | October 2013 | February 2014 | April 2014 |
| Status | Available - November 2013 | Available - February 2014 | Coming Soon - Q2 2014 |
| Colors | Space Gray, Silver | Black, White | White, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
200 x 134.7 x 7.5 mm (7.87 x 5.3 x 0.3 in) |
170 x 86.5 x 8.65 mm (6.69 x 3.41 x 0.34 in) |
142.7 x 70.4 x 7.1 mm (5.62 x 2.77 x 0.28 in) |
| Weight | 331 g / 341 g (11.68 oz / 12.03 oz) | 180 g (6.35 oz) | 140 g (4.94 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 2100 | HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA 1880-1920/ 2010-2025 |
| 4G Network | LTE- all models | - | LTE 1800 / 2600 TD-LTE 1880-1920/ 2300-2400/ 2570-2620 |
| Messaging | , Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | iOS 7.0.2 | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.3 (Jelly Bean) |
| Processor | Dual-core 1.3 GHz Cyclone (ARM v8-based), Apple A7 | Octa-core 1.7 GHz, Mediatek MT6592 | Quad-core 1.6 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | PowerVR G6430 (quad-core graphics) | Mali-450MP4 | Adreno 305 |
| RAM | N/A | 1 GB | 1 GB |
| Internal Memory | 16/32/64/128 GB storage | 8 GB ROM | 16 GB |
| External Memory | No | microSD, up to 32 GB | No |
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| Type | LED-backlit IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen, OGS | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 7.9 inches | 6.0 inches | 5.0 inches |
| Resolution | 1536 x 2048 pixels (324 ppi) | 720 x 1280 pixels (245 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 71.76% | 67.36% | 68.47% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM Radio with Recording | Stereo FM radio with RDS |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 8 MP, 3264x2448 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | No | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, 360 degree Panorama, HDR, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | Yes, 1080p@30fps, video stabilization | Yes, 1080p@30fps | Yes, 1080p |
| Front Camera | Yes, 1.2 MP, 720p@30fps, face detection, [Similar] | Yes, 1.6 MP [Similar] | Yes, 5 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps, LTE, 100 Mbps; EV-DO Rev. A, up to 3.1 Mbps | HSDPA, 42.2 Mbps, HSUPA, 11.5 Mbps | HSPA+, LTE |
| Bluetooth | Yes, v4.0 with A2DP, EDR | Yes, v4.0 | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band | Wi-Fi 802.11 b/g/n, 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 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML (Safari) | HTML5 | HTML5 |
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| Internal | 16/32/64/128 GB storage | 8 GB ROM, 1 GB RAM | 16 GB, 1 GB RAM |
| Expandable Storage | No | microSD, up to 32 GB | No |
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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 | Non-removable Li-Po battery (23.8 Wh) | Li-Ion Battery | Li-Ion Battery |
| Capacity | - | 3000 mAh | 2410 mAh |
| Stand by | - | - | - |
| Talk Time | Up to 10 h (multimedia) | - | - |
