Phone Comparison - Oppo N1 vs OPPO Neo R831K vs Oppo A31
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| Manufacturer | Oppo | Oppo | Oppo |
| Announced | September 2013 | August 2014 | April 2015 |
| Status | Available - October 2013 | Available - August 2014 | Available - April 2015 |
| Price | - | - | Rs. 9,999 ($147.04) [Similarly Priced] |
| Colors | White | White, Black | White, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
170.7 x 82.6 x 9 mm (6.72 x 3.25 x 0.35 in) |
132 x 65.8 x 9.2 mm (5.2 x 2.59 x 0.36 in) |
131.9 x 65.5 x 8 mm (5.19 x 2.58 x 0.31 in) |
| Weight | 213 g (7.51 oz) | 130 g (4.59 oz) | 135 g (4.76 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 1900 / 2100 | HSDPA 2100 | TD-SCDMA 1880 / 2010 |
| 4G Network | - | - | LTE band 38(2600), 39(1900), 40(2300), 41(2500) |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail |
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| OS | Color OS based on Android OS, v4.2 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) based Color OS | Android OS, v4.4 (KitKat) |
| Processor | Quad-core 1.7 GHz Krait 300, Qualcomm Snapdragon 600 | Dual-core 1.3 GHz | Quad-core Cortex-A53, Qualcomm MSM8916 Snapdragon 410 |
| GPU | Adreno 320 | - | Adreno 306 |
| RAM | 2 GB | 1 GB | 1 GB |
| Internal Memory | 16/32 GB | 4 GB | 8 GB |
| External Memory | No | microSD, up to 32 GB | microSD, up to 128 GB |
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| Type | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.9 inches | 4.5 inches | 4.5 inches |
| Resolution | 1080 x 1920 pixels (373 ppi) | 480 x 854 pixels (218 ppi) | 480 x 854 pixels (218 ppi) |
| Screen-to-Body Ratio | 68.20% | 64.07% | 64.41% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128x3096 pixels | 5 MP, 2592 x 1944 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | Dual-LED flash | LED Flash | LED flash |
| Features | Auto focus, Rotating Lens, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR, Long Exposure (up To 8s) | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | Auto focus, Geo-tagging |
| Video | Yes, 1080p@30fps | Yes | 1080p@30fps |
| Front Camera | Yes, 13 MP, 4128x3096 pixels, autofocus, [Similar] | Yes, 2 MP [Similar] | 5 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA; HSUPA | HSPA+ | TD-SCDMA, LTE Cat4 150/50 Mbps |
| Bluetooth | Yes, v4.0 | v2.1, A2DP | v4.0 |
| Wi-Fi | Wi-Fi 802.11 ac/a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Yes |
| USB | Yes, microUSB v2.0, USB OTG | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS | Yes, with A-GPS |
| Browser | HTML5 | HTML | HTML |
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| Internal | 16/32 GB, 2 GB RAM | 4 GB, 1 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | No | microSD, up to 32 GB | microSD, up to 128 GB |
| 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 | Li-Ion Battery | Li-Ion Battery | Li-Ion Battery |
| Capacity | 3610 mAh | 1900 mAh | 2000 mAh |
| Stand by | - | - | Up to 240 h |
| Talk Time | - | - | Up to 7 h |
