Phone Comparison - Samsung Galaxy Ace 2 vs OPPO Neo R831K vs Samsung Galaxy V
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| Manufacturer | Samsung | Oppo | Samsung |
| Announced | February 2012 | August 2014 | September 2014 |
| Status | Available - May 2012 | Available - August 2014 | Available - September 2014 |
| Colors | Black | White, Black | White, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
118.3 x 62.2 x 10.5 mm (4.66 x 2.45 x 0.41 in) |
132 x 65.8 x 9.2 mm (5.2 x 2.59 x 0.36 in) |
121.4 x 62.9 x 10.7 mm (4.78 x 2.48 x 0.42 in) |
| Weight | 122 g (4.3 oz) | 130 g (4.59 oz) | 123 g (4.34 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 (Dual Stand-by) |
| 3G Network | HSDPA 900 / 2100 | HSDPA 2100 | HSDPA 900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM |
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| OS | Android OS, v2.3 | Android OS, v4.2.2 (Jelly Bean) based Color OS | Android OS, v4.4.2 (KitKat) |
| Processor | Dual-core 800 MHz, NovaThor U8500 | Dual-core 1.3 GHz | 1.2 GHz Cortex A7, Spreadtrum Dolphin |
| GPU | Mali-400MP | - | - |
| RAM | 768 MB | 1 GB | 512 MB |
| Internal Memory | 4 GB storage | 4 GB | 4 GB |
| External Memory | microSD, up to 32GB | microSD, up to 32 GB | microSD, up to 64 GB |
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| Type | PLS TFT capacitive touchscreen | IPS LCD capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.8 inches | 4.5 inches | 4.0 inches |
| Resolution | 480 x 800 pixels (246 ppi) | 480 x 854 pixels (218 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 55.64% | 64.07% | 59.76% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM radio | - |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 5 MP, 2592 x 1944 pixels | 3 MP, 2048 x 1536 pixels |
| Flash | LED flash | LED Flash | LED flash |
| Features | Auto focus, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | Fixed Focus, Geo-tagging, Touch Focus, Face And Smile Detection |
| Video | Yes, 720p@30fps | Yes | Yes, 480p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes, 2 MP [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 14.4 Mbps | HSPA+ | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP | v2.1, A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB | microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS | Yes, with A-GPS, GLONASS |
| Browser | HTML | HTML | HTML5 |
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| Internal | 4 GB storage, 768 MB RAM | 4 GB, 1 GB RAM | 4 GB, 512 MB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 32 GB | microSD, up to 64 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-Ion Battery | Li-Ion Battery |
| Capacity | 1500 mAh | 1900 mAh | 1500 mAh |
| Stand by | Up to 670 h (2G) Up to 640 h (3G) |
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| Talk Time | Up to 16 h 20 min (2G) Up to 7 h 30 min (3G) |
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