Phone Comparison - Samsung Galaxy Mega 5.8 Duos I9152 vs Samsung Galaxy Grand 2 vs OPPO Neo R831K
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| Manufacturer | Samsung | Samsung | Oppo |
| Announced | May 2013 | November 2013 | August 2014 |
| Status | Available - June 2013 | Available - Q4 2013 | Available - August 2014 |
| Colors | White, Black | Black, White, Pink | White, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
164.9 x 84.1 x 10.1 mm (6.49 x 3.31 x 0.4 in) |
146.8 x 75.3 x 8.9 mm (5.78 x 2.96 x 0.35 in) |
132 x 65.8 x 9.2 mm (5.2 x 2.59 x 0.36 in) |
| Weight | 182 g (6.42 oz) | 163 g (5.75 oz) | 130 g (4.59 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - GT-I9152 (SIM 1 & SIM 2) | GSM 850 / 900 / 1800 / 1900 - SM-G7100 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 - G7102 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 2100 |
| 4G Network | - | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) - SM-G7105 | - |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.3 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) based Color OS |
| Processor | Dual-core 1.4 GHz | Quad-core 1.2 GHz Cortex-A7 | Dual-core 1.3 GHz |
| GPU | - | - | - |
| RAM | 1 GB | 1.5 GB | 1 GB |
| Internal Memory | 8 GB | 8 GB | 4 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 64 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | TFT capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | - | 16M colors | 16M colors |
| Size | 5.8 inches | 5.25 inches | 4.5 inches |
| Resolution | 540 x 960 pixels (190 ppi) | 720 x 1280 pixels (280 ppi) | 480 x 854 pixels (218 ppi) |
| Screen-to-Body Ratio | 66.80% | 68.61% | 64.07% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Yes | FM Radio with Recording | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 8 MP, 3264x2448 pixels | 5 MP, 2592 x 1944 pixels |
| Flash | LED flash | LED flash | LED Flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR |
| Video | Yes | Yes, 1080p@30fps, stereo sound rec. | Yes |
| Front Camera | Yes, 1.9 MP [Similar] | Yes, 1.9 MP, 720p [Similar] | Yes, 2 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA+ |
| Bluetooth | Yes, v4.0 | Yes, v4.0 with A2DP, LE, EDR | v2.1, A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot, DLNA | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS, support and GLONASS | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML |
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| Internal | 8 GB, 1 GB RAM | 8 GB, 1.5 GB RAM | 4 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 64 GB | microSD, up to 32 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 | Li-Ion Battery | Li-Ion Battery | Li-Ion Battery |
| Capacity | 2600 mAh | 2600 mAh | 1900 mAh |
| Stand by | - | - | - |
| Talk Time | - | Up to 17 h | - |
