Phone Comparison - Samsung Galaxy Grand Duos I9082 vs Samsung Galaxy Core I8262 vs Xiaomi Redmi 1S
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| Manufacturer | Samsung | Samsung | Xiaomi |
| Announced | December 2012 | May 2013 | May 2014 |
| Status | Available - January 2013 | Available - June 2013 | Available - May 2014 |
| Colors | Black, White | White, Blue | Black, Chinese Red, Metallic Gray/ blue, green, yellow panels |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
143.5 x 76.9 x 9.6 mm (5.65 x 3.03 x 0.38 in) |
129.3 x 67.6 x 8.95 mm (5.09 x 2.66 x 0.35 in) |
137 x 69 x 9.9 mm (5.39 x 2.72 x 0.39 in) |
| Weight | 162 g (5.71 oz) | 124 g (4.37 oz) | 158 g (5.57 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual Stand-by) | GSM 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 1900 / 2100 - SIM 1 only HSDPA 900 / 1900 / 2100 - SIM 1 only |
HSDPA 900 / 2100 | HSDPA 1900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.1.2 (Jelly Bean) | Android OS, v4.1.2 (Jelly Bean) | Android OS, v4.3 (Jelly Bean) |
| Processor | Dual-core 1.2 GHz Cortex-A9, Broadcom | Dual-core 1.2 GHz Cortex-A5, Qualcomm MSM8625 Snapdragon S4 Play | Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8228 Snapdragon |
| GPU | Broadcom VideoCore IV | Adreno 203 | Adreno 305 |
| RAM | 1 GB | 1 GB | 1 GB |
| Internal Memory | 8 GB | 8 GB | 8 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | Capacitive touchscreen | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 2 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 4.3 inches | 4.7 inches |
| Resolution | 480 x 800 pixels (187 ppi) | 480 x 800 pixels (217 ppi) | 720 x 1280 pixels (312 ppi) |
| Screen-to-Body Ratio | 64.20% | 60.19% | 64.61% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 5 MP, 2592x1944 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection | Auto focus, 1.4 µm Pixel Size, Geo-tagging, Touch Focus, Face And Smile Detection, HDR |
| Video | Yes, 1080p@30fps | Yes, 480p@30fps | 1080p@30fps |
| Front Camera | Yes, 2 MP [Similar] | Yes, VGA [Similar] | 1.3 MP, 720p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, HSUPA |
| Bluetooth | Yes, v4.0 with A2DP, LE, EDR | Yes, v3.0 with A2DP | v4.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | 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, USB On-the-go |
| GPS | Yes, with A-GPS, support and GLONASS | Yes, with A-GPS support | Yes, with A-GPS |
| Browser | HTML5 | HTML | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 8 GB, 1 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 32 GB | microSD, up to 32 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 | Standard battery, Li-Ion | Li-Ion Battery | Li-Po Battery |
| Capacity | 2100 mAh | 1800 mAh | 2000 mAh |
| Stand by | Up to 440 h | Up to 500 h (2G) Up to 300 h (3G) |
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| Talk Time | Up to 10 h 10 min | Up to 14 h (2G) Up to 9 h (3G) |
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