Phone Comparison - Samsung Galaxy Grand Duos I9082 vs Xiaomi Mi 4i vs Oppo Neo 7
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| Manufacturer | Samsung | Xiaomi | Oppo |
| Announced | December 2012 | April 2015 | October 2015 |
| Status | Available - January 2013 | Available - April 2015 | Available - October 2015 |
| Price | - | Rs. 8,999 ($132.34) [Similarly Priced] | Rs. 8,459 ($124.40) [Similarly Priced] |
| Colors | Black, White | Black, White, Blue, Yellow, Pink | Blue, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
143.5 x 76.9 x 9.6 mm (5.65 x 3.03 x 0.38 in) |
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) |
142.7 x 71.7 x 7.6 mm (5.62 x 2.82 x 0.3 in) |
| Weight | 162 g (5.71 oz) | 130 g (4.59 oz) | 141 g (4.97 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 1900 / 2100 - SIM 1 only HSDPA 900 / 1900 / 2100 - SIM 1 only |
HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 - Global HSDPA 850 / 900 / 2100 - 3G model |
| 4G Network | - | LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 40(2300) - Global |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | Android OS, v4.1.2 (Jelly Bean) | Android OS, v5.0 (Lollipop) | Android OS, v5.1 (Lollipop) |
| Processor | Dual-core 1.2 GHz Cortex-A9, Broadcom | Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 | Quad-core 1.3 GHz Cortex-A7 - 3G model Quad-core 1.2 GHz Cortex-A53 - 4G model, Mediatek MT6582 - 3G model Qualcomm MSM8916 Snapdragon 410 - 4G model |
| GPU | Broadcom VideoCore IV | Adreno 405 | Mali-400MP2 Adreno 306 |
| RAM | 1 GB | 2 GB | 1 GB |
| Internal Memory | 8 GB | 16/32 GB | 16 GB |
| External Memory | microSD, up to 64 GB | No | microSD, up to 128 GB (32 GB for 3G model) |
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| Type | Capacitive touchscreen | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.0 inches | 5.0 inches |
| Resolution | 480 x 800 pixels (187 ppi) | 1080 x 1920 pixels (441 ppi) | 540 x 960 pixels (220 ppi) |
| Screen-to-Body Ratio | 64.20% | 71.57% | 67.54% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM radio | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 13 MP, 4128 x 3096 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/smile Detection, Panorama, HDR | Auto focus, 1/4' Sensor Size, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | Yes, 1080p@30fps | 1080p@30fps | Yes |
| Front Camera | Yes, 2 MP [Similar] | 5 MP [Similar] | 2 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA, LTE | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps - 4G model HSPA 21.1/5.76 Mbps - 3G model |
| Bluetooth | Yes, v4.0 with A2DP, LE, EDR | v4.0, A2DP | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | Wi-Fi 802.11 b/g/n, hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0 | microUSB v2.0, USB Host |
| GPS | Yes, with A-GPS, support and GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 16/32 GB, 2 GB RAM | 16 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | No | microSD, up to 128 GB (32 GB for 3G model) |
| 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-Po Battery | Non-removable Li-Po Battery |
| Capacity | 2100 mAh | 3120 mAh | 2420 mAh |
| Stand by | Up to 440 h | - | Up to 218 h (3G) |
| Talk Time | Up to 10 h 10 min | - | Up to 16 h (3G) |
