Phone Comparison - OPPO Joy vs Samsung Galaxy J1 vs Xiaomi Redmi 2
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| Manufacturer | Oppo | Samsung | Xiaomi |
| Announced | April 2014 | January 2015 | January 2015 |
| Status | Available - April 2014 | Available - January 2015 | Available - January 2015 |
| Price | - | Rs. 5,850 ($86.03) [Similarly Priced] | Rs. 5,999 ($88.22) [Similarly Priced] |
| Colors | White, Black | Blue, Black, White | Black, White, Yellow, Pink, Green |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
124 x 63 x 9.9 mm (4.88 x 2.48 x 0.39 in) |
129 x 68.2 x 8.9 mm (5.08 x 2.69 x 0.35 in) |
134 x 67.2 x 9.4 mm (5.28 x 2.65 x 0.37 in) |
| Weight | 125 g (4.41 oz) | 122 g (4.3 oz) | 133 g (4.69 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 2100 | HSDPA 900 / 2100 (single or dual SIM) HSDPA 850 / 2100 (dual SIM) |
HSDPA 850 / 1900 / 2100 TD-SCDMA 1900 / 2100 |
| 4G Network | - | - | LTE 1800 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600 (Bands 3, 7, 38, 39, 40, 41) |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4.x (KitKat) | Android OS, v4.4 (KitKat) |
| Processor | Dual-core 1.3 GHz | Dual-core 1.2 GHz Cortex-A7 | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410 |
| GPU | - | - | Adreno 306 |
| RAM | 512 MB | 512 MB | 1 GB |
| Internal Memory | 4 GB ROM | 4 GB | 8 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 128 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 | 16M colors |
| Size | 4.0 inches | 4.3 inches | 4.7 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (217 ppi) | 720 x 1280 pixels (312 ppi) |
| Screen-to-Body Ratio | 58.42% | 59.80% | 67.83% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | - | FM Radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 3 MP, 2048 x 1536 pixels | 5 MP, 2592 х 1944 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | LED Flash | LED flash |
| Features | Geo-tagging, Face Detection, Panorama | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Sony Sensor, Panorama, Real-time HDR |
| Video | Yes, 720p | 720p@30fps | Yes, 1080p |
| Front Camera | Yes, VGA [Similar] | 2 MP [Similar] | 2 MP, 720p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | Yes, v2.0 A2DP, EDR | v4.0, A2DP | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML | HTML | HTML5 |
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| Internal | 4 GB ROM, 512 MB RAM | 4 GB, 512 MB RAM | 8 GB, 1 GB RAM / 16 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 128 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-Po Battery |
| Capacity | 1700 mAh | 1850 mAh | 2200 mAh |
| Stand by | - | - | - |
| Talk Time | - | Up to 10 h (3G) | - |
