Phone Comparison - Samsung Galaxy S Duos S7562 vs OPPO Joy vs Samsung Galaxy E7
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| Manufacturer | Samsung | Oppo | Samsung |
| Announced | July 2012 | April 2014 | January 2015 |
| Status | Available - September 2012 | Available - April 2014 | Available - Feburary 2015 |
| Price | - | - | Rs. 17,400 ($255.88) [Similarly Priced] |
| Colors | White | White, Black | Black, White, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
121.5 x 63.1 x 10.5 mm (4.78 x 2.48 x 0.41 in) |
124 x 63 x 9.9 mm (4.88 x 2.48 x 0.39 in) |
151.4 x 77.2 x 7.3 mm (5.96 x 3.04 x 0.29 in) |
| Weight | 120 g (4.23 oz) | 125 g (4.41 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 (optional) |
| 3G Network | HSDPA 900 / 2100 | HSDPA 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4.4 (KitKat) |
| Processor | 1 GHz Cortex-A5, Qualcomm MSM7227A Snapdragon | Dual-core 1.3 GHz | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410 |
| GPU | Adreno 200 | - | Adreno 306 |
| RAM | 768 MB | 512 MB | 2 GB |
| Internal Memory | 4 GB storage | 4 GB ROM | 16 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 128 GB |
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| Type | TFT capacitive touchscreen | TFT Capacitive Touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 4.0 inches | 5.5 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (233 ppi) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | 59.52% | 58.42% | 71.36% |
| 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 | 5 MP, 2592х1944 pixels | 3 MP, 2048 x 1536 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging | Geo-tagging, Face Detection, Panorama | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama |
| Video | Yes, FWVGA@30fps | Yes, 720p | 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes, VGA [Similar] | 5 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 42.2/5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v2.0 A2DP, EDR | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Yes |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS, GLONASS |
| Browser | HTML, Adobe Flash Lite | HTML | HTML5 |
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| Internal | 4 GB storage, 768 MB RAM | 4 GB ROM, 512 MB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 128 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 | Non-removable Li-Ion Battery |
| Capacity | 1500 mAh | 1700 mAh | 2950 mAh |
| Stand by | Up to 445 h (2G) Up to 330 h (3G) |
- | - |
| Talk Time | Up to 13 h (2G) Up to 7 h 25 min (3G) |
- | Up to 19 h (3G) |
