Phone Comparison - Apple iPhone 4 vs Samsung Galaxy Grand Duos I9082 vs Nokia Lumia 720
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| Manufacturer | Apple | Samsung | Nokia |
| Announced | June 2010 | December 2012 | February 2013 |
| Status | Available - June 2010 | Available - January 2013 | Available - April 2013 |
| Colors | Black, White | Black, White | White, Red, Yellow, Cyan/Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in) |
143.5 x 76.9 x 9.6 mm (5.65 x 3.03 x 0.38 in) |
127.9 x 67.5 x 9 mm (5.04 x 2.66 x 0.35 in) |
| Weight | 137 g (4.83 oz) | 162 g (5.71 oz) | 128 g (4.52 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 1900 / 2100 - SIM 1 only HSDPA 900 / 1900 / 2100 - SIM 1 only |
HSDPA 850 / 900 / 1900 / 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | iOS 4, upgradable to iOS 5 | Android OS, v4.1.2 (Jelly Bean) | Microsoft Windows Phone 8 |
| Processor | 1 GHz Cortex-A8, Apple A4 | Dual-core 1.2 GHz Cortex-A9, Broadcom | Dual-core 1 GHz, Qualcomm MSM8227 |
| GPU | PowerVR SGX535 | Broadcom VideoCore IV | Adreno 305 |
| RAM | 512 MB | 1 GB | 512 MB |
| Internal Memory | 8/16/32 GB storage | 8 GB | 8 GB storage |
| External Memory | No | microSD, up to 64 GB | microSD, up to 64 GB |
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| Type | LED-backlit IPS TFT, capacitive touchscreen | Capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.5 inches | 5.0 inches | 4.3 inches |
| Resolution | 640 x 960 pixels (330 ppi) | 480 x 800 pixels (187 ppi) | 480 x 800 pixels (217 ppi) |
| Screen-to-Body Ratio | 53.92% | 64.20% | 60.94% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | Stereo FM radio with RDS | No |
| Games | Yes + downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592 x 1944 pixels | 8 MP, 3264x2448 pixels | 6.7 MP, Carl Zeiss optics |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Touch Focus, Geo-tagging, HDR | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging |
| Video | Yes, 720p@30fps, LED video light, geo-tagging | Yes, 1080p@30fps | Yes, 720p@30fps |
| Front Camera | Yes, videocalling over Wi-Fi only [Similar] | Yes, 2 MP [Similar] | Yes, 1.3 MP [Similar] |
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| GPRS | Class 10 (4+1/3+2 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 10, 236.8 kbps | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.1 with A2DP | Yes, v4.0 with A2DP, LE, EDR | Yes, v3.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual-band |
| USB | Yes, v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS, support and GLONASS | Yes, with A-GPS support and GLONASS |
| Browser | HTML (Safari) | HTML5 | HTML5 |
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| Internal | 8/16/32 GB storage, 512 MB RAM | 8 GB, 1 GB RAM | 8 GB storage, 512 MB RAM |
| Expandable Storage | No | microSD, up to 64 GB | microSD, up to 64 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-Po | Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | 1420 mAh | 2100 mAh | 2000 mAh |
| Stand by | Up to 300 h (2G) Up to 300 h (3G) |
Up to 440 h | Up to 520 h |
| Talk Time | Up to 14 h (2G) Up to 7 h (3G) |
Up to 10 h 10 min | Up to 23 h 20 min (2G) Up to 13 h 20 min (3G) |
