Phone Comparison - Apple iPhone 4S vs Lenovo S920 vs Samsung Galaxy S Duos 2 S7582
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| Manufacturer | Apple | Lenovo | Samsung |
| Announced | October 2011 | March 2013 | November 2013 |
| Status | Available - October 2011 | Available - May 2013 | Available - November 2013 |
| Colors | Black, White | White, Blue | White, 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) |
154 x 77.7 x 7.9 mm (6.06 x 3.06 x 0.31 in) |
121.5 x 63.1 x 10.57 mm (4.78 x 2.48 x 0.42 in) |
| Weight | 140 g (4.94 oz) | 159 g (5.61 oz) | 118 g (4.16 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 CDMA2000 1xEV-DO |
GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 900 / 2100 | HSDPA 900 / 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | iOS 5 | Android OS, v4.2 (Jelly Bean) | Android OS, v4.2 (Jelly Bean) |
| Processor | 1 GHz dual-core ARM Cortex-A9 processor, Apple A5 chipset | Quad-core 1.2 GHz Cortex-A7, MTK 6589 | Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664 |
| GPU | PowerVR SGX543MP2 | PowerVR SGX544 | Broadcom VideoCore IV |
| RAM | 512 MB | 1 GB | 768 MB |
| Internal Memory | 16/32/64 GB storage | 4 GB | 4 GB (1.9 GB user available) |
| External Memory | No | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | LED-backlit IPS TFT | IPS LCD capacitive touchscreen | TFT Capacitive Touchscreen, PLS |
| Colors | capacitive touchscreen | 16M colors | 16M colors |
| Size | 3.5 inches | 5.3 inches | 4.0 inches |
| Resolution | 640 x 960 pixels (330 ppi) | 720 x 1280 pixels (277 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 53.92% | 64.76% | 59.52% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | Stereo FM radio with RDS |
| Games | Downloadable, incl. motion-bas | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 8 MP, 3264 x 2448 pixels | 5 MP, 2592х1944 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Touch Focus, Geo-tagging, Face Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging |
| Video | Yes, 1080p@30fps, LED video light, video stabilization, geo-tagging | Yes | Yes, 720p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes, 2 MP [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes |
| Edge | Yes | Class 12 | Yes |
| 3G | HSDPA, 14.4 Mbps; HSUPA, 5.8 Mbps | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v4.0 with A2DP | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual band | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, Wi-Fi Direct |
| USB | Yes, v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS |
| Browser | HTML (Safari) | HTML | HTML5 |
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| Call Records | 100 received, dialed and missed calls | Practically unlimited | Practically unlimited |
| Internal | 16/32/64 GB storage, 512 MB RAM | 4 GB, 1 GB RAM | 4 GB (1.9 GB user available), 768 MB RAM |
| Expandable Storage | No | microSD, up to 32 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 | Standard battery, Li-Po | Li-Po Battery | Standard battery, Li-Ion |
| Capacity | 1432 mAh | 2250 mAh | 1500 mAh |
| Stand by | Up to 200 h (2G) Up to 200 h (3G) |
Up to 480 h (2G) Up to 480 h (3G) |
Up to 280 h (3G) |
| Talk Time | Up to 14 h (2G) Up to 8 h (3G) |
Up to 25 h (2G) Up to 12 h (3G) |
Up to 8 h (3G) |
