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Apple iPhone 4S |
Samsung Galaxy 551 |
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| Manufacturer | Apple | Samsung |
| Announced | October 2011 | October 2010 |
| Status | Available - October 2011 | Available - Q4 2010 |
| Colors | Black, White | Black |
| Form Factor | Candybar | Candybar |
| Dimension |
115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in) |
111 x 55 x 15.2 mm (4.37 x 2.17 x 0.6 in) |
| Weight | 140 g (4.94 oz) | 117 g (4.13 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 900 / 2100 HSDPA 850 / 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | iOS 5 | Android OS, v2.2 (Froyo), upgradable to v2.3.6 (Gingerbread) |
| Processor | 1 GHz dual-core ARM Cortex-A9 processor, Apple A5 chipset [Similar] | 600 MHz, Qualcomm MSM7227 [Similar] |
| GPU | PowerVR SGX543MP2 [Similar] | Adreno 200 [Similar] |
| RAM | 512 MB [Browse Similar] | N/A |
| Internal Memory | 16/32/64 GB storage | 160 MB |
| External Memory | No | microSD, up to 32 GB, 1 GB included |
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| Type | LED-backlit IPS TFT | TFT capacitive touchscreen |
| Colors | capacitive touchscreen | 16M colors |
| Size | 3.5 inches [Similar] | 3.2 inches [Similar] |
| Resolution | 640 x 960 pixels (330 ppi) | 240 x 400 pixels (146 ppi) |
| Screen-to-Body Ratio | 53.92% | 47.59% |
| Multi-Touch | ![]() |
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| 3.5mm Jack | ![]() |
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| Radio | No | Stereo FM radio with RDS |
| Games | Downloadable, incl. motion-bas | Yes + Downloadable |
| Loud Speaker | ![]() |
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| Rear Camera | 8 MP, 3264x2448 pixels [Similar] | 3.15 MP, 2048x1536 pixels [Similar] |
| Flash | LED flash | No |
| Features | Auto focus, Touch Focus, Geo-tagging, Face Detection, HDR | Auto focus, |
| Video | Yes, 1080p@30fps, LED video light, video stabilization, geo-tagging | Yes, QVGA@15fps |
| Front Camera | Yes, VGA [Similar] | No [Similar] |
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| GPRS | Yes | Class 10 (4+1/3+2 slots), 32 - 48 kbps |
| Edge | Yes | Class 12 |
| 3G | HSDPA, 14.4 Mbps; HSUPA, 5.8 Mbps | HSDPA, 7.2 Mbps; HSUPA |
| Bluetooth | Yes, v4.0 with A2DP | Yes, v2.1 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot |
| USB | Yes, v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support |
| Browser | HTML (Safari) | HTML |
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| Call Records | 100 received, dialed and missed calls | Practically unlimited |
| Internal | 16/32/64 GB storage, 512 MB RAM | 160 MB |
| Expandable Storage | No | microSD, up to 32 GB, 1 GB included |
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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-Ion Battery |
| Capacity | 1432 mAh | 1200 mAh |
| Stand by | Up to 200 h (2G) Up to 200 h (3G) |
Up to 520 h (2G) Up to 370 h (3G) |
| Talk Time | Up to 14 h (2G) Up to 8 h (3G) |
Up to 9 h (2G) Up to 5 h (3G) |