Phone Comparison - Samsung I9100 Galaxy S II vs Samsung Google Nexus S vs Nokia Lumia 525
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| Manufacturer | Samsung | Samsung | Nokia |
| Announced | February 2011 | December 2010 | November 2013 |
| Status | Available - April 2011 | Available - December 2010 | Available - January 2014 |
| Colors | Black, White, Pink | Black, White | Yellow, orange, white, black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
125.3 x 66.1 x 8.5 mm (4.93 x 2.6 x 0.33 in) |
123.9 x 63 x 10.9 mm (4.88 x 2.48 x 0.43 in) |
119.9 x 64 x 9.9 mm (4.72 x 2.52 x 0.39 in) |
| Weight | 116 g (4.09 oz) | 129 g (4.55 oz) | 124 g (4.37 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 900 / 1700 / 2100 | HSDPA 900 / 2100 HSDPA 850 / 1900 / 2100 |
| Messaging | SMS, MMS, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | - | Super sensitive touch for finger nail and glove use, Changeable backcover |
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| OS | Android OS, v2.3 (Gingerbread), planned upgrade to v4.0 | Android OS, v2.3 (Gingerbread), v4.1.2 (Jelly Bean), not upgradable to v4.2 (Jelly Bean) | Microsoft Windows Phone 8 |
| Processor | Dual-core 1.2GHz ARM Cortex-A9 processor, Exynos chipset | 1 GHz Cortex-A8, Hummingbird | Dual-core 1 GHz, Qualcomm MSM8227 Snapdragon S4 |
| GPU | Mali-400MP | PowerVR SGX540 | Adreno 305 |
| RAM | 1 GB | 512 MB | 1 GB |
| Internal Memory | 16 GB/32 GB storage | 16 GB storage | 8 GB ROM |
| External Memory | microSD, up to 32GB, 8 GB included | No | microSD, up to 64 GB |
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| Type | Super AMOLED Plus capacitive touchscreen | Super AMOLED capacitive touchscreen | IPS LCD Capacitive Touchscreen, 2D Hardened Glass |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.3 inches | 4.0 inches | 4.0 inches |
| Resolution | 480 x 800 pixels (217 ppi) | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 63.52% | 58.46% | 59.47% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | No | FM Radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 5 MP, 2560 x 1920 pixels | 5 MP, 2592х1944 pixels |
| Flash | LED flash | LED flash | No |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch Focus | Auto focus, Geo-tagging, Touch Focus, Face Detection, Nokia Smart Camera, Cinemagraph lens, Panorama lens, Bing vision |
| Video | Yes, 1080p@30fps | Yes, WVGA@30fps | Yes, 720p@30fps |
| Front Camera | Yes, 2 MP [Similar] | Yes, VGA [Similar] | No [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 12 | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0+HS | Yes, v2.1 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n |
| USB | Yes, v2.0 microUSB (MHL), USB On-the-go | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS |
| Browser | HTML | HTML, Adobe Flash | HTML5 |
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| Internal | 16GB/32GB storage, 1 GB RAM | 16GB storage, 512 MB RAM | 8 GB ROM, 1 GB RAM |
| Expandable Storage | microSD, up to 32GB, 8 GB included | No | microSD, up to 64 GB |
| USB OTG | Supported | - | - |
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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 | Li-Ion Battery |
| Capacity | 1650 mAh | 1500 mAh | 1430 mAh |
| Stand by | Up to 710 h (2G) Up to 610 h (3G) |
Up to 713 h (2G) Up to 428 h (3G) |
Up to 336 h |
| Talk Time | Up to 18 h 20 min (2G) Up to 8 h 40 min (3G) |
Up to 14 h (2G) Up to 6 h 40 min (3G) |
Up to 16 h 54 min (2G) Up to 10 h 36 min (3G) |
