Phone Comparison - Samsung I9100 Galaxy S II vs Samsung I9105 Galaxy S II Plus vs Samsung Epic 4G
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | February 2011 | January 2013 | June 2010 |
| Status | Available - April 2011 | Available - February 2013 | Available - September 2010 |
| Colors | Black, White, Pink | Chic White, Dark Blue | 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) |
125.3 x 66.1 x 8.5 mm (4.93 x 2.6 x 0.33 in) |
124 x 65 x 14 mm (4.88 x 2.56 x 0.55 in) |
| Weight | 116 g (4.09 oz) | 121 g (4.27 oz) | 155 g (5.47 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | CDMA 800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | CDMA2000 1xEV-DO HSDPA 2100 |
| Messaging | SMS, MMS, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v2.3 (Gingerbread), planned upgrade to v4.0 | Android OS, v4.1.2 (Jelly Bean) | Android OS, v2.1 (Eclair), upgradable to v2.2 (Froyo) |
| Processor | Dual-core 1.2GHz ARM Cortex-A9 processor, Exynos chipset | Dual-core 1.2 GHz, Broadcom BC28155 | 1 GHz Cortex-A8, Hummingbird |
| GPU | Mali-400MP | Broadcom VideoCore IV | PowerVR SGX540 |
| RAM | 1 GB | 1 GB | 512 MB |
| Internal Memory | 16 GB/32 GB storage | 8 GB storage | N/A |
| External Memory | microSD, up to 32GB, 8 GB included | microSD, up to 64 GB | microSD, up to 32 GB |
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| Type | Super AMOLED Plus capacitive touchscreen | Super AMOLED capacitive touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.3 inches | 4.3 inches | 4.0 inches |
| Resolution | 480 x 800 pixels (217 ppi) | 480 x 800 pixels (217 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 63.52% | 63.52% | 56.62% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | Stereo FM radio with RDS |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 8 MP, 3264x2448 pixels | 5 MP, 2592 x 1944 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection |
| Video | Yes, 1080p@30fps | Yes, 1080p@30fps | Yes, 720p@30fps |
| Front Camera | Yes, 2 MP [Similar] | Yes, 2 MP [Similar] | Yes, VGA [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | Class 10 (4+1/3+2 slots), 32 - 48 kbps |
| Edge | Class 12 | Yes | Class 10, 236.8 kbps |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21.1 Mbps; HSUPA, 5.76 Mbps | EV-DO Rev. A, up to 3.1 Mbps, HSDPA |
| Bluetooth | Yes, v3.0+HS | Yes, v3.0 with A2DP | Yes, v2.1 with A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n; WiMAX, Wi-Fi hotspot (Android 2.2) |
| 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 and GLONASS | Yes, with A-GPS support |
| Browser | HTML | HTML, Adobe Flash | HTML, Adobe Flash Lite |
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| Internal | 16GB/32GB storage, 1 GB RAM | 8 GB storage, 1 GB RAM | 512 MB RAM, 512 MB ROM |
| Expandable Storage | microSD, up to 32GB, 8 GB included | microSD, up to 64 GB | microSD, up to 32 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 | Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | 1650 mAh | 1650 mAh | 1500 mAh |
| Stand by | Up to 710 h (2G) Up to 610 h (3G) |
- | Up to 300 h |
| Talk Time | Up to 18 h 20 min (2G) Up to 8 h 40 min (3G) |
- | Up to 5 h 30 min |
