The Samsung Galaxy S II is an Android 2.3 Gingerbread smartphone which is the successor to the popular Samsung Galaxy S. The Galaxy S2 brings an updated set of features in an even sleeker frame. The device features up to 16GB of internal memory which can be expanded through microSD, an 8 megapixel camera capable of 1080p HD video recording, an additional 2 megapixel camera for video calls and is powered by a 1.2 GHz dual-core processor with 1 GB of RAM.
The full Samsung Galaxy S II specifications follow:
Variants
- Samsung Galaxy S II (International)
- Samsung Galaxy S II for AT&T
- Samsung Galaxy S II for T-Mobile
- Samsung Galaxy S II for Sprint
- Samsung Galaxy S II Duos
- Samsung Galaxy S II Skyrocket
- Samsung Galaxy S II Skyrocket HD
- Samsung Galaxy S II Plus
- Samsung Galaxy S II 4G (I9100M) / LTE / X / HD LTE / I9100G
Samsung Galaxy S II (International I9100)
| Announced | February 13, 2011 (Released April 28, 2011) |
| A.K.A. | Samsung I9100 |
| Dimensions | 125.3 x 66.1 x 8.5 mm; 116 g |
| Display | 4.3" Super AMOLED Plus (480 x 800), Gorilla Glass, 217 ppi |
| Connectivity | HSPA+ 21 Mbps, Wi-Fi Direct, DLNA, Bluetooth 3.0+HS, USB OTG |
| Camera | 8 MP Rear (1080p @ 30fps); 2 MP Front |
| Memory | 16GB / 32GB Internal, 1 GB RAM, microSD (up to 32GB) |
| Hardware | Exynos 4210, 1.2GHz Dual-core Cortex-A9, Mali-400 GPU |
| Battery | Li-Ion 1650 mAh; Stand-by up to 710h (2G) / 610h (3G) |
| OS | Android 2.3.4 Gingerbread (TouchWiz 4.0 UI) |
Samsung Galaxy S II for AT&T
| Announced | August 30, 2011 (Released October 2, 2011) |
| A.K.A. | SGH-i777, Samsung Attain |
| Dimensions | 126 x 66 x 8.9 mm; 121.9 g |
| Connectivity | UMTS 850 / 1900 / 2100 MHz (AT&T) |
| Battery | Li-Ion 1650 mAh; Stand-by up to 400h; Talk up to 8h |
Samsung Galaxy S II for T-Mobile
| Announced | August 30, 2011 (Released October 2, 2011) |
| A.K.A. | SGH-T989, Galaxy S II X, Hercules |
| Dimensions | 129.8 x 68.8 x 9.4 mm; 135 g |
| Connectivity | UMTS 850 / 1900 / 2100 MHz (T-Mobile) |
| Battery | Li-Ion 1650 mAh; Stand-by up to 400h; Talk up to 8h |
We list only the specs that are different than the main variant.

