Display: 4.3" or 4.5" Super AMOLED display with 480x800 pixel resolution.
The company announced the Samsung Galaxy S2 on 13 February 2011.
Touch sensors for navigation keys no dedicated camera shutter button.
Expandable storage: Micro SD Card (SD HC, up to 32 GB).
Back camera: 5 megapixels, 720p (HD) video.
Display: 4.0" Super AMOLED display with 480x800 pixel resolution.
The original Samsung Galaxy S smartphone was announced in March 2010 and released on 4 June 2010. Main article: Comparison of Samsung Galaxy S smartphones Samsung Galaxy S