
Both HTC sensation and Galaxy S2 are having Android 2.3 Gingerbread Version, which is latest from Google, meant for Smartphones with Powerful Hardware.
Display :
Coming to display Galaxy S2 sports a 4.27 Super Amoled Display with display resolution of 400×800 pixels, large enough to be a decent smartphone.
On the other Hand HTC sensation has a 4.3 inch qHD display with 540×960 display resolution. Certainly HTC here has an edge over Galaxy S2 with a better Screen Resolution maintaining the HD standards.
Camera:
Both the smartphones have high quality front and rear camera helping you with clicking pictures, videos and initiate comfortable Video Conference calls.
HTC Sensation: 8MP rear , 1.2MP front
Samsung galaxy S2 : 8MP rear , 2MP front (S2 has a better front Camera )
Processors :
HTC Sensation will be powered By 1.2 GHz dual core processor Qualcomm Snapdragon, with Adreno 220 GPU. Now thats Some real Power. Where as Samsung galaxy S2 will come with two/three variants featuring Exynos 1.2 GHz processor, 1 GHz processor and nVIDIA Tegra 250 1 GHz dual core processors. This is something to lookout for ,if experts are to believed all the variants above mentioned are above par excellence in Mobile processing. So On the processor front Both the phones are Battling it tight.
RAM :
Now heres something you look out after processor specification that is the RAM which powers the Processor powerhouse for its working. But here thers a Big difference between the two! Galaxy S2 has a 1GB powerhouse RAM where as Sensation will be working on a 768 MB ram, the difference is quite Huge. 1GB ram means faster and smoother processing.
Software and GUI:
Both the Phones come with Android OS so you just have to go To the App market for your Apps. With Android They have GUI built over it , Samsung Galaxy S2 will be having GUI similar to Galaxy S, but HTC Sense 3.0 offers a much better experience than Samsung’s Touchwiz.