The Samsung Galaxy S II (or Galaxy S2) is an Android smartphone.It  is presently the second thinnest Dual-Core smartphone in the world.The Galaxy S II is the successor to the Samsung Galaxy S. It features a 1.2 GHz dual-core SoC processor, It has 1 GB of RAM, a 10.8 cm (4.3 in) WVGA Super AMOLED plus display and an 8 megapixel camera with flash that can record videos in full high definition 1080p.It is one of the first devices to support Mobile High-definition Link,which allows up to 1080p uncompressed video output with HDMI while charging the device at the same time. Support for the USB On-The-Go (USB OTG) function.

poositives:

* Awesome screen

* Very light

* Fairly thin

* UI is ultra smooth

* It can be rooted, and custom ROMs already exist

* It comes with Android 2.3

* It comes with Polaris Office

* MicroSD card slot

Specifications:

It's the best Android smartphone yet,and the greatest smartphone till now. if you're asking what smartphone to buy today,Samsung Galaxy S II is the clear choice.