The Samsung Galaxy S II for T-Mobile is a powerful Android smartphone that comes in a pocket-friendly design. This device is one of the fastest smartphones on the market, and runs on America's largest 4G network. The powerful 1.5 GHz dual core processor provides extremely smooth gaming experience. The 4.52 inch Super AMOLED Plus touchscreen is perfect for viewing pictures taken on the high-end 8 megapixel camera on the Samsung Galaxy S II. The Samsung Galaxy S II for T-Mobile runs on the Android 2.3.5 operating system, which is the newest Android platform for smartphones. Android 2.3.5 gives you access to all of the hottest apps and games! You can really have it all with the Samsung Galaxy S II for T-Mobile.