Both the Amaze 4G and Galaxy S II support 42Mbps downloads on T-Mobile's HSPA+ network and 1.5GHz Snapdragon S3 processors, but the Amaze has a f/2.2 backside illuminated camera and two dedicated hardware buttons for taking photos or video. The Galaxy S II has a 4.5-inch Super AMOLED Plus screen and lacks the hardware buttons of the Amaze.