Samsung Galaxy 551 is another combination between the two technologies: touchscreen and traditional QWERTY keyboard. Looking at the specs, Samsung Galaxy 551 is a medium class smartphone, though it has all the possible features you may want, plus the latest Android OS, v2.2 (Froyo). Thanks to the 3,2" touchscreen, the smartphone is easy to hold and keep in the pocket, but in the same time, it is being able to assist you with all the tasks you may have for it.