Samsung almost made a perfect product but they had to screw up the most important aspect of a phone ..SIGNAL QUALITY ..the phone has horrendous signal issues with 3g and normal call network signal ..its almost unusable indoors!!! I am in Houston and this is a major Sprint area.. it also effects battery life majorly ..example ..I was indoors for 2 hours taking a test and the battery dropped 10 percent without me using it.. and this is not a Sprint problem its a cheap and poor antenna problem ..