If you buy this phone and live anywhere considered a mid to low signal area on the Sprint network, you will regret it. Sprint and Samsung will lie to you about the problem and blame each other but the truth is that the antenna used in this phone is below par for CDMA networks and when the phone encounters anything below an average signal, YOU WILL suffer loss of service. I've had my phone tested at a Sprint store and they said it was good, but they test over a very strong signal (most stores has signal repeaters).
BUY THIS PHONE KNOWING THAT THIS PROBLEM EXISTS AND MORE THAN LIKELY WILL NOT BE FIXED BY SPRINT OR SAMSUNG AS BOTH DENY KNOWING ANYTHING ABOUT THIS ISSUE.