The ebay retailer I want to purchase it from says that 4G (and 3G) will not work because T-Mobile requires the AWS band.
PhoneArena says E5653 works on Bands 28, 5, 8, 3, 1, 7
T-Mobile Wiki says their band # is 4. (1700/2100 MHz AWS)
PhoneArena says the phone works on UMTS 2100MHz
So the one...