I'm looking to switch from Telus to Wind Mobile and still can't decide which phone to get, mostly due to the UMTS network which I don't really understand, All wind phones use the 1700 and 2100 bands but I'm not sure if the phone i want has to have one of those bands or both. Some help would be appreciated! I'm hoping that i can use an HTC OneX+ that I've been looking at but any HTC or Sony phone with Jellybean would be fine.