Hi - I'm a T-Mobile customer preparing to buy an iPhone 6 Plus. I'm tempted to buy the (unlocked) Verizon version to use on T-Mobile because it is a "world phone" that has CDMA as well as GSM. I've seen contradictory information about whether there would be any drawbacks to doing this instead of buying an unlocked T-Mobile version from Apple.
This thread says a Verizon iPhone 6 on T-Mobile will experience slower LTE speeds:
However, multiple other online conversations I've seen indicated it should work just fine.
I'm also trying to determine whether if I buy two Verizon iPhone 6 phones (for my wife and me) and we both use it on the T-Mobile network, we will get the HD Voice feature. T-Mobile says both phones need to be on the T-Mobile network to get HD Voice, but it isn't clear whether they both have to originally be T-Mobile phones. I know that HD Voice doesn't work across carriers because of different implementations, but I'm wondering if the Verizon iPhone itself implements this differently.
Best answer by johnmed3
it should work fine, with t-mobile lte. the hd voice won't work as t-mobile bis the only one that has hd voice. the verizon models will not have the hd voice. you are probably better off getting the t-mobile version.