I'm currently on an AT&T plan in the middle of a 2 year contract, but I was able to reserve online at the Apple store a TMobile 6s Plus 64GB. Would Apple sell it to me for full price even if I'm not with Tmobile? And would the Phone work on AT&T?
Based on the stats that Apple provided, the AT&T version has the same CDMA radios as Verizon and Sprint. However, as KPOM mentioned, they might give you a hard time for bringing this version of the phone to their network (they might think it's GSM only). In any case, you should still be able to use it.Is the AT&T unlocked version compatible with all carriers, including Verizon.
Apple doesn't sell this model outright, how do you buy it?
Based on the stats that Apple provided, the AT&T version has the same CDMA radios as Verizon and Sprint. However, as KPOM mentioned, they might give you a hard time for bringing this version of the phone to their network (they might think it's GSM only). In any case, you should still be able to use it.
The only way you can buy it is if you have or are getting new service with AT&T. They'll sell you the phone so long as they provide the registered SIM with AT&T. I've heard some people are just getting it, then cancelling their service.
That's in store and online. If you're looking at the Apple App Store app or via web, you'll want to select - AT&T / Replace this phone OR Replace for another Phone / Paid in Full. I wouldn't buy directly from AT&T - though from what you say, that's not likely going to happen.Yes but is that in store? there is no option for that online. Full disclosure, I'm on AT&T and have been for many many years I always buy the phone outright, usually from Verizon, because I do not want a contract and I want the flexibility to jump, specifically to Verizon. AT&T service is pretty bad for me.