TMO Band 12 / 700 mhz phones
- Nexus 6
- Xperia Z3 (needs an update from TMO to unlock)
- Samsung Note 4, Note Edge
I'm pretty sure I read Samsung S6/S6 Edge and HTC M9 will have it as well.
Well, you only have 6 choices for band-12 compatible devices(unless more devices have popped up)
Samsung Galaxy Avant (band 12 disabled right now)
Samsung Galaxy Note 4
Samsung Galaxy Note Edge
ZTE ZMax
Sony Xperia Z3 (band 12 disabled right now)
Motorola Nexus 6