Which Z1 works with Tmobile's LTE?

[oxidax]

Hi everyone,
So im thinking about purchasing a Z1 since the Z1s looks like will never get an update or a bootloader unlock, but I cant figure out which Z1 will properly work with Tmobile.
I know that the Wi-Fi calling won't work but I just really want the LTE.
The two models I see are the 6903 and the C6902. Dont know if theres any more.

Thanks!

 

[androidfreak70]

Thats Xperia Z forum not Z1

Xperia™ Z (C6602) with tapatalk