[jtbayly]

Can you use the M8 on carriers other than T-Mobile? I’m seeing several places that say T-mobile only.

[jcul]

It's probably worth double checking the bands they support.

I had the M6 before and I had issues where it would have coverage but calls would go straight to voicemail.

Maybe it was just an issue with that phone, I returned it.

I never had any problems with the M8 Flip.

[ajford]

Haven't used the M8, but I just set up an AGM M9 on Mint Mobile two days ago.

That said, that's kinda cheating since Mint is a T-Mobile MVNO and I haven't tried it outside my usual T-Mobile service area.