I purchased the F110 pro phone and while I admit I should have checked out the frequency bands supported for my network (T-Mobile), I also admit I did not check because it was advertised as working with the major carriers. I take full responsibility for that. I will say the phone itself is the most amazing phone I've ever had the privilege of holding and using and being able to call my own. It is ALMOST compatible as it is missing the two most important bands utilized by T-Mobile, the extended service bands b41 and n71 that are also used for building penetration. That means if you live in an urban, heavily populated, or otherwise dense area, chances are great this phone will work just fine. It works just fine when I head 2 miles into town and just fine at work. Thanks to my mishap, I'm stuck using cross device services tethering mainly because I still like it more. The rear speaker sounds amazing. The camera is unbeatable. It does work underwater. The screen isn't phased in the slightest by raindrops or melting snow. The fact it is a mediatek makes it all the better. The screen is huge and crystal clear. I just wish it had those two bands, otherwise it would be 100% compatible.