Best recommended phone

[Twotems]

I am in USA on AT&T. It seems they are not any China 5.5" smartphones for 4G Lte for USA.
Why is this

Asus Zenfone 2 has all the frequencies along with a US warranty. You can buy it direct from Asus usa online from $199—299 depending on model. I'm on T-Mobile USA, EE UK, Etisalat UAE and MTN Africa (and the dual-sim makes all of that a breeze to handle). It works everywhere and the 4GB model is the phone of the year in my opinion. For the price, features and pure grunt, nothing comes close.