The European version supports LTE Cat13 800/850/900/1800/1900/2100/2600 (Bands 1,2,3,5,7,8,20) TD-LTE 2600 (Bands 38), so it will - at the very least - work on T-Mobile in the US (2,4,5,12,66,71). I *hope* they don't relegate it just to the EU version (H3113), because band 28 on my Xperia X (F5121) works best in my area in the US.