This device is compatible with any GSM carrier outside of the United States. In the United States, this device is only compatible with T-Mobile and their MVNO's(Mint, Ultra, Ting, Tello, etc.)
Screen: Super AMOLED display with 90Hz refresh rate and peak brightness of 800 nits (HBM) | Size: 6.5 inches, 103.7 cm2 screen area with approximately 84.3% screen-to-body ratio | Resolution: 1080 x 2340 pixels with an aspect ratio of 19.5:9 and around 396 pixels per inch density
Operating System: Android; Cpu Model Family: mediatek_helio