Sony Xperia Z5 Premium E6853 Factory Unlocked Phone, 5.5-Inch 4K UHD Display, Black International Version 32GB, 3 GB RAM, Up to 200 GB microSDTM card GoogleTM AndroidTM 5.1 (Lollipop) Hi-res audio delivers a fully immersive and spectacularly detailed audio experience Nano SIM; Works with GSM carriers such as AT&T, T-Mobile etc. AT&T, T-Mobile & other GSM carriers ; LTE compatibility: This is international stock, varies per carrier (ensure to check with your carrier before purchase); DOES NOT work with Sprint, Verizon, U.S. Cellular and all other CDMA carriers.