For US buyers: This smartphone is compatible/will work with any GSM networks such as AT&T and T-Mobile. For exact compatibility with 2nd generation GSM, 3G, 4G/LTE, please check with your network provider in advance before purchasing. This phone will not work with any CDMA networks such as Verizon, Sprint and WS Cellular. | Two connection chips (dual standby mode), Network compatibility: Connection chip 1 [2G GSM | 3rd generation UMTS 800(B6) / 800(B19) / 850(B5) / 900(B8) / 1700|2100(B4) / 1800(B3) / 1900(B2) / 2100(B1) | 4 700 JCT (B12) / 700(B13) / 700(B17) / 700(B28) / 700(B29) / 800(B18) / 800(B19) / 800(B20) / 850(B5) / 900(B8) / 1500(B32) / 1700|2100(B5) 4) / 18 00(B3) / 1900(B2) / 2100(B1) / 2600(B7) | TD-LTE : 1900(B39) / 2000(B34) / 2300(B40) / 2500(B41) / 2600(B38) / 5900(B46) ] and SIM card 2 [ 2G 2G GSM ] | Full display 6AMOLED FHD+ (2160x1080) 90 Hz, 1 ms response time | 512 GB storage capacity, 8 GB LPDDR4X RAM, 4000 mAh battery and support fast charging 4.0 | Qualcomm Snap Dragon 845 eight-core processor up to 2.96 GHz, programmable ultrasonic Eritreager touch sensors give you two extra fingers for gaming, 8 MP/12 MP front-facing cameras with OIS/EIS+8MP wide-angle rear cameras