ATNT Phone, Unlocked to work with any GSM SIM Card Carrier. Will Not work with CDMA Carriers like Verizon, Sprint, Boost, etc. PLEASE MAKE SURE YOU CARRIERS LTE BANDS ARE SUPPORTED. Primary : 16 MP, f/1.8, laser autofocus, OIS, LED flash; Secondary : 5 MP Duo, f/2.2; Video 2160p@30fps, 1080p@30fps, 720p@120fps, HDR, stereo sound rec.; 4GB RAM; 64 GB Internal; microSD, up to 256 GB (dedicated slot) OS Android OS, v5.1.1 (Lollipop), upgradable to v6.0 (Marshmallow); Chipset Qualcomm MSM8992 Snapdragon 808; CPU Hexa-core (4×1.4 GHz Cortex-A53 & 2×1.8 GHz Cortex-A57); GPU Adreno 418 Type IPS LCD capacitive touchscreen, 16M colors; 5.7 inches; Resolution 1440 x 2560 pixels (~515 ppi pixel density); Multitouch Yes; Protection Corning Gorilla Glass 4; Secondary display, 160 x 1040 pixels, 2.1 inches Removable Li-Ion 3000 mAh battery; Stand-by Up to 150 h (2G) / Up to 150 h (3G); Talk time Up to 22 h (2G) / Up to 18 h (3G)

Product Features

• 5.7 inches 1440 x 2560 pixels (~515 ppi pixel density), Secondary display, 160 x 1040 pixels, 2.1 inches, Fingerprint Sensor (rear-mounted)
• 64 GB ROM (~50GB after OS), 4GB RAM, microSD, up to 256 GB (dedicated slot) ,CPU Snapdragon 808 Hexa-core 1.2 GHz
• 16 MP, f/1.8, laser autofocus, 5 MP Front Camera, Android OS, v5.1.1
• 4G LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 12(700), 29(700), 30(2300) 3G bands HSDPA 850 / 1700(AWS) / 1900 / 2100
• AT&T Unlocked Phone compatible with GSM SIM cards in U.S. and worldwide Including AT&T, T-Mobile, MetroPCS, Etc. Does not have US warranty. Will NOT work with CDMA Carriers Such as Verizon, Sprint, Boost.