Bluboo X550 4G LTE 5300mah Big Battery 5.5 Inch HD IPS MTK6735 Quad Core Android 5.1 Mobile Cell Phone 8MP CAM 2GB 16GB (Black) MTK6735 quad core 1.3GHz Li-Polymer:5300 mAh Battery RAM:2GB+ROM16GB 2G GSM: 850/900/1800/1900MHz 3G WCDMA: 1900//2100MHz 4G FDD LTE: B1/3/7/8/20 WIFI, FM, Bluetooth, Ebook, Email, Messaging, Wallpapers, Calendar, Calculator, Clock, Camera,etc