Color Blue RAM 1GB ROM 4GB Brand OthersBLUBOO Model X4 Quantity 1 Piece Material ABS Shade Of Color Blue Networking WCDMAGSMOthersFDD-LTE Frequency GSM 850/900/1800/1900 Mhz 3G: WCDMA 850/2100 Mhz 4G: FDD-LTE 1800/2600 MHz Data Transfer GPRSHSPAEDGE SIM Type Ordinary SIM SIM Slot 1 Network Standby Single Standby Network Conversation One-Party Conversation Only GPS Yes Wi-Fi 802.11 b/g/n Type Brand New Operating System Android 4.4.2 CPU Processor MTK6582M + 6290 1.3GHz Quad Core CPU. CPU Type Quad-Core Language Indonesian Malay German English Spanish French Italian Portuguese Vietnamese Turkish Russian Chinese Graphics Processor Mali-400MP Released Time 2014-08-15 Available Memory 2.4 GB Memory Card Supports Micro SD / TF card up to 32GB in size (not included) Screen Size 4.5 inch Size Range 4.5-4.9 Inches Touch Screen Capacitive Screen Screen Resolution 854 x 480 Camera 8.0 MP Secondary Camera Lens 2.0 MP Flash Yes Auto Focus Yes Touch Focus Yes Battery Capacity 2100 mAh Battery Type Li-ion battery Talk Time 120 minutes Standby Time 120 Hour Bluetooth Version V2.0 TV No Radio Tuner Yes waterproof level Others Sensor G-sensorproximityOthersLight Sensor I/O Interface Micro USB3.5mmSIM SlotOthersTF slot Software Play Store E-mail Gmail Calculator File manager Clock Calendar Gallery ToDo Video Player Music Sound Recorder Navigation Maps FM Radio etc. Packing List 1 x Phone 1 x AC power charger adapter ( 100~240V / EU plug) 1 x Battery (2100mAh) 1 x Data cable (100cm) 1 x Protect Film 1 x Protect Cover 1 x English user manual