* ANDROID System can support all function in the description. * Four functions can't sync with iphone(1. Anti-lost 2. Messaging 3. Notifier 4. Remote Camera ). But all other function can use normally * App download need insert TF card (open the back cover). But basic functions no need to download app Main features: Phone function: GSM :850/900/1800/1900 Quad-band calling, phone book, Hands-free Bluetooth phone call SMS Local SMS, Phone SMS Bluetooth Synchronization (Only for Android) Entertainment MP3, Bluetooth music playing Phone calls reminding Ring, Two-way anti lost remind, Two way search Pedometer, Step motion meter, Calories calculation, Sports mileage records, Sedentary remind, Sleep monitoring, Remote photos, Alarm clock, Calendar, Notification remind, Time synchronization Functions: Calling : Dial, hands-free calls, call history, phone book; BT Calling SMS : Local SMS, SMS Bluetooth synchronization push entertainment : MP3, MP4 local playback, Bluetooth music player Calls to remind : Ring tones and vibrate Clock Display : 3 sets the clock display, free to switch Two-way anti-lost: Bidirectional reminder, bi-looking Pedometer : Sports pedometer, exercise tachograph Sedentary reminder : Supports PSG : Supports Camera : Watch pictures: local memory storage. Remote camera:stored in the phone memory calendar : sync schedule BT Message : QQ, WeChat, facebook, instant information, mobile push notification Specifications : CPU : MTK6261D ROM+RAM : 2M+32M,support 32G TF Card Screen : 1.22" IPS Round Screen Bluetooth : BT3.0 Camera : 0.3M SIM Card : Micro Sim Network Frequency : GSM 850/900/1800/1900 Quad-band calling Battery : 280mAh Polymer Battery Language : English, French, Italy, Spain, Portugal, German, Turkey, Russian, Arabia, Persian, Czech, Hungarian, Hebrew, Dutch External Dimension : 53.0x44.8x12.95mm Surface Craft : Metal sandblasting, high bright side, the shape of metal cutting, high-gloss anodized aluminum sheet Band Material : TPU Band Weight : 120g Gift Box Size: 100x85x65mm Accelerometer 3D acceleration Packging list 1 x Smartwacth 1 x USB Cable 1 x User Manual