Notes: For iOS system it cannot download the APP. This watch is Bluetooth 3.0. All functions support android 4.3 and up smart phones.But for iphone, it just support answer & call, phone book ,music play, camera, clock, pedometer; Specification: CPU: MTK6531 Network & Connectivity: SIM Card: Single SIM Card (Micro SIM Card) Can be as a phone Frequency: GSM 850/900/1800/1900 MHz Bluetooth: Bluetooth 3.0 battery: battery 380mAh Storage: RAM 32M, ROM 32M; External memory: Support TF card up to 32GB Display: 1.54 inch IPS LCD, 240 x 240 pixels Talking Time: 3 Hours Standby Time: 180 Hours Camera: 0.3 MP Video Recording: not Support Media: Music: Support Hand-writing: Support Picture Format: JPEG, GIF, BMP, PNG Music Format: MP3, WAV (Does not support a wired headset) Languages: English, French, Spanish, Polish, Portuguese, Ltalian, German, Turkish, Russian,(If you need these languages please give me a message: Arabic, Persian,Czech, Dutch,Hungarian,Hebrew) Functions: Bluetooth Dialer, Contacts, Call Reminder, Clock, Anti-loss, Sedentary Reminder, Calendar,Facebook,Twitter,Browser Package : 1 X Smart Watch (No Card) 1 X English Manual 1 X USB Cable