This is a multi-functional smart watch. Functions include calorie monitoring, , motion tracking (running, cycling, climbing, marathon), heart rate monitoring, sleep monitoring, message push / APP reminder (Facebook, Twitter, Skype, WhatsApp, etc.), alarm clock, remote camera, real-time weather, timer, music player, sedentary reminder, pedometer. Compatible with Android 4.4 / iOS 8.0 and above. It will surely bring much convenience to your life. Features: 1.3inch full touchscreen. Equipped with IPS color full touchscreen, crystal clear, it is easy to operate and read. Built-in , compass, atmospheric pressure sensor. A useful for your outdoor activities like cycling, climbing etc. Accurate monitoring of heart rate, blood pressure. Caring for your health. Support sim card(GSM version). Easily make phone calls. Water resistance. It has waterproof rating of IP67. No need to worry about splashing, rain or sweat. Continuously updated watch face. You can switch to the one best fits your mood or particular occasion. Specifications: Brand: LOKMAT Model: SMA-TK04 Color: Black Body material: Zinc alloy + PC + Fiberglass Strap material: Silica gel Chip: MTK2503A-ARM7 Screen Size: 1.3 Inch Resolution: 240*240 Battery Capacity: 320 mAh Charging method: Magnetic charging clip USB charging Waterproof rating: IP67 BT Version: BT 4.0 + 3.0 RAM: 128MB + 64MB Compatibility: Android 4.4 / iOS 8.0 and above Language: Chinese, English, French, Spanish, Polish, Portuguese, Italian, Dutch, Turkish, Russian, German Total Length: 270mm / 10.62in Item Weight: 139g / 4.9oz Package Weight: 202g / 7.12oz Package Size: 10.5 * 10.5 * 7.8cm / 4.13 * 4.13 * 3.07in Package List: 1 * Watch 1 * Charging cable 1 * Screwdriver (GSM edition) 1 * Tweezer（GSM edition） 1 * User Manual (Chinese, English)