Product description Brand : Topffy Model Number : V8 RAM Size : 512 MB With Camera : Yes SIM card support : Yes Operating System : Multi Compatible Operating Systems : Android & iOS Color : Black Band Material : Stainless Steel [Multifunction Smart Watch]: Dial via watch SIM card or Bluetooth, Pedometer, Sedentary remind, Sleep monitoring, Message reminder (from the text, phone, and other app notifications), Camera controllers, Music players, and more. Once you use a smart watch, it will make your life easier and more convenient. [Long-lasting Battery]: More capacity, longer endurance. Full charge requires only about half an hour and the standby time can be up to 5-7 days with full power. And we provide an extra replacement battery for you, never worry about the problem of having no electricity on the smartwatch. [Wide Compatibility & Stable Connection]: Smart Watch adopt Bluetooth v4.0 technology to connect your phone. Up to 33ft connection range guarantees low signal delay. And it is fully compatible with all Android phones and Apple IOS phones on the market. Like IPhone, Samsung, Nexus, Huawei, HTC, Sony, LG, Google Pixel, ZTE, OPPO, XIAOMI, Motorola and so on. [Comfortable and Durable]: Stainless steel surface, precision laminating process, Nano TPU85 material watch strap, anti-sweat matte finishing, ergonomic convex design and soft strap which make wearing more comfortable. Unique waterproof design, good for outdoor activity. And the Smart Wrist Watch also equipped with 1.54" TFT LCD 2.5D radian capacitive touchscreen, which has 240*240 pixels resolution make the screen clear and bright. Product details Batteries ‏ : ‎ 1 Lithium Metal batteries required. (included) Package Dimensions ‏ : ‎ 9.2 x 7.2 x 5.6 cm; 110 Grams Date First Available ‏ : ‎ 25 March 2019 Manufacturer ‏ : ‎ Topffy Item model number ‏ : ‎ V8.