NO.1 S3 Smart Phone Watch - MTK2502, SIM Card Support, 1.22 Inch Screen, SD Card Support, Android + iOS App (Black) The NO.1 S3 features a 1.22 inch circular screen with a nanometer tempered glass screen for a tougher finish that brings extra protection to the wrist phone. The stainless steel case has a sleek finish and will keep looking great as its corrosion resistance. Held in place on your wrist with a tough lever wrist band it will certainly look the part and will become the envy of your friends. With Bluetooth 4.0 you can sync the watch to your smart phone and enjoy notifications and updates throughout the day without having to reach into your pocket. With its range of lifestyle features the smart watch can assist in improving your daily life with a pedometer, sedentary reminder as well as a hear rate monitor. This trio of functions will can lead you to a healthier life by ensuring you get enough exercise and track your progress when you work out. The inclusion of a remote camera function means you can even use the watch to snap picture from you phone so getting the perfect selfie is a piece of cake. With a GSM SIM card slot that supports 850/900/1800/1900 bandwidths you can leave your phone at home and still keep in contact with all those who matter to you. With a 350mAh battery you can enjoy 24hours of usage or up to 5 days of standby time. The watch also has a micro SD card slot to as you can store up to 16GB of extra data.