The TOZO S1 Smart Watch is a high-quality device that offers a wide variety of features to its users. It has a 1.54-inch screen size with a matte black case color and band color made of silicone. This smartwatch is compatible with iOS and Android operating systems and boasts a range of features such as fitness tracking, touchscreen, sleep monitoring, waterproofing, calorie counting, pedometer, wireless charging, heart rate monitoring, and call message notifications. Moreover, the TOZO S1 Smart Watch has a case size of 40mm and is made of aluminum. It comes with a manufacturer warranty of one year and has a battery capacity of 300mAh. This smartwatch has an IPX8 waterproof rating and is a great accessory for anyone looking for a reliable and stylish smartwatch. 428 MM