Photo Gallery Unboxing NO 1 S3 the round smartwatch with a SIM card slot Hands On NO.1 S3 smartwatch The watch features an Anti-sweat matte surface treatment, ergonomic convex design, Metal plating frame, luxury and elegant design. The smartwatch phone is strong and durable and wearing is more comfortable. It comes in three different colours, which includes; black, brown and white. Each comes with an elegant leather band as well. The smart watch features a nanometer tempered glass screen. This help ensure that the screen doesn�t get scratched. The case is made out of corrosion-resistant stainless steel. Inside the watch, there�s a slot for a micro SIM card so that you can make phone calls, as well as a microSD card slot for memory. No. 1 S3 smart watch comes with all the standard monitoring functions such as fitness tracking, sleep monitoring, notifications feed through smartphone tethering through the Fundo app, Android compatibility , music player, anti-loss feature, Bluetooth and of...