LEMONBEST New Water Resistant U9 Bluetooth Smart Watch Functional Wrist Watch Bracelet + Pedometer + Calorie Counter + Alarm Imported 3D Size:74*17.8*8.8mm; Compatible with: Samsung S4 S5, iPhone, Sony, HTC. High speed Internet access, Zero flow through to the end. Compatible with all Bluetooth V2.0 or above enabled smart phones, tablets and PCs. Strap made of non-toxic environmentally TPU materials with stainless steel around the screen dial, wear-resisting, corrosion resistance, harmless to skin.