Product information: Model: M4 smart bracelet Applicable people: children, business, general public, fashion, adults, the elderly Screen size: 1 inch Appearance size: beautiful Material: TPU Battery capacity: 60 mA Product weight; 50g Body memory: 512 Color classification: black Function: Step counting Applicable platforms: Android platform, Apple iOS platform, fully compatible Compatible platform; IOS, ANDROID Material: ABS Battery capacity: 50MAH Operation mode: touch type Interface: USB 2.0 Wireless distance: 5m and below Packing list: Smart bracelet*1