fitness tracker popular ip67 waterproof heart rate monitor m2 smart bracelet sleep monitor watches smart band m2 wristbands smart bracelets

description product name: m2 smart bracelet smart watch heart rate monitor bluetooth smartband health fitness smart band for android ios activity tracker dhl item code: 430237126 category: smart watches short description: available colors: black, blue, orange, deep purple,compatibility: support android phone, apple phone,with retail package. quantity: 1 piece package size: 12.0 * 12.0 * 5.0 ( cm ) gross weight/package: 0.05 ( kg )