E12 Smart Call Sports Waterproof Monitoring Bracelet $ 29.16 Product Information: Body material:Zinc alloy + ABS/PC Strap material: Eco-friendly TPU/leather strap Product size (cm): Diameter 4.6 thick 1.17cm Color box size (cm): 15103CM Screen display: 1.28 IPS color screen Battery capacity: 240mAh Standby time: 20-25 days Physical buttons: Full touch plus dual buttons Motor: Built-in, vibration reminder Charging interface: Magnetic charging stand Screen display: 1.28 inch IPS color screen Battery capacity: 240mAh Bracelet memory: 128M bit flash, rom 512KB sram 138KB Packing list: Bracelet, color box, manual