Material:Body:PC/ABS(case)+TPU(button) Strap:Lycra+Velcro. Weight: 12G(main unit)+13G(charging cable)+7G(strap). LED Lights/Magnetic Charging/Light.
XOSS BBP Heart Rate Armband Heart Rate Monitor Waterproof Bluetooth ANT+
Coospo Hw9 Armband Heart Rate Monitor with Hr Zones/calories Hrm Sensor Fitness
Blackbird HR5 Armband Heart Rate Monitor Arm Strap Sensor ANT+ Wireless Fitness
HW807 HRV Heart Rate Monitor Armband Optical Outdoor Fitness Sensor Bluetooth 5.
CooSpo H808S heart rate sensor ANT+Bluetooth chest strap heart rate monitoring
