WHOOP MG Smart Medical Bracelet 12-month LIFE package An advanced, lightweight fitness and health tracking bracelet. Features of this watch: Heart monitor and ECG Daily blood pressure indicators Recovery and exertion measurement Detailed sleep tracking Comprehensive biometric sensors monitoring heart rate, blood oxygen, body temperature, and respiratory rate. Battery lasts 14 days Wireless charger Water and dust resistant LIFE membership for 12 months The watch is new, opened but unfortunately not used as I didn't understand it. Watch Size: 38mm Material: Rubber Movement Type: Digital Features: Water Resistant, Alarm, Chronograph, Heart Rate Monitor, Sleep Monitor, Date