Waterproof IP67, heart rate function, blood pressure function. Activity Monitoring, Calorie Counter, Sleep Monitor, Alarm, Wireless, Pedometer. Take photo after shaking the bracelet. It can show you the sleep quality trend chart when you are sleeping. 100 mAh battery inside. 258 x 34.7 x 11.3 mm. 10.16" L x 1.37" W x 0.44" H
