Features: [Health Monitor] Automatically monitor and record your heart rate and blood pressure.Let you know your health condition at any time and anywhere. [Sleep Monitor] The watch will turn on automatically to record your sleep duration, then analyze your sleep quality.Help you adjust your rest time for a better sleep quality. [Multiple Workout Modes] Support 10 goal-based exercises,such as outdoor walking,indoor running,outdoor cycling,hiking and so on, meeting your different exercise needs. [Smart Reminder] When connected with you phone,it will provide synchronous display of message,call or social APP as well as alarm clock and sedentary reminder. [Female Cycle Tracker] Let you follow your cycle,log periods,record details and analyse trends at a glance with the H Band app,offering more considerate care for you. [User-Defined Watch Faces] There are different kinds of stylish and simple dials for you to choose. You can switch your various time dial styles freely. [30-Meter Waterproof] Can effectively prevent sweat or rain drops from splashing,meeting daily waterproof needs. [More Functions] Steps,Distance,Calories,Weather,Music control,Stopwatch,Countdown,Find phone,Turn wrist detection,Shake to take photo. Parameters: Screen Size:1.3 inches Resolution:240*240pix BT:V5.1 Compatibility:Android 4.4 and above or iOS 9.0 and above Battery Type:Lithium polymer battery Battery Capacity:180mAh Charging Time:about 1.5H Standby Time:30 days(Power-saving Scenario);18 days(Typical Usage Scenario) App:H Band