Cubot S1 Sports SmartBand - Black . Key Features . Dynamic heart rateMulti-mode (walking running riding)Intelligent sleep monitoringSmart reminder (clock calls drink)Music controlIP67 ratedBluetooth 4.085mAh Long life lithium polymer batteryCompatible with both Android and iOSCharging Cable Included . 24 hours of care - Dynamic heart rate monitoring Continuously monitor your heart rate and check the graph chart in the app. You can set a heart rate range and if your current heart rate exceeds your set range the band will vibrate and give you a warning. You cab turn off dynamic heart rate monioring in the settings to save power Automatically identifies your activity The Cubot S1 is equipped with a six-axis algorithm sensor this sensor can automatically identify whether you are walking running riding or climbing. It can then display the relevant data for these activities such as running miles dynamic heart rate and calories burned Call and message alerts When your phone recieves a call or message the Cubot S1 will vibrate meaning you never miss an important call or text.   Long standbyThe built-in 85mAh high-density lithium-polymer battery has a standby of up to 30 days when dynamic heart rate monitoring is turned off. If the battery starts to get low it can be fully charged in as little as 30 minutes Better design better performance Aluminium alloy is used for the main body with a 0.96-inch OLED screen. The wrist strap is waterproof and the porous design helps your skin to breath..