Feature: 1.SMS information call reminders. 2.Bluetooth synchronization. 3.Data synchronization does not require cable. 4.Remote camera take photos by phone through remote control of the wristband. 5.Activity tracker record your daily activity: steps distance time calories; check and share your data anytime. 6.Anti-lost the wristband will remind you with vibration when your phone is 5m away from you. 7.When the Bluetooth is disconnected or the phone is out of the Bluetooth distance the watch will alert you. 8.Sleep monitor check sleep trend chart to view your sleep time and quality. 9.Sedentary reminder set it to remind you to walk or exercise after a long time sit. 10.IPX7 Waterproof smart bracelet from water (Not for swimming or taking a shower). 11.Heart rate monitor and blood pressure monitor. 12.USB direct charge. Specification: Device model: ID 115PLUS heart rate bracelet Bluetooth: 4.0 Battery: 50mA Polymer Lithium-ion Charging Time: 1 hour Compatible system: for IOS7.1 and above for Android4.4 and above Synchronization Range: 3m(theoretical rang is 10m without any interference) Main functions: heart rate monitoring step counting calorie burning distance RTC display automatic sleep monitoring call reminder information push alarm reminder anti-lost remote control etc. Waterproof and dustproof: sweatproof rainproof splashproof Display screen size: 0.96 inches Screen type: OLED Connection parameters: Bluetooth Low-power Bluetooth 4.0 synchronization Product size: Main body: 43x18x12mm Strap: 245x20x12.8mm Product net weight: 28g Product color: black