BT Calling: Single BT (APP & calling one-time connection), Bluetooth version: 5.2, call-accept, reject, on call-mute, volume, shift, disconnect: Seamlessly manage calls with single BT connection and convenient call controls.  Built Quality: Premium Material with Skin Friendly Straps, Ultra Sports Edition, Two Working Buttons: Experience durability and comfort with premium materials, rugged design, and easy navigation buttons. Health Tracking: Heart Rate, Blood Pressure, SP02, Stress Monitor, Sleep Monitor, Breathe Training, Physiological Cycle Reminder: Keep track of your vital health metrics and receive reminders for relaxation and wellness. Extra Features: Sleep Monitor, Heart Rate Monitor, Exercise Records Keeper, Blood Pressure Checker, Blood Oxygen, AI Voice Assistant, Weather Updates, Phone Call{Recent Call, Dial Pad, Contacts}, Music Player, Camera, Relaxation Mode, Stopwatch, Alarm, Timer, Flashlight, Calculator, Cycle Tracking Feature, Find Phone, E-Cards: Enjoy a range of convenient functions, from health monitoring to communication and entertainment.