IANRTTE Advanced Fitness...

● 【Heart Rate & Sleep Monitoring】Built-in the Nordic 51832 Chip, minimum size, lowest power consumption, highest integration. Tracks real-time heart rate automatically & continuously and automatically tracks your sleep duration & consistency with comprehensive analysis of sleep quality data, helping you adjust yourself for a healthier lifestyle.
● 【All-day Activity Tracking & 14 Sport Modes】 Accurately record all-day activities like steps, distance, calories burned, miles walked, active minutes, sleep status and more.Connect the GPS on your cellphone can show run stats like pace and distance and record a map of your workout route. Supports 14 sports modes: Walk, Run, Spinning, Cycling, Dance, Climbing, Hike, Treadmill, Workout, Tennis, Yoga, Basketball, Football, Badminton.
● 【Call & Message Smart Alerts】With a High-end Mobile Phone LCD Screen, the screen intensity is brighter! Receive call, calendar, SMS and SNS (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter) notifications on display; Vibrates to notify you of incoming calls and messages; reminds you to move after periods of inactivity and important dates, helping you stay connected, never miss the messages that matter.
● 【IP68 Waterproof & Compatible with IOS / Android】With IP68 waterproof, you can wear a sports watch while washing your hands, taking a bath and swimming (do not dive in the sea).The mobile system requires android 4.4 and in_version. Or ios 7.0 and above to install and use.(for use with smartphone only, not suitable for PC, iPad or tablet)
● 【Built-in USB Charging Port & Long Battery Life】No additional charger is required, just remove the straps and plug the end with the metal strip into the USB charging port to charge.Takes only 1-2 hours to fully charge and lasts up to 7-15 days standby.