Large stylish dial display: 1.3-Inch tft-lcd colour touch screen features 4 different customizable displays, making it easier and quicker to view the time, day of the week date, steps travelled, and calories burned, your message notifications can also be displayed straight to your device screen Heart rate monitoring & sleep tracking: automatically monitor your daily real-time heart rate, and track your sleep quality status to get a better understanding of your health All-day fitness tracking: accurately records your activity data such as: steps taken, distance travelled, calories burned, minutes active and your weekly/monthly accumulate data, you can also see your fitness targets at a glance allowing you to easily control your rhythm of Exercise, helping you to adjust and make your exercise as effective as possible More smart functions: music control, incoming call notifications with the option to long press to hang up, up to 10 alarm Clocks, timer functionality, breathing guides, SEDENTARY alerts, wrist sensor, target settings, all this plus the option to sync your data with Starve Great battery life: built with a 210mAh battery that only takes 2.5 hours to charge and can be used for up to 10 days with a standby time of 30-45 days. You can adjust the screen brightness according to your needs