Amazfit Bip U Smartwatch is designed to give consumers an attractive alternative to today's pricey smartwatches. Boasting a 225mAh battery to deliver up to 9 days of endurance on a single charge, this smartwatch is built to go the distance with you. It is a powerful exercise companion that can automatically recognize and record your exercises - steps, distance, and calories burned - or you can choose from more than 60 exercise modes to elevate your fitness level. With 5 ATM water-resistance, this fitness tracker can resist to any of your daily activities and can even be worn while swimming. Come with multiple health tracking functions include 24/7 heart rate monitoring, sleep quality & stress level monitoring and blood-oxygen level measurement, you can better understand your health. With a 1.43‘' large HD color screen, and 50 watch faces to choose from, the Amazfit Bip U smart watch matches seamlessly your personal style.