“MIFUN TECH” is an authorized seller of LETSCOM products. Please make sure that the product you are purchasing is sold by “MIFUN TECH”. Products from sellers other than “MIFUN TECH” may not be the same quality. We are unable to guarantee the quality of products purchased from other sellers, and will not be able to provide customer service for such purchases.
Heart Rate & Sleep Monitoring: 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: Accurately record all-day activities like steps, distance, calories burned, active minutes and sleep status