10 days battery life & quick charge technology: featuring the dual chipset architecture and power-saving algorithms, last for 10 days. and with the quick charge technology, the watch can support you a whole day with only 5-minute charge. provides precise and real-time workout metrics for 11 professional sport modes including running, swimming and cycling.whether you’re into yoga or high-intensity interval training, the watch also keeps track of your real-time heart rate, calories and duration of the workout.real-time metrics & professional guidance: with a built-in gps sensor, 5atm, ai heart rate algorithm and innovative sensors, huawei watch fit is made for all the ways you exercise. this watch helps you train better by providing real-time metrics, scientific training effect evaluations and professional guidance.