Key features of KaFit include:1. Health data display: KaFit records the number of steps, sleep time, heart rate, calories burned and other data related to your physical condition, and at the same time provides you with professional interpretation of these data (non-medical use, only for general fitness use) /health purpose );2. Sports data analysis: KaFit can also record while you are exercising, and will display various data, including detailed routes and various sports data analysis after exercise;3. Smart device management assistant: KaFit can be used to manage smart device (V40) settings, such as notification management, dial replacement, widget sorting, call notification settings, and SMS notification settings