Due to the definition of the dual-end mutual writing synchronization protocol of the Mi Fitness APP, and your different habits, there is a minimum data difference interval of 5 minutes and a maximum data difference interval of 30 minutes after automatic or manual synchronization. For example, if there is a minimum data difference of 5 minutes after synchronization, the next time you synchronize again, the calories and steps generated within these 5 minutes will be reflected. This setting is currently being interpreted and continuously optimized by the engineers of the Mi Fitness APP.