You can enter "Settings >; Watch. Date and time "or" Settings >; System > date and time ",turn off the automatic determination of date, time and time zone, and you can manually set the time and time zone and 12-24 hour system, that is, the watch time can be independent of the mobile phone. Add one-click screen projection function for fitness courses (only some models are supported). Health challenge function is added to healthy life, which optimizes the playing experience of background music during voice broadcasting and can pause or reduce the music volume.