Today during wwdc17 the settings that the watch0s4 update . The music app that is incorporated into the Were announced. it presents some changes since. It now shows playlists and music based. On the listening history of your . Adding improved support. It will also allow you to associate playlists with workouts. And these play automatically when you start exercising. The activity app is one of the most used apple. Watch applications this time it required. A lot of attention from the developers so if you use the device. To do some kind of exercise. Now the apple smartwatch will be a ally for Biggest change to  is that it will soon work .With developers that make up 80 percent .Of the market. Allowing you to reconcile your training data between. Your watch and the machine you’re working on. Another thing that the new apple watch.