watchOS 7: The 5 biggest features coming to the Apple Watch

5. Fitness

What it is: watchOS' renamed Activity app, the new Fitness app, features a redesigned interface to make data easier to access. Users will also be able to track their dance moves, measuring how many calories they burned.

Why it's cool: Fitness is one of the Apple Watch's most integral features, and this should make it faster than ever to get to the most important data.