Watch this: Apple Watch Series 7: Here is what's new
WatchOS 8 will also be more compatible with e-bikes, and it comes with an improved algorithm for tracking calories. The algorithm, Apple says, will more accurately track a workout by determining whether someone is using a pedal-assist feature on a bike or only using their leg power.
The emphasis on catching spills by cyclists adds to the existing fall-detection feature of Apple Watch that's been around for a while. If the Apple Watch doesn't detect movement for about a minute, the watch will send an alert and call emergency services if you don't respond. This feature will be available on September 20, as part of Watch OS 8.
The updates to the device's health features come the same day Apple announced the Apple Watch Series 7, which has a larger, brighter always-on Retina display. It's also more durable than previous models and has a waterproof rating of WR50, which means it should be OK to wear in the shower or while swimming.