Apple just released WatchOS 4.1 for all users, and the spotlight feature is support for GymKit. It enables the Apple Watch to pair with supported gym equipment, so you can track more accurate fitness data.
WatchOS 4.1 has enabled GymKit support which lets Apple Watch pair with upcoming gym equipment for sharing workout data between devices (like heart rate from Apple Watch and incline from a treadmill) to give you the most accurate credit. Upcoming GymKit partners include LifeFitness, Cybex. Matrix, TechnoGym, Schwinn, Star Trac, and StairMaster; stay tuned for specific hardware and fitness clubs with support to be announced.
WatchOS 4.1 also brings access to the iCloud Music Library. The Apple Watch was previously limited to synced playlists from the iPhone over Wi-FI, but the latest update allows Apple Music subscribers access to their entire library. Watch Series 3 with LTE users have the added benefit of being able to stream music over cellular. To make it even easier to find your favorite music on the Apple Watch, the WatchOS 4.1 update now allows you to use Siri to search for songs, playlists and albums.
There’s also a new Wi-Fi toggle in Control Center for Apple Watch Series 3 with LTE. This lets you optionally choose to use cellular over Wi-Fi when you’re not connected to your iPhone. This is useful when Apple Watch tries to use a known Wi-Fi network that you don’t want to join. Simply toggle Wi-Fi off to switch to cellular when not paired to iPhone.