As per the official release notes for the latest developer-only watchOS 4.1 beta that can be found on Apple’s Dev Center, the forthcoming software includes new capabilities like an all-new Radio app that supports cellular streaming on Series 3 models.
Here’s an excerpt from release notes accompanying the download:
With watchOS 4.1, you can stream music, giving you access to any song from Apple Music or your iCloud Music Library, straight from the wrist.
The new Radio app also gives you access to Beats 1 live or any Apple Music radio station while away from your phone or Wi-Fi.
And you can use Siri as your personal DJ. Just raise your wrist and ask Siri to play anything from Reggaeton hits to Top 40 tracks to French Garage Rock.
Here’s our hands-on video walkthrough of watchOS 4.1 with the new Radio app and Apple Music streaming.
For now, these new features seem like great additions to the watchOS software.