The third developer beta of watchOS 10.2 is now available to download as Apple's test schedule rolls on.
Developers who are taking part in the beta program can pick up the latest builds via the Apple Developer Center or by updating devices already running on the beta software. Public beta versions are generally offered shortly after the developer releases, via the Apple Beta Software Program.
The third build of watchOS 10.2 is number 21S5349e, replacing the second, 21S5342e.
AppleInsider and Apple strongly suggest users don't install beta operating systems or other beta software on "mission-critical" or primary devices, as there is the small chance of issues that could result in the loss of data. Testers should instead use secondary or non-essential hardware and ensure they have sufficient backups of their critical data at all times.