Once the proper configuration profile has been installed from the Apple Developer Center, the new watchOS beta can be downloaded through the dedicated Apple Watch app on the iPhone by going to General --> Software update.
To install the update, the Apple Watch needs to have at least 50 percent battery, it must be placed on the charger, and it has to be in range of the iPhone.
The watchOS 5.2 update introduces a set of new Hermès watch faces, as discovered by French site WatchGeneration. The watch faces are available in pink and blue, and feature a gradient-style design that changes much like other Hermès watch faces. There are customizable numbers and an option for a single complication.
There were no other major changes discovered in watchOS with the release of the first three betas, but we'll update this post should we find new features or major tweaks worth noting in the fourth.