watchOS 4 features a proactive Siri watch face that displays the information users need most throughout the day, personalized Activity coaching and an entirely new music experience. Learn more here.
watchOS 4 beta 4 fixes an issue that caused updating to watchOS 4 beta 3 to stall indefinitely after the watch restarts and the password has been entered.
If you've experience the stall trying to upgrade to beta 4, restart the Apple Watch up to three times. If this does not resolve the issue, unpair the Apple Watch from the iPhone while the watch is in the stalled state. Once the watch is unpaired, pair the watch and phone again.
Also, updating from watchOS 3.2.2 or earlier no longer results in a failure followed by the error message: “An error occurred downloading the latest version of watchOS on your Apple Watch”.
Developers can download the watchOS configuration profile from the link below. Please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.