There is no user-facing downgrade for watchOS
Every other Apple device can be restored by its owner: an iPhone or iPad through recovery mode and a signed IPSW, a Mac through Recovery, an Apple TV through a computer. The Apple Watch has no equivalent. There is no restore mode you can enter, no firmware file Apple publishes for it, and no cable that connects it to anything.
Unpairing and re-pairing does not help either. Re-pairing restores your data onto the watch, but it does not change the version of watchOS installed on it — the beta stays exactly where it is.
What Apple Support can and cannot do
Apple Support can, at their discretion, restore a Watch to a shipping version at an Apple Store or authorised service provider using internal tooling. This is not a guaranteed service, it is not always offered, and it may be refused for a device that is out of warranty or that was deliberately put on a beta.
If you decide to ask, do it early. The odds are better while the previous version is still being signed, and they fall away entirely once the new version has shipped publicly — at which point there is nothing older to go back to.
The practical option is to wait
Turn off Beta Updates in the Watch app on your iPhone, under General → Software Update → Beta Updates. New betas will stop arriving, and when the finished version of watchOS ships publicly it will supersede the build you are on.
This is a matter of weeks or months depending on where in the cycle you are, not indefinite. A watch stuck on a late beta is usually only a few builds away from being on the same software as everyone else.
Why this matters more than it sounds
A watchOS beta with a battery regression is a watch that does not last the day, and unlike a phone you cannot simply put it on a charger for twenty minutes at your desk. A bug affecting workout tracking or notifications hits functions people genuinely depend on.
That combination — high dependence, zero reversibility — is why an Apple Watch is the single worst device in the ecosystem to put an early beta on, and why we would suggest the public channel or nothing at all.
If you are still deciding
Install the watchOS beta only once the corresponding iOS beta has been running on your iPhone for a while without trouble, and preferably from the public channel rather than the developer one. The two are tied together anyway: a watchOS beta requires the paired iPhone to be on the matching iOS beta.
Our guide to leaving the beta program covers turning betas off across every device, and the channel comparison covers which one to be on.
Frequently Asked Questions
Can I downgrade my Apple Watch from a beta?
Not yourself. There is no restore mode, no published firmware file and no cable. Only Apple Support can restore a Watch, at their discretion and not as a guaranteed service.
Does unpairing my Apple Watch remove the beta?
No. Unpairing and re-pairing restores your data but leaves the installed version of watchOS unchanged.
What happens if I turn off Beta Updates on my Watch?
New betas stop arriving. You stay on your current build until the finished public release supersedes it, which typically takes weeks rather than months.
Can I install a watchOS beta without the iOS beta?
No. A watchOS beta requires the paired iPhone to be running the matching iOS beta.