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My iPhone X was on iOS 13 beta and my watch was on Watch OS (latest version, not beta, 5.3 I believe). I would wake up in the morning and be at 50% and dead early in the day. Definitely not normal. Upgraded to Watch OS beta and things are back to normal. Overnight charge didn’t lose much. Normal behavior.
 
I’m on the latest public beta on my phone and 5.3.1 on the watch. Battery drain is pretty bad, watch wasn’t lasting a day. Today I ran a test and turned off the Bluetooth on my phone so the watch is basically standalone with cellular. Watch is at 60% now and took it off the charger at 6:45 this morning. I didn’t miss any notifications. So guess this will work till the next beta. Hopefully they fix whatever is not working right
 
Has anyone tried unpairing and re-pairing (with the backup)? I’m going to try that now. Nothing to lose if I re-pair with the backup.
Saw an article on idrop news saying this is a known issue affecting many but not all Apple watches paired to iPhones running iOS 13 betas. Mostly affects series 4 repairing may or may not fix problem according to article. Downgrading to 12.4 or waiting till public release of WatchOS 6 seems to be only options to fix problem which is related to increased communication between iPhone on iOS 13 betas and Apple Watch
 
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The battery drain is ridiculous. I'm on the latest iOS PB and the latest (non-beta) WatchOS. I went to sleep with 67%, woke up with 16% (just a few hours later), and I got to work with a dead watch about an hour ago.

Is anyone on beta for both iOS and WatchOS? If so, how is it?
[doublepost=1565098153][/doublepost]
I bit the bullet and went to the watchOS beta.

Keep us updated!
 
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The battery drain is ridiculous. I'm on the latest iOS PB and the latest (non-beta) Watch OS. I went to sleep with 67%, woke up with 16% (just a few hours later), and I got to work with a dead watch about an hour ago.

Is anyone on beta for both iOS and Watch OS? If so, how is it?
[doublepost=1565098153][/doublepost]

Keep us updated!

I did it this morning whilst drinking cwaffee and clearing emails. It had dropped 20% in an hour from charger with no activity and constant active usage.

In the following 6 hours since WatchOS beta it has dropped 10% with fairly intense fiddling. YMMV.

From what I can gather, it is the increase in communication from iOS PB and the ‘Watch’ app and the (although not exclusively) Series 4. Which, if you notice, the watch app in iOS PB has all the new features of the watchOS beta, but doesn’t function until GM of watchOS 6. From other open sources downgrade to IOS 12 or upgrade to watchOS beta are your only options.

Hope this helps.
 
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Saw an article on idrop news saying this is a known issue affecting many but not all Apple watches paired to iPhones running iOS 13 betas. Mostly affects series 4 repairing may or may not fix problem according to article. Downgrading to 12.4 or waiting till public release of WatchOS 6 seems to be only options to fix problem which is related to increased communication between iPhone on iOS 13 betas and Apple Watch

The re-pairing didn’t help. I’ll just deal with it until September.
 
Wow..this is interesting!! I’m in iOS 13 dev beta 4 & watchOS 5.3 with no battery issues. Took my watch off the charger around 6:30am, now it’s 8pm & I have 60% left. This is a series 4 GPS & Cellular.

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I am having this same problem.. didn’t intend to but at this point, I am going to give the Watch Beta software a shot to see if this does remedy the issue since my watch wasn’t lasting the entire day any longer,
 
I am having this same problem.. didn’t intend to but at this point, I am going to give the Watch Beta software a shot to see if this does remedy the issue since my watch wasn’t lasting the entire day any longer,

Just remember if you do that, you are stuck with the beta watch OS unless you send it in to Apple to downgrade it..
 
The battery drain is ridiculous. I'm on the latest iOS PB and the latest (non-beta) WatchOS. I went to sleep with 67%, woke up with 16% (just a few hours later), and I got to work with a dead watch about an hour ago.

Is anyone on beta for both iOS and WatchOS? If so, how is it?
[doublepost=1565098153][/doublepost]

Keep us updated!
How is it? Great! I was experiencing really bad drain like you mentioned, but since I upgraded my phone and watch
to the latest betas (iOS 13 Beta 5, WatchOS 6 Beta 4) battery performance is back to normal.
 
I’m going to have to look into the dev beta or figure something out because on iOS 13PB all the sudden my series 4 battery drain is insane. Took watch off the charger at 6:30am and now at almost 12:30pm I’m down to 10%.

strange thing is it has been fine on all the other PBs until about a week ago.
 
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I removed the beta profile. The most recent public beta for 13.0 seems stable enough, I am not risking it for 13.1.
 
I’m going to have to look into the dev beta or figure something out because on iOS 13PB all the sudden my series 4 battery drain is insane. Took watch off the charger at 6:30am and now at almost 12:30pm I’m down to 10%.

strange thing is it has been fine on all the other PBs until about a week ago.

Same issue. Turning off wifi on the watch slows down the drain, but it still drains fast. Turning on airplane mode stops the drain (and communication) altogether.
 
Woke up this morning after sleeping with a fully charged watch on - normally would use maximum 5% overnight. Woke up to only 40% left. iOS Beta 13.1 has brought back the drain. Not happy.
 
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