WatchOS 7.5 battery drain

Anyone else having a horrible battery life on the latest watch update? I have the series 5 on watch OS 7.5. Since the update my watch won’t make it 16 hours.


Before the update, I would be able to go to bed with my watch at 100%, use it for sleep mode and wake up alarm. Exercise in the morning for 30 minutes and go on my day. At night I would still have 20-30% battery before charging it. 

Doing the same routine, 2 days in a row my watch doesn't make it past lunch. I do not use the always on display function either.


Last night I reset my watch and restored from backup. Charged to 100%, went to bed wearing it, woke up this morning to 70%.


Hope a new update comes fast or wearing the watch is pointless with this terrible battery drain.

Apple Watch

Posted on May 27, 2021 2:35 AM

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Posted on Jun 25, 2021 3:11 AM

I’ve had the same issue.


After a week trying different routes, I’ve found what has worked and that is turning off the environmental sound measurements functionality in Privacy at least until Apple fixes the bug.


It looks like the functionality is running constantly in the back taking too much power, since the battery drains at a constant pace.


Hope it helps others!

252 replies

Jun 26, 2021 2:52 AM in response to SteveW52

Before the update, with the current set up, I tried several time to almost not using it during the 9-10 working hours (from when I left to when I returned home), apart from reading a few incoming notifications and activate the display to just check the day time, and from 100% of the morning it passed to 75-80% at 17-18 pm in the afternoon. Now it’s 25-30%

Jul 5, 2021 9:35 AM in response to Breaktj

My Apple Watch SE, bought in December 2020, was having the same battery drain issues after the watchOS 7.5 update. I tried doing the hard reset and all that stuff without any success. I left it at home for a couple of weeks because it was essentially useless and was waiting for an update. I started using it again a week and a half ago for workouts and noticed it was keeping its charge longer, more like pre-watchOS 7.5, and it has been fine for a week and a half now. I am glad it is working, but I have no idea what changed from the fast battery drain to the now-normal battery life. I am guessing some app (Apple or 3rd party, who knows?) updated and fixed something. What worries me is this whole scenario can happen again and I still have no idea how to fix it.

Jul 21, 2021 6:04 AM in response to R00SEVELT

Sad to say the battery life’s has not improved with the update. I can generally just squeak through the day but thats if I dont stress the watch out like use the cellular or do a workout. If I do those, I need an afternoon charge.


Before 7.4, I got MUCH better battery life (like 40% after a full day good). When I asked Apple about it they said it was me.


Denial…..

Jul 28, 2021 10:38 PM in response to Abdiso

If unpairing worked, and it didn’t for me, IT’S NOT AN HARDWARE PROBLEM. That’s a recurring problem when they do updates. It’s not the first time it happens. Last time, Apple released an update that clearly state the battery issue among the fixes. Now with 7.6 the Watch is a little bit better, but still draining a lot.

Jul 31, 2021 2:02 AM in response to Abdiso

Apple watch 4 here connected to an iPhone 6s on IOS 14.6.

I have the constant battery drain issue also. My watch is draining about 8% per hour, I put it on at 6:40, and after 16:00 it is in red. I have to charge it dinner time to make it through the day.

Maybe later I try to update my iPhone’s IOS to 14.7.1 (which is targeted to resolve Apple Watch sync problems too) but as I do not suffer the dreaded battery drain issue on my iPhone, I don’t want to make both useless…


All in all shame on Apple to make such a “smart” watch that is not able to last a working day… It is simple inconvenience and is not acceptable at all.

Aug 14, 2021 3:17 PM in response to cakalaky

I have the same issue, S6 and the battery is barley making it eight hours, even with always on display turned off, since updating to 7.6.1. Before updating I was getting over 24 hours. I reached out to AppleCare, they ran a remote diagnostic and the watch and battery was fine. I tried an unpair and repair which has done nothing to help with the drain.

Aug 30, 2021 4:08 PM in response to ukifrommontgomery

Agreed with everybody that it’s the WatchOS upgrade. I posted about a month ago since I started having significantly reduced daily battery life post 7.6.

7.6.1 did nothing except get my hopes up.

For me the only indispensable feature of my Apple Watch is fall detection.

if no recourse to the battery issue arrives soon, there are alternatives out there.

As usual the silence from Apple is deafening.

Sep 10, 2021 3:04 PM in response to CountryMama

I’ve made comments on other postings. But the battery issue on my Apple Watch 5 continues to dramatically worsen.

Battery health remains at 88%.

My watch battery now goes to < 10% around 4:am. I have always used it overnight to monitor sleep. When I get up in the morning I used to recharge. No more.

I realize there will likely be a WatchOS update shortly.

But if that doesn’t fix my watch I’ll revisit my other trackers.

Sep 12, 2021 4:20 AM in response to ukifrommontgomery

I decided to put my Apple Watch down. I’m not willing to destroy the watch’s battery no longer.

Even my ancient Moto360 (which was sitting on the shelf until now) lasts 24 hours per a charge.

Besides other (smart) watches I used Fitbit flex and after now Flex 2 on the same wrist till 2014. (Fitbit ecosystem is really good, reliable and -with Flex2- fully automatic. There is no tennis specific exercise detection, but it detect it as aerobic workout.

Also use a Samsung Fit2, which is also very good, also there is automatic workout detection.

Both works 3-5 days, work with IPhone well.

AW is a joke now, starting from 6:50am fully charged, I have to charge it at noon to be able to last the day (at least to be able to reach home at 5pm. )

As Apple is unikely to have the will to correct this scandal, I encourage you to put down your Apple watches to prevent further damage until it is satisfactorily solved. (Remember, more charge is more degradation of the battery)

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WatchOS 7.5 battery drain

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