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watchOS 9 may get low power mode & new atrial fibrillation features

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Apple Watch could gain an always-available low power mode in the forthcoming watchOS 9, which is also expected to expand on its existing health features.

Apple is expected to unveil watchOS 9 at WWDC in June, and a new report claims that it will include health and battery power features, plus a refresh of the Watch's faces.

According to Bloomberg, watchOS 9 will introduce a new low-power mode. Currently, Apple Watch can go into a Power Reserve mode if a user chooses, and will automatically go into it when the battery declines to 10%.

Power Reserve switches off all Apple Watch features except the time. However, Bloomberg claims that under watchOS 9, Low Power Mode will allow the Watch to continue running certain apps.

It's likely that the new mode will resemble the Low Power feature on iPhone, where amongst many other things, it reduces the screen brightness.

Reportedly, watchOS 9 may also extend the current health feature regarding atrial fibrillation. Although not certain for this release, when it does come, it will be used to monitor how often a person is in a state of atrial fibrillation over specific periods.

There won't be the long-awaited blood pressure monitoring feature. However, the new report also claims that Apple will add more workout types to the Apple Watch, as well as additional running metrics.

Apple's forthcoming watchOS 9 is also expected to see many of the current Watch faces refreshed in some way.

Even if Apple does announce watchOS 9 at WWDC as it almost certainly will, there are inevitably features that will not be revealed until the launch of the "Apple Watch Series 8." Apple is expected to launch three new models in 2022, as well as retire the Apple Watch Series 3.



3 Comments

mike1 10 Years · 3437 comments


According to Bloomberg, watchOS 9 will introduce a new low power mode. Currently, Apple Watch can go into a Power Reserve mode if a user chooses, and will automatically go into it when the battery declines to 10%.


At 10%, I get an alert asking if I want to switch Power Reserve. It does not switch automatically.

robin huber 22 Years · 4026 comments

I hope the update fixes a power drain that appeared immediately after the last update. Watch is latest model. Never had to recharge my watch, always lasted from getting up til going to bed. Now routinely craps out mid afternoon—earlier if I use the timer function. 

beowulfschmidt 12 Years · 2361 comments

mike1 said:

According to Bloomberg, watchOS 9 will introduce a new low power mode. Currently, Apple Watch can go into a Power Reserve mode if a user chooses, and will automatically go into it when the battery declines to 10%.


At 10%, I get an alert asking if I want to switch Power Reserve. It does not switch automatically.

It sounds like Bloomberg believes that iOS 9 will introduce the automatic switch.