Apple Watch Battery Life: 18 Hours Mixed Usage, Up to 72 Hours on Power Reserve - MacRumors
Skip to Content

Apple Watch Battery Life: 18 Hours Mixed Usage, Up to 72 Hours on Power Reserve

Apple Watch MagSafe Inductive ChargerApple has outlined specific information about Apple Watch battery life on its website, claiming that the wrist-worn device gets all-day battery life of 18 hours on a single charge based on mixed usage, and up to 72 hours in Power Reserve mode. The battery testing was conducted in March using a preproduction Apple Watch paired with an iPhone running preproduction software.

Apple claims that the Apple Watch has battery life of up to 3 hours for talk time, 6.5 hours for audio playback over Bluetooth, up to 7 hours during a workout session with the heart rate sensor on and up to 48 hours for timekeeping. Apple Watch charging times are listed as about 1.5 hours from 0% to 80% and 2.5 hours from 0% to 100% using the included MagSafe inductive charger.

Apple's claim of all-day battery life is based on using the Apple Watch for 90 time checks, 90 notifications, 45 minutes of app use, and a 30-minute workout with music playback via Bluetooth over the course of 18 hours. Apple used a 38mm Apple Watch for testing and claims that the 42mm will generally experience longer battery life. Additional magnetic chargers are available on Apple's bands and accessories page, costing $29 for a 1-meter cable and $39 for a 2-meter cable.

Related Roundup: Apple Watch 12
Buyer's Guide: Apple Watch (Buy Now)
Related Forum: Apple Watch

Popular Stories

apple watch s12 ultra 4

Apple Watch Series 12, Ultra 4 Owners Report Skin Irritation

Wednesday October 7, 2026 12:02 pm PDT by
Some Apple Watch Series 12 and Ultra 4 owners have experienced unexpected skin irritation with the new models, according to reports on the MacRumors forums and Reddit. Affected users complain of a burning sensation and redness under the sensor area. The Apple Watch Series 12 and Ultra 4 measure heart rate every five seconds, and some people have wondered if that's the cause of the skin...
apple watch series 3 design

Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch

Sunday November 1, 2026 3:34 am PST by
Apple has published a support document describing what to do if your Apple Watch continues to show time that's off by one hour after daylight savings time changes. "This incorrect time appears only on the Always On display when your wrist is down," says Apple. "When you activate the display by tapping it or raising your wrist, the time changes to the correct hour." To fix the issue, Apple says ...
southern straps 3 1

MacRumors Giveaway: Win an Apple Watch Series 12 and a Nylon Band From Southern Straps

Friday October 9, 2026 10:20 am PDT by
For this week's giveaway, we've teamed up with Southern Straps to offer MacRumors readers a chance to win an Apple Watch Series 12 and a nylon band from Southern Straps to go along with it. Southern Straps is a California-based company that has been making high-quality bands for the Apple Watch since the device first launched in 2015, and the company's selection of bands offer a an...

Top Rated Comments

Aluminum213 Avatar
152 months ago
See you generation 2 or 3


Good luck beta testers!
Score: 22 Votes (Like | Disagree)
MentalFloss Avatar
152 months ago
Still don't see the point of it.

I read the same thing when the iPhone and iPad were released, and in every thread where this was posted, I was stupid enough to write long posts about how I will greatly benefit from these devices. The people who posted the "Don't see the point" messages never read my replies and ended up posting it again and again.

Not falling for that this time around. Not going to explain stuff to people with limited imagination.

I see the point. Period.
Score: 14 Votes (Like | Disagree)
fitshaced Avatar
152 months ago
They're obviously hiding the battery in the link bracelet.

I think the Apple watch price is going to be a long running joke.
Score: 11 Votes (Like | Disagree)
152 months ago
huh?

I'm confused... How does "talk time" relate to the Apple Watch? I thought the device just alerts you to incoming calls. Why is the watch's battery life so affected when you're talking on your phone?

Go watch the announcement.
Score: 8 Votes (Like | Disagree)
ipedro Avatar
152 months ago
18 hours sounds reasonable. They will keep on working on battery life, so I will wait for at least 2nd or even maybe 3rd gen before buying one.

So you're getting an Apple Watch in 3 years? Have fun waiting :cool:

18 hours is more than reasonable. How many hours a day are you awake? If you sleep just 6 hours, the other 18 hours of the day, you can have the Watch on.

Take it off at night, put it on in the morning. 18 hours is a very comfortable margin for regular use without having to ever worry about the battery.
Score: 8 Votes (Like | Disagree)
152 months ago
Still don't see the point of it.
Score: 8 Votes (Like | Disagree)
Latest Stories
Early Black Friday Brings Steep Price Drops on Apple's Latest iPhone Cases
Early Black Friday Brings Steep Price Drops on Apple's Latest iPhone Cases
3 hours ago
John Ternus Hosting His First Earnings Call as Apple CEO Today
John Ternus Hosting His First Earnings Call as Apple CEO Today
4 hours ago
Here's What Spotify Looks Like on Apple's HomeView
Here's What Spotify Looks Like on Apple's HomeView
5 hours ago
iOS 27.2.1 Coming Soon, iOS 27.3 Beta Likely Available Tomorrow
iOS 27.2.1 Coming Soon, iOS 27.3 Beta Likely Available Tomorrow
5 hours ago
Mark Gurman: Apple Initially Aimed to Release iPhone Duo in November
Mark Gurman: Apple Initially Aimed to Release iPhone Duo in November
6 hours ago
Best Early Black Friday Deals on Apple Products Available Now
Best Early Black Friday Deals on Apple Products Available Now
6 hours ago
Apple Isn't Done With 2026: Here's What's Still Coming
Apple Isn't Done With 2026: Here's What's Still Coming
6 hours ago
Apple 'HomeView Ultra' With 9-Inch 360º Screen Detailed in New Report
Apple 'HomeView Ultra' With 9-Inch 360º Screen Detailed in New Report
6 hours ago
Apple TV 4K Pre-Order Discount Returns at Amazon
Apple TV 4K Pre-Order Discount Returns at Amazon
7 hours ago
Zoom and These Microsoft Apps Now Optimized for iPhone Duo
Zoom and These Microsoft Apps Now Optimized for iPhone Duo
7 hours ago
Canva Brings Free All-in-One Affinity App to iPad
Canva Brings Free All-in-One Affinity App to iPad
8 hours ago
iPhone Duo: Latest Buyer Wait Times
iPhone Duo: Latest Buyer Wait Times
9 hours ago
iPhone Duo Owners Can't Change Display Zoom After Setup
iPhone Duo Owners Can't Change Display Zoom After Setup
5 hours ago
Apple HomeView Could Double as a Security Camera
Apple HomeView Could Double as a Security Camera
12 hours ago
Apple Launching Five New Products This Friday
Apple Launching Five New Products This Friday
12 hours ago
Nearly Every M5 MacBook Air Now $200 Off on Amazon
Nearly Every M5 MacBook Air Now $200 Off on Amazon
1 day ago
Apple's HomeView Ships With Six-Month-Old Software
Apple's HomeView Ships With Six-Month-Old Software
1 day ago
Three New iPads Rumored to Launch in First Half of 2027
Three New iPads Rumored to Launch in First Half of 2027
1 day ago
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
1 day ago
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
2 days ago
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
2 days ago
Here's a New Tour of Apple's HomeView Software
Here's a New Tour of Apple's HomeView Software
2 days ago
Apple Reveals New iPad Mini's Battery Capacity
Apple Reveals New iPad Mini's Battery Capacity
2 days ago
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
2 days ago
'Pluribus' Season 2 Reportedly Starts Production Today
'Pluribus' Season 2 Reportedly Starts Production Today
3 days ago
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
3 days ago
HomeView Software 27.2: Wallpapers, Control Center, and More
HomeView Software 27.2: Wallpapers, Control Center, and More
3 days ago
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
3 days ago
iOS 27.3 Will Enable These Apple Intelligence Features in China
iOS 27.3 Will Enable These Apple Intelligence Features in China
3 days ago
Apple Says iOS 27.3 Beta Coming Next Week
Apple Says iOS 27.3 Beta Coming Next Week
3 days ago