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To make an Apple Watch last longer, start with Low Power Mode, Background App Refresh, and the display settings you use least. These options can extend runtime by limiting features, but Apple does not publish a guaranteed number of extra hours for each setting. Choose changes according to what you can do without: some affect health measurements, notifications, app updates, or workout details.
Choose settings by what you are willing to trade
There is no single best battery-saving configuration for every Apple Watch. Low Power Mode makes broader changes; Background App Refresh and display controls let you target particular conveniences. For longer outdoor workouts, a separate option can reduce GPS and heart-rate readings on eligible models.
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| Setting | What changes | Useful when |
|---|---|---|
| Low Power Mode | Limits or turns off selected features; some notifications may be delayed and connectivity limited. | You need more runtime and can accept a less connected watch. |
| Background App Refresh | Stops or reduces background updates for all or selected apps; active-face complications may still refresh. | You want to limit app updates without changing display or workout settings. |
| Display controls | Reduces screen wake behavior or turns off Always On on supported models. | You can accept waking the display deliberately or seeing it less often. |
| Fewer GPS and Heart Rate Readings | Reduces readings during supported outdoor workouts; alerts, splits, segments, and current pace are unavailable. | You prioritize runtime during a long outdoor walk, run, or hike over those workout details. |
Apple’s guidance describes what these settings change, but does not rank them by battery hours saved. Avoid assuming a particular percentage improvement.
Use Low Power Mode when its limitations fit
On Apple Watch, press the side button to open Control Center, tap the battery percentage, then turn on Low Power Mode. You can also open Settings on the watch and enable it there. Apple’s general battery guide says Low Power Mode is offered at 10% battery or lower; its support instructions also describe turning it on from the controls.
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The mode disables Always On and background heart-rate and blood-oxygen measurements, as well as heart-rate notifications. Some notifications may arrive late, emergency alerts may not arrive, and some Wi-Fi or cellular connections are limited. Apple also says you can schedule Low Power Mode for one, two, or three days. Those changes make it useful when runtime matters more than having every feature available, but not necessarily as an everyday default.
Low Power Mode can preserve heart-rate and pace measurement when you use the Workout app. You can also configure it to turn on automatically when a workout begins: on the watch, open Settings > Workout and turn on Low Power Mode. The workout-specific option to reduce GPS and heart-rate readings is separate and described below.
Limit Background App Refresh
Background App Refresh lets apps update when you are not actively using them, and Apple notes that refreshing apps in the background can use power. To change it on the watch, open Settings > General > Background App Refresh. Turn the feature off altogether or leave it on and disable refresh for selected apps.
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There is an important exception: apps with complications on the watch face currently in use may still refresh even when their Background App Refresh setting is off. If you still see updates from a complication, that does not necessarily mean the control failed; the active face can affect its behavior.
Reduce display wake-ups and Always On use
Open Settings > Display & Brightness to adjust brightness, Wake on Wrist Raise, Wake on Crown Rotation, and Wake Duration. Lowering brightness or disabling a wake behavior can make the screen less available at a glance, so change only the controls whose convenience you do not value.
On models with Always On, that feature has its own control in Display & Brightness. Apple says turning Always On off can increase battery life. The display still wakes when you raise your wrist or turn the Digital Crown if those wake controls are enabled, but it will not remain visible in the same way between interactions.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Use fewer workout readings for eligible outdoor sessions
For an outdoor walking, running, or hiking workout, Apple offers Fewer GPS and Heart Rate Readings while Low Power Mode is active. Apple lists availability with watchOS 9.1 or later on Apple Watch SE (2nd generation), Series 8 and later, and Ultra and later. The setting is intended for specific outdoor workouts, not every model or activity.
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If the battery still drains unusually quickly
Battery life depends on battery capacity and on how software and hardware features are used. A sudden or persistent change is not enough on its own to diagnose a failed battery: Apple notes that update-related background activity can affect battery use, and audio playback through built-in speakers on newer watches is another factor to consider.
Check battery condition on the watch under Settings > Battery > Battery Health. If it says Battery Needs Service, or you believe the battery needs replacement, Apple directs owners to Apple Support. Apple’s guidance does not provide a universal diagnosis or service price, so the watch’s battery-health message and support assessment are more useful than guessing from one day’s runtime.
Quick Recap
Apple Support references
- Extend the battery life on Apple Watch
- Use Low Power Mode on your Apple Watch
- Adjust the display settings on Apple Watch
- Use the Always On feature with your Apple Watch
- If the battery in your Apple Watch drains too quickly
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