Improve Apple Watch Battery Life Without Losing Features

Updated 7 November 2026 · Standard formula, shown below

This guide shows you how to extend your Apple Watch’s battery life through the day while keeping the features you actually use—notifications, workouts, and quick replies. You’ll adjust settings that drain power silently, without disabling core functionality. No special tools are needed, just your watch and its companion iPhone app.

What You’ll Need

Your Apple Watch (any model with watchOS 9 or later)
The paired iPhone with the Watch app installed
About 15 minutes to go through the settings

Step-by-Step

Check which apps use the most battery. On your iPhone, open the Watch app, tap General > Usage. Scroll to Battery Usage to see a breakdown. This tells you where to focus your changes.
Reduce background app refresh. In the Watch app on your iPhone, go to General > Background App Refresh. Turn it off for apps you don’t need to update constantly (like news or weather). Keep it on for messaging and calendar apps. This saves a lot of power without affecting notifications you get when you open the app.
Disable the always-on display (if you don’t need it). On your watch, go to Settings > Display & Brightness > Always On. Turn this off. You’ll still see the time when you raise your wrist or tap the screen. This is one of the biggest battery drains.
Lower screen brightness. In the same Display & Brightness menu, reduce the brightness slider. A dimmer screen uses noticeably less power, and you can still read everything in most lighting.
Turn off the wake on wrist raise if you don’t need it. If you find the screen turning on too often (e.g., during sleep or when typing), go to Settings > Display & Brightness > Wake on Wrist Raise and turn it off. You’ll need to tap the screen to see the time, but if you rarely raise your wrist to check, this saves a lot.
Disable unnecessary notifications. On your iPhone, go to the Watch app > Notifications. Turn off notifications for apps that aren’t critical. Each notification wakes the screen and uses the radio, so fewer pings means longer battery.
Use a simple watch face. Faces with many complications (like weather, heart rate, and activity rings) update frequently. Switch to a face with only the time and one or two complications. You can still check other data by opening the app.
Turn off the cellular connection when you don’t need it. If you have a cellular model, go to Settings > Cellular on the watch and turn it off when you’re near your iPhone. The watch uses Bluetooth and Wi‑Fi, which are more efficient. You can turn it back on when you go out without your phone.
Disable the “Hey Siri” voice trigger. On your watch, go to Settings > Siri and turn off “Listen for Hey Siri.” You can still press the Digital Crown to use Siri. The microphone is always listening when this is on, which drains the battery.
Turn off the heart rate sensor during workouts (if you don’t need continuous monitoring). During an outdoor workout, you can swipe to the heart rate screen and tap the heart icon to turn off continuous heart rate tracking. You’ll still get a reading every few minutes, but it uses less power.
Enable Power Saving Mode during workouts. On your watch, go to Settings > Workout > Power Saving Mode. This disables the always-on heart rate monitor and GPS during workouts, which can double battery life. You won’t get real-time heart rate, but you’ll still get the workout data at the end.
Turn off the “Raise to Speak” feature. In Settings > Siri, turn off “Raise to Speak.” This prevents the watch from activating Siri every time you raise your wrist, which can happen accidentally.
Disable the “Auto Launch” for audio apps. When you start a podcast or music on your iPhone, the watch automatically opens the Now Playing app. Go to Settings > General > Auto Launch on the watch and turn it off. You can still open it manually.
Update to the latest watchOS. Apple frequently improves battery efficiency in updates. On your iPhone, go to the Watch app > General > Software Update and install any available update.

Common Mistakes

Turning off everything at once. You lose features you might rely on. Instead, disable one thing at a time and see how it affects your battery over a day.
Forgetting that notifications still come through. Turning off Background App Refresh doesn’t stop notifications; it just stops the app from updating data in the background. Notifications still arrive, but they might be slightly delayed.
Leaving the display always on but expecting a huge gain. The always-on display is a major drain. If you turn it off, you’ll see the biggest improvement.
Not resetting after a major update. Sometimes battery life gets worse after an update. If you’ve tried everything and it’s still poor, try unpairing and re-pairing your watch (this resets all settings).

Tips

Use a dark watch face. On OLED models (Series 4 and later), black pixels are off, so a dark face saves a little power.
Turn off the “Wake on Crown Rotation” if you don’t use the Digital Crown to wake the screen. In Settings > General > Wake Screen, disable it.
Keep your watch cool. High temperatures can degrade battery life. Don’t leave it in direct sunlight for long periods.
Use Theater Mode when you don’t want the screen to light up. Swipe up to Control Center and tap the masks icon. This silences notifications and keeps the screen off until you tap it.
Charge strategically. If you’re going to be away from a charger for a long time, put the watch in Power Reserve mode (press and hold the side button, then slide to Power Reserve). This shows only the time and disables all other features, but it can last days.

Troubleshooting

If you’ve made these changes and the battery still drains quickly, try the following:

Restart your watch. Hold the side button, then slide to power off. Turn it back on after a minute.
Check for a stuck app. If an app is misbehaving, it can drain battery. Force-quit it by pressing the side button, then swiping the app up from the app switcher.
Unpair and re-pair. This is a more drastic step, but it often fixes software glitches. On your iPhone, open the Watch app, tap All Watches, tap the info icon, then Unpair Apple Watch. Then pair again as a new watch (or restore from backup).
Reset all settings. On your watch, go to Settings > General > Reset > Reset All Settings. This doesn’t erase your data, but it resets preferences like brightness and notifications.
Check if the battery health is degraded. On your watch, go to Settings > Battery > Battery Health. If it’s below 80%, the battery may need service. Contact Apple Support.

Frequently Asked Questions

Will turning off background refresh stop notifications?

No. Notifications are pushed to your watch independently. You’ll still get them, but some apps might not update their content until you open them.

How much battery can I save by turning off the always-on display?

On average, you can expect to gain 1-2 hours of battery life per day, depending on how often you glance at the screen.

Does using a dark watch face really help?

On OLED models, yes. Black pixels are turned off, so a dark face uses slightly less power. The difference is small, but it adds up over a day.

Is it safe to turn off the heart rate sensor during workouts?

Yes, it’s safe. You just won’t get continuous heart rate data during the workout. You’ll still get a reading every few minutes, and the workout metrics (calories, distance) are still accurate.

Why is my battery draining even after following these steps?

There could be a software bug, an app stuck in the background, or the battery may be aging. Try restarting, then unpairing and re-pairing. If it persists, check battery health.

Can I use Power Reserve mode and still receive notifications?

No. Power Reserve mode disables all features except showing the time. You won’t receive notifications, and you can’t use apps until you exit the mode.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.