Turn off features you don't use every day

The fastest way to extend your Apple Watch battery is to disable the features that drain it most. Always-On display, background app refresh, and Bluetooth are the three biggest power consumers. You don't need to turn them all off permanently—just switch off the ones you genuinely don't use.

Open the Settings app on your watch, scroll to Display, and toggle off "Always-On." This means your screen goes dark when you lower your wrist, and you tap to wake it instead. If you rarely check email or messages on your watch itself, go to Settings > General > Background App Refresh and turn it off entirely. For Bluetooth, go to Settings > Bluetooth and toggle it off if you're staying near your iPhone all day—your watch will use Wi-Fi or cellular instead.

Disabling these three features alone typically adds 8 to 12 hours to your battery life, depending on your watch model and how heavily you used them before.

Key Takeaways

  • Turn off Always-On display, background app refresh, and Bluetooth in Settings to see the biggest battery improvement when ready.
  • Lower your screen brightness in Settings > Display > Brightness, or enable auto-brightness to let the watch adjust based on light.
  • Disable location services for apps that don't need it, and turn off the heart rate sensor if you're not tracking workouts.
  • Reduce notifications by muting apps in Settings > Notifications, since each alert wakes the screen and uses power.
  • Enable Low Power Mode when your battery drops below 20 percent to restrict background activity and extend the watch by several hours.

Lower your brightness and disable location services

Screen brightness is the second-largest battery drain on most Apple Watches. Open Settings > Display > Brightness and drag the slider to around 40 to 50 percent—most people find this readable indoors and outdoors. If you want the watch to adjust automatically, toggle on "Auto-Brightness" instead, and the watch will dim in low light and brighten in sunlight.

Location services also consume significant power because they keep your GPS radio active. Go to Settings > Privacy > Location Services and turn it off globally, or open Settings > Apps and disable location for individual apps. If you run outdoors and need GPS tracking, leave it on for your fitness app only and turn it off for everything else.

Reduce notifications and disable the heart rate sensor

Every notification wakes your screen, and the screen is expensive to power. Open Settings > Notifications and mute apps you don't need alerts from—especially news, social media, and email. You can still check these apps manually; you just won't be interrupted by constant pings.

The heart rate sensor runs continuously in the background and drains battery even when you're not exercising. Go to Settings > Privacy > Heart Rate and toggle it off if you're not actively tracking workouts or health metrics. You can turn it back on whenever you plan to exercise. Similarly, disable the blood oxygen sensor in Settings > Privacy > Blood Oxygen if you don't use it regularly.

Use Low Power Mode when battery is low

Low Power Mode is a built-in setting that restricts background activity and extends your battery by several hours when you're running low. Swipe up from the bottom of your watch face to open Control Center, then tap the battery icon. When your battery reaches 20 percent, Low Power Mode turns on automatically, but you can enable it manually at any percentage.

In Low Power Mode, background app refresh stops, the heart rate sensor pauses, and some visual effects are reduced. You can still receive calls, texts, and use the watch normally—it just won't refresh apps or track health data in the background. Most people find they can stretch a 20 percent battery to 4 to 6 additional hours with Low Power Mode on.

Update your watch and close unused apps

Apple releases software updates that often improve battery performance. Go to Settings > General > Software Update on your watch to check for updates, or open the Watch app on your iPhone and go to General > Software Update. Install updates as soon as they're available—they sometimes fix battery drain issues in older versions.

Apps running in the background consume power even when you're not using them. Open the App Library on your watch (swipe to the rightmost screen), then press and hold any app and select "Remove from Dock." This doesn't delete the app; it just stops it from staying active. Keep only the apps you use daily in your dock.

Disable Wi-Fi and cellular when you don't need them

If your watch has cellular service, it searches for a signal constantly, which drains battery faster than Bluetooth alone. Open Settings > Cellular and toggle it off if you're always near your iPhone. Your watch will still receive notifications and calls through your phone's connection.

Wi-Fi also uses power to search for networks. If you're moving around during the day, go to Settings > Wi-Fi and toggle it off. Your watch will use Bluetooth to stay connected to your iPhone instead, which is more efficient when you're mobile. You can turn Wi-Fi back on at home or the office if you prefer.

Adjust your workout and fitness settings

If you track workouts, your watch uses GPS, the heart rate sensor, and the screen simultaneously—all power-intensive. Before you start a workout, open the Workout app and choose a workout type that matches what you're doing. Using "Outdoor Run" for a walk, for example, keeps GPS active the entire time when you could use "Walking" instead, which uses less power.

After your workout, check the Activity app on your watch to see how much battery each workout consumed. If a particular activity drains your battery too quickly, consider doing it less frequently or switching to a lower-power alternative like "Indoor Walk" instead of "Outdoor Run."

Frequently Asked Questions

How long should my Apple Watch battery last on a single charge?

Most Apple Watches last 18 hours on a full charge with typical use. Older models like the Series 3 may last 12 to 15 hours. If your battery is draining much faster than that, try the steps in this guide—disabling Always-On display and background app refresh usually solves the problem.

Does turning off Bluetooth really save that much battery?

Yes, but only if you're not near your iPhone. If your phone is in your pocket or bag, your watch uses Bluetooth to stay connected anyway. Turning off Bluetooth saves battery only if you're using Wi-Fi or cellular instead, which is less common in daily use.

Will Low Power Mode prevent me from getting notifications?

No. Low Power Mode only stops background app refresh and health tracking. You'll still receive calls, texts, and notifications from any app. The watch just won't update app data or track your heart rate in the background.

Is it bad to charge my Apple Watch every night?

No. Apple Watches are designed to charge nightly, and the battery is built to handle daily charging cycles. Charging every night is the normal and recommended way to use your watch.

Why is my watch battery draining faster than usual?

Check Settings > General > About and note your watch model and software version. If you recently updated, the battery may improve after a few days as the system optimizes. If it's still draining fast, try restarting your watch by holding the side button until the power-off slider appears, then slide to power off and turn it back on.