There is a specific kind of anxiety reserved for Apple Watch owners. It hits you around 7:00 PM. You glance at your wrist to check your activity rings, only to see the dreaded red lightning bolt icon. Your watch is at 10%, but your day is far from over. You still have a workout planned, dinner with friends, or simply need your alarm to go off the next morning.
We love our Apple Watches for their incredible features—from tracking our heart rate to unlocking our Macs and paying for coffee. However, all those background processes, bright screens, and constant notifications come at a cost. While Apple promises "all-day battery life" (usually rated around 18 hours for standard models), power users often find themselves reaching for the charger long before bedtime.
The good news? You don’t have to turn your smart device into a "dumb" watch to get it to last. By tweaking a few specific settings, you can significantly extend your battery life without sacrificing the features you love most. Let’s dive into the essential tips to stop the drain.
1. Tame the "Always On" Display
If you have a Series 5 or newer (excluding the SE), your watch features an "Always On" display. It looks fantastic and makes the device feel more like a traditional timepiece. However, keeping those pixels lit—even dimly—is arguably the single biggest drain on your battery.
While Apple has optimized this technology beautifully, turning it off can arguably save you 15% to 20% of your battery life over the course of a day. It’s a trade-off, but if longevity is your priority, this is the first switch you should flip.
How to adjust this:
- Open the Settings app on your watch (or the Watch app on your iPhone).
- Tap on Display & Brightness.
- Scroll down to Always On and toggle it off.
If you can't bear to lose the Always On feature, consider reducing the "Wake Duration." This controls how long the screen stays fully bright after you tap it. Setting this to 15 seconds instead of 70 seconds ensures the screen dims quickly after you’ve checked your notification.
Pro Tip: Check your brightness settings while you are in the Display menu. You rarely need your watch at maximum brightness. Setting it to the lowest or middle setting is usually perfectly visible and saves a surprising amount of energy.
2. Curate Your Notifications (Stop the Buzz)
Think about how many times your wrist buzzes in an hour. Every time your watch vibrates and the screen lights up for a notification, it sips battery power. Do you really need to be notified on your wrist that a brand you bought socks from three years ago is having a flash sale? Probably not.
The Taptic Engine (the hardware that creates the vibration) requires physical energy to move. By limiting notifications to only the essentials—calls, texts, calendar alerts, and maybe your home security system—you save battery and, frankly, your sanity.
How to customize alerts:
- Open the Watch app on your iPhone.
- Tap on Notifications.
- Scroll down to the "Mirror iPhone Alerts From" section.
- Turn off switches for apps that aren't urgent (e.g., Instagram, Twitter/X, Games, Shopping apps).
By doing this, the notifications will still appear on your iPhone quietly, but your watch won't waste energy lighting up and vibrating for non-urgent matters.
3. Manage Workout and Fitness Settings
For many of us, the Apple Watch is primarily a fitness tracker. However, the sensors required to track your fitness—specifically the heart rate monitor and GPS—are power-hungry beasts. While you shouldn't turn these off during a run (that defeats the purpose!), you can optimize how the watch behaves when you aren't actively exercising.
One feature that constantly runs in the background is "Workout Reminder." Your watch is constantly analyzing your movement to see if you look like you're running or walking, so it can prompt you to record a workout. If you are diligent about starting your workouts manually, you don't need this sensor polling constantly.
To disable workout detection:
- Open Settings on your Apple Watch.
- Scroll to Workout.
- Toggle off Start Workout Reminder and End Workout Reminder.
Did you know? If you are doing a long workout like a hike or a marathon walk, you can turn on "Low Power Mode" during the workout. This reduces the frequency of GPS and heart rate readings. It’s less precise, but it ensures your watch doesn't die at mile 10.
4. Audit Your Watch Face and Complications
This is a tip that flies under the radar. The face you choose and the "complications" (widgets) you add to it have a direct impact on battery consumption. A watch face that is mostly black pixels uses significantly less power than a face with a white or bright colored background, thanks to the OLED screen technology.
Furthermore, complications that update frequently are battery vampires. A complication that shows the current decibel level involves the microphone listening constantly. A complication showing your heart rate checks your pulse frequently. A weather complication pulls data via your phone or Wi-Fi regularly.
Strategies for a battery-friendly face:
- Go Minimal: Use a simple face like "Numerals Duo" or "Modular" with a dark background for everyday wear.
- Static Complications: Choose complications that act as shortcuts (like a button to open the Timer or Music) rather than live data feeds (like Noise levels or Compass).
- Turn off "Listen for Hey Siri": If you don't use voice commands often, your watch is constantly listening for the wake word. Turn this off in Settings > Siri and use the Digital Crown press to activate Siri instead.
5. Background App Refresh
Just like on your iPhone, apps on your Apple Watch want to refresh their content in the background so that when you open them, the data is ready. However, many watch apps are rarely used. Does your calculator app need to refresh in the background? Does the stocks app need to update if you never look at it?
Limiting this activity reduces the processing power the chip has to use throughout the day.
How to streamline background activity:
- Go to Settings > General.
- Tap Background App Refresh.
- You can turn it off completely (maximum savings) or toggle it off for individual apps that you rarely use.
The "Nuclear Option": Low Power Mode
If you’ve tried all the above and still find yourself running low on a particularly long travel day, Apple introduced a game-changer in watchOS 9 called Low Power Mode. Unlike the old "Power Reserve" which turned your smart watch into a digital brick that only showed the time, Low Power Mode keeps the watch smart—mostly.
When you turn this on, it disables the Always On display, limits background sensors, and turns off Wi-Fi and cellular connections when your iPhone isn't nearby. It allows you to squeeze several extra hours out of the device while still receiving messages and tracking steps.
To toggle this on quickly, swipe up from the bottom of your watch face to open the Control Center, tap the battery percentage percentage, and slide the Low Power Mode switch.
By implementing just two or three of these changes, you will likely see a dramatic improvement in your daily battery life. You don't have to sacrifice the utility of the device; it’s all about turning off the features you don't use so you have power for the ones you do.