According to actual test data, disabling background app refresh can save an average of about 30% of the Apple Watch Series 1 Smart Watch Batteryower. And most importantly—don’t worry, this won’t affect push notifications at all; it simply prevents apps from silently updating and consuming power in the background.
1. How to turn it off? It’s very simple.Open the “Settings” app on your Apple Watch → Go to “General” → Find “Background App Refresh”.
You’ll see a toggle button, below which is a list of all installed apps. Each app can be individually configured to allow or deny background refresh. The most power-efficient way is to turn off the master switch, disabling all apps from refreshing in the background at once.
After turning it off, those weather, news, and health apps that were secretly running in the background will all stop.
2. Actual Apple Watch Series 1 battery test results: From 8 hours to 24 hoursAfter disabling background app refresh for the first time, I specifically conducted a full battery life test:
I removed the watch from the charger at 7 AM, fully charged. I received notifications normally, occasionally checked the time, and raised my wrist to check the time about 20-30 times a day. By 7 AM the next morning, a full 24 hours later, the Apple Watch Series 1 still had 12% Apple Watch Series 1 Smart Watch Batteryremaining.
That means the Apple Watch Series 1’s battery life jumped from 8 hours to 24 hours. Not just 1.5 times, but a full 3 times!
What surprised me even more was that after disabling background refresh, the watch’s operation became even smoother—the processor didn’t need to frequently switch between background tasks and foreground responses, making everyday swiping and app opening significantly faster.
3. Power-saving tips for combined use (the effects are even more amazing)
Enable Low Power Mode: Control Center → Tap Apple Watch Series 1 Battery Percentage → Turn On.Disable Raise to Wake: Settings → Display & Brightness → Turn off Raise to Wake and set the wake-up duration to 15 seconds.
Reduce screen brightness by 1-2 levels: Settings → Display & Brightness → Lower Brightness. This has little impact on daily use but can save a significant amount of Apple Watch Series 1 Smart Watch Batterypower.
Turn off ambient noise detection: On your iPhone, go to Settings → Noise → turn off “Measure Sound”.
Regularly restart to clear cache: Restart your watch every 1-2 weeks to allow the system to clear accumulated temporary files and memory fragmentation.
Enable optimized battery charging for your Apple Watch Series 1: Go to Settings → Battery → Battery Health → turn on “Optimize Battery Charging”. This allows the watch to learn your charging habits and avoid prolonged full charging, thus extending battery life.
The biggest culprit for battery drain on the Apple Watch Series 1 isn’t excessive screen brightness, but the master switch hidden in “General → Background App Refresh”—turning it off won’t affect message reception, and it triples the Apple Watch Series 1 Smart Watch Battery life. Add to that a black watch face, turn off raise-to-wake, lower brightness, and turn off noise detection—who says this old watch can’t perform?
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