Apple Watch battery life isn’t really a problem – I’ve not run out of battery yet. But that doesn’t mean you shouldn’t know how to get more out of your battery when you need it. Here's what to do...
Those snippets of information you get when you swipe your Apple Watch grab data from your iPhone. They don't use too much energy, but if you think you’ll need more battery life then you should disable all the ones that aren’t so essential. Do so in My Watch>Glances, where you just need to tap the red minus button beside any less important apps.
Turn off unwanted notifications – this makes sense because each new notification you receive will launch the Taptic Engine, which uses a little power to give you motion feedback. Limit notifications to only your most essential info in My Watch>Notifications where you can flick those you don’t need to mirror to off.
Reduce Transparency in My Watch>General>Accessibility>Reduce Transparency, you’ll lose some of the visual appeal of the product but you might get a few critical minutes; use the Reduce Motion tool (also in Accessibility) for the same reason.
Back to My Watch>General>Accessibility> and turn your Apple Watch display to Grayscale, doing so should save a lot of power (and some people like the appearance).
My Watch>Sounds & Haptics is the place to go to limit the energy your watch uses giving you haptic feedback. Alternatively on your Watch, launch the Settings app, open Sounds & Haptics and turn Prominent Haptics to Off. You may also save a little more power by reducing Haptic Strength using the slide control in Sounds & Haptics.
Volume & brightness
There’s a point when you need to ask yourself just how little functionality you’re prepared to live with, but if you need your Watch to work a little longer then reduce Alert Volume and display brightness in the Sounds & Haptic settings. You can access this on either your Watch or iPhone.
Your Apple Watch will automatically download any available Apple Watch equivalents of any apps you have installed on your iPhone. This feature is available in General>Automatic Downloads; toggle the Automatically Download Apps button to off.
Your Watch uses power when it tracks your workouts using its built-in sensors. Launch My Watch>Workout and toggle Show Goal Metric to off and enable Power saving Mode to disable the heart rate sensor. While doing so means calorie burn calculations will be less accurate, you will save a little more battery life.
Enabling this mode (in the Connected frame) on your Apple Watch or iPhone will immediately apply it to the companion device. You will still be able to use some apps but you will no longer receive messages, alerts or calls on either device.
Your last option to keep your watch working, Power Reserve, is accessed when you press the side button on the Watch until the power dialog appears. Just tap Power Reserve to enable this – now your Apple Watch will only do one thing for you, tell the time. But perhaps that’s all you needed, after all.
Of course, all of these tips will be a little meaningless if your iPhone runs out of power so do read Apple iPhone power; 20 tips for longer battery life. The article is a little old, but gives you what you need to squeeze a little extra time from your iOS device.
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