Apple has given us more options than ever with the 8 and 8 Plus in terms of quality and frame rate control, so let's dive into our options. To change the quality of normal videos, open up "Camera" in the Settings app, then tap on "Record Video." From this list, you'll see the following options.
Only you know what quality you need for any given project, so take that into consideration before choosing. However, if you're worried about your video quality suffering, I'd recommend going with 1080p at 30 fps. You'll still save battery this way, but your video will still look great. You also have some control over the slo-mo camera.
This can be found in the same "Camera" settings menu, just tap on "Record Slo-mo" instead. Unfortunately, on the iPhone 8, Apple no longer offers 720p slow-motion video recording. While that's good for the quality of your viral slo-mo video, that's not as good for your battery. What you can choose from is the frame rate. Apple lets you pick between 120 fps or 240 fps. Guess which one we'd recommend for better battery life, I'm not saying that shooting slo-mo at 120 fps is going to be good for your battery. What I am saying is if you need to shoot slo-mo when your battery is low, 120 fps is going to use less battery than 240 fps.
Background app refresh can be extremely useful for apps that need to be updated in real time, but for many apps, it will suffice to have apps load any new data only when actively open and running. To disable or limit background app refresh, navigate to Settings and then click on General. From there, select Background App Refresh.
You should be able to view a list of all of your apps and their current background app refresh setting. Go through your app list and toggle off the background app refresh for unnecessary apps to make your battery life last longer. Enable Low Power Mode: Low Power Mode was a gift from the iOS 9 update and is basically all of the best battery life saving techniques rolled into one convenient package.
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