An Apple Expert Explains Why Turning Off This One Setting Could Make Your Battery Last So Much Longer: Wifi Assist

Some of the settings on your iPhone are doing a serious number on your battery power — and are likely doing it without you knowing. You may be onto the fact that a too-bright phone can kill your battery and maybe you’ve even disabled Background App Refresh. But Wi-Fi Assist is yet another setting you need to know about because disabling could mean the difference between a phone battery that goes the distance and one that conks out long before it should. Here’s what you should know about dialing Wi-Fi Assist for better battery outcomes. 

Wi-Fi Assist can be an amazing tool. It boosts your Wi-Fi signal using data and does you the favor of automatically switching to cellular when you have a poor Wi-Fi connection. The feature debuted on iOS 9 and is incredibly convenient. If you’re in a public area and suddenly your Wi-Fi signal drops, Wi-Fi Assist works by getting your mobile data to take over so that you keep your connection.