Increase internet speed
We’re sorry for the clickbait-y title on this one, but this “feature” doesn’t actually improve your Wi-Fi connection. That’d be awesome, but you’re not going to get 1 Gbps from a 1 Mbps internet package. Instead, what this feature does is switch between Wi-Fi or mobile data, depending on which connection is stronger.
You can find this feature by opening Settings, navigating to Mobile Data, then activating Wi-Fi Assist. If, for whatever reason, your Wi-Fi’s signal drops, your iPhone will automatically switch to mobile data to keep your stream running smoothly. When your Wi-Fi’s bars pick up, it’ll reactivate Wi-Fi and turn off mobile data.