Does iPhone use Wi-Fi over cellular data?

When should I use cellular data vs Wi-Fi?

You should use cellular data when: You can only connect to a public WiFi network or a network that is not secure. The WiFi network is slow. You have a weak WiFi signal.

What uses up data on my iPhone?

To see how much mobile data you’ve used, go to Settings > Mobile Data or Settings > Cellular. If you’re using an iPad, you may see Settings > Mobile Data. Scroll down to find out which apps are using mobile data. If you don’t want an app to use mobile data, you can turn it off for that app.před 6 dny

How to fix iPhone using data while on WiFi?

Here’s how: Start by going to Settings on your iPhone. Next, go to Cellular. Then, you need to tap on Mobile Data. Then scroll until you find System Services. This will show how much data each app on your iPhone is using. How to Stop iPhone From Using Data While on WiFi?

Does iOS 5 use cellular data?

When you are actively using the phone on wifi, iOS 5 will not use any cellular data. Edit (thanks, Gerry): When the phone is locked, it may turn off wifi (in order to save battery), and use data for some background processes like push mail. Chances are those processes will use negligible amounts of data, but still note worthy.