Device Help Apple iPhone 4S Connectivity
Apple iPhone 4S

Apple iPhone 4S

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Turn Wi-Fi Assist on or off

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Getting started

Basic functions

Calls and voicemail

Messaging

Apps and media

Connectivity

Turn mobile data on or off

Back to Connectivity

You can limit your data usage by turning off mobile data. You'll then not be able to access the internet using the mobile network. You can still use Wi-Fi even though mobile data is turned off.

Step 1 of 4

Find "Mobile Data"

Tap Settings.

Step 2 of 4

Find "Mobile Data"

Tap Mobile Data.

Step 3 of 4

Turn mobile data on or off

Tap the indicator next to "Mobile Data" to turn the function on or off.

Step 4 of 4

Return to the home screen

Tap the Home key to return to the home screen.

Swipe right for the next step

Tap anywhere to dismiss

Video guides

Issue: Slow Mobile Internet on iPhone Issue: Can't Use Mobile Data with iPhone Issue: Can't Make or Receive Calls with iPhone Issue: Slow WiFi on iPhone Issue: Slow WiFi on iPhone Issue: Can't Connect to WiFi with iPhone

Media guides

Clean up and speed up your smartphone Can't make or receive calls on your smartphone? Can't use mobile data on your smartphone? Can't connect to WiFi on your smartphone? Slow mobile internet on your smartphone? Slow WiFi connection on your smartphone? 3 Simple tips to keep your smartphones safe