Network and connectivity
Wi-Fi
Most people call this connecting to wireless networks.
The Wi-Fi screen joins networks, forgets them, and holds the per network privacy and data settings that matter most.
This setting is present on your iPhone.
- We have this path on file but have not yet confirmed it against an official source.
Where to find it - iOS 10 and later
- Settings
- Wi-Fi
What it does
Beyond joining, each saved network has its own settings for auto join, private address, IP tracking limits, low data mode and DNS. Tap the information button next to a network to reach them.
What changes
When it is on
The iPhone connects to known networks automatically.
When it is off
Everything uses cellular data, which costs money and battery.
Should you turn it on?
Good reasons to turn it on
- Faster and cheaper than cellular.
- Needed for large downloads and backups.
Good reasons to turn it off
- Saves battery when no network is in range.
- Stops the phone joining unreliable public networks.
Battery
Depends how you use it
Privacy
No real change
Performance
Helps
Cellular data
Helps
Storage
No real change
Out of the box: On.
Questions people actually ask
- Why does my iPhone keep dropping Wi-Fi?
- Forget the network and rejoin. If it continues, Reset Network Settings is the next step.
If it is not working
- Forget the network and rejoin it before trying anything more drastic.
- Turning Wi-Fi off in Control Centre only disconnects until tomorrow. Use Settings to switch it off properly.
- Reset Network Settings clears every saved network and password, so note them first.
Related settings
- Private Wi-Fi Address Your iPhone presents a different, randomly generated hardware address...
- Ask to Join Networks This decides whether your iPhone prompts you about nearby networks...
- Low Data Mode Low Data Mode pauses automatic updates and background tasks and asks...
- Reset Network Settings This forgets every Wi-Fi network and password, resets cellular...