Apple iPhone View Signal Strength
Apple iPhone
View Signal StrengthChecking your signal level can help you understand and troubleshoot call quality, data connection speed and whether network issues are affecting your Apple® iPhone®.
Before you begin
If you see 'SOS' or 'SOS only' in the Status Bar, your iPhone isn't connected to a network, but you can still make emergency calls.
Steps
- From the Status Bar, view the signal bars in the upper-right corner.