Your phone’s ‘5G’ icon and signal bars are lying to you
Then you don’t have to think about 5G icons. On iPhones, go to the Settings app → Cellular → Cellular Data Options → Voice & ...
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How to use cellular data on a cellular-enabled Apple Watch, and check your data usage
the Cellular icon is white and there's a green iPhone icon above it. How to check your Apple Watch's cellular data usage on an iPhone 1. Open the Watch app for iPhone. 2. Tap the My Watch tab.