cell signal strength on an iphone 12 pro max

Look at the “bars” in the status bar at the top.

MGEE1 Said:

"cell signal strength on an iphone 12 pro max: How do I measure cell signal strength on an iphone 12 pro max?"

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About Cellular Signal Strength:

A. Being Signal Strength:

Look at the vertical bars on the top-right of your iPhone. That shows you how much of a signal you have. As to whether you see 5G, you can only get what your device is capable of, and what services is available in your area. So, if you have a 5G-compatible phone, and only 4G is there, then you only get the speed of 4G.

B. View your Cellular Plan:

As for the speed, ask your Carrier, or log into their site, and view your cellular plan.

MGEE1 wrote:

I would like to see the signal strength in dBm.

Then do a web search for "iPhone field test mode"

MGEE ~ If you want to record or warn about the current number of signal bars, a custom shortcut can get it:

Shortcuts User Guide for iPhone and iPad

Screenshot of shortcut:

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Neat trick!