>The average for Boston is 21 meters; New York 27 meters; Austin, TX, 28 meters; Washington 29 meters, and Chicago 38 meters.
https://www.mobilemarketer.com/ex/mobilemarketer/cms/news/re...
I got my own room in my house with it, back in the 3G/4G days. I'm not sure what modern software and hardware can do it now, but I'm pretty sure it's even more accurate even without 5G.