If you look at Sensorly's coverage reports »www.sensorly.com/map/4G/US/USA/S···10sprint from users with Android Phones it shows better observed coverage than what AFE reported. There are sections where there does not look to be coverage shown on AFE where someone has actively mapped the coverage on Sensorly...
This is true. I know even from one phone to another phone of the exact same brand, the coverage can be different. Anyway, that's my recent experience in testing some phones on Verizon.