Vexilar Navionics Sonar charts live review tutorial 

I heard back from Navionics. The contour depths when using the android app is actually (2) meters. (6 feet). The Apple (iOs) it is adjustable from 2 meters to .5 meters (18 inches). They will be making an update to the android app so it will match the iOs app. I will send an advise when they send out the Android update.

I have the WiFi only iPad mini (no gps), will I still be able to map lakes?