- As mentioned earlier, there are several resident GPS programs for Smartphones that do not rely on cellular data, and these days some of these screens are stupid large
- Even when in the phone, these programs prompt you with turns, etc. in the background. Text messages, and other pop-ups slide down and only populate that very top of the screen with no impact on the GPS screen. These disappear about 3 seconds later
- I have no problems calling up my GPS screen in the middle of a phone call.
- On my dash GPS, it is up 100% of the time except for the 2 seconds it's responding to my voice command on what to dial
-If you don't trust GPS, you don't trust all of them. They all run essentially the same map data: In vehicle dash, standalone, or smartphone. They all have sent me east when I should be going west at times for no reason