I always use my Garmin GPS. Helped me a number of times when I got lost on the side streets here in Metro Manila. I also use Waze, pero usually before driving just to check for traffic.
I have Waze, Google Maps, and Navigator in my phone pero I prefer my car's built-in GPS (AVT).. Hassle kasi dati nung phone pa gamit ko na pag naliligaw ako I had to pull out my phone, turn on the gps, turn on the app, key in my destination, plug sa charger, ikabit sa car mount and wait for the phone mag-lock sa satellites before I can go. Tapos biglang tatawag or magtetext.
Whereas sa built-in, I only need to press a few keys and pwede na sumibad in a few seconds since mabilis mag-lock sa satellite.
Only disadvantage is kailangan pa maghintay ng updates from AVT.
I still prefer the GPS installed in vehicles,
kasi pag sa smartphone tagal maghanap yung gps lalo napag sa
province hirap talaga kailangan ng wifi or dapat postpaid smartphone mo
I don't know about the newer GPS devices now. But, my Garmin doesn't warn about police speed traps like the GPS in my friend's cellphone. No wonder he was speeding on the New Jersey Turnpike.