Speedometer and GPS: Whose speed reading is more accurate?

Well, there is a thing about driving vehicles that you always get assistance of some kind nowadays. You can see which speed you are driving and where are you going and what places are you in easily. Even with you’re mobile, you can check that the speed of your vehicle moving using a speedometer or a GPS that also works as a speedometer. So which of those two.you should be used for better speed accuracy? For that, we do need to dig some dirt and find it out.

What is a speedometer?

Simply it...