How to display your speed in Pokémon GO?
It's easy! Just start Poke Speedometer, push your home or back button on your phone, start Pokémon GO and watch it happen.
The app will become visible every time Pokémon GO is active.
You might want to show your current speed in other apps too. Poke Speedometer allows you to do so: in the home screen, go to 'Applications' and just tick every app you want Poke Speedometer to show up.
If Poke Speedometer overlaps something you need, simply tap the speedometer and it will hide for 10 seconds. Or you can drag the speedometer to another position on your device's screen!
To change your preferences, like units of measurement in mph or km/u, just start Poke Speedometer. Every option is in the home screen. If you do not want the units of measurement to show up, you can choose to hide it. And you can even adjust Poke Speedometer's transparency.
To stop using Poke Speedometer, uncheck the 'Enable overlay' option in the home screen.