It's possible to choose between the speed should be shows as "kilometers per hour" (km/h) or "miles per hour" (mph). 

It can be done by:

  • Open Saphe Link app
  • Select Menu
  • Select Display
  • Find Localization (Android) / Use imperial Devices (iPhone)
    • Deactivate the butten, to show km/t
    • Activate the butten, to show mph,

Change to km/t

Change to mph