Home/FAQ/Display ModesDisplay Modes & UnitsWhat units does the speedometer support?Odo supports km/h, mph, and knots. You can change units anytime in the app settings.Try Odo free on iPhoneGPS speed, route recording, fuel tracking — all on-device.Download on theApp StoreRelated questionsDoes Odo support HUD (windshield) mode?Does Odo work on Apple CarPlay?Does Odo support wired and wireless CarPlay?What does Odo show on the CarPlay screen?← All QuestionsMore on Display Modes