Adding a car key to an iPhone requires going through the manufacturer's app and then pairing the phone to the car via NFC.
Apple’s car-focused tech got a nifty update at WWDC, letting users start their cars with their iPhone. Announced Monday, Apple’s new CarKey digital car keys feature will allow you to unlock and start ...
Storing car keys on Android requires a wallet app such as Samsung Wallet or Google Wallet, and usually requires a pairing ...