One of the more exciting functionality announcement from Samsung's Galaxy S21 line of smartphones is that they will be able to use Ultra Wide Band Bluetooth to find and unlock new vehicles from Audi, BMW, Ford and Genesis. Samsung is expanding its ecosystem by partnering with carmakers to add the convenience so smartphone owners can access and unlock upcoming vehicles.
“With precise distance calculation, Samsung’s UWB-enabled digital key sends short pulses between the mobile device and the paired car, unlocking the door once you reach it,” Samsung explained. “Without UWB, users will be able to use their compatible smartphones as a car key through NFC.” Models like the Galaxy S21 Plus, Galaxy S21 Ultra, and Galaxy Note 20 Ultra support UWB for finer and more accurate location tracking. Turning smartphones into digital key fobs can be very convenient since car owners can possibly share access to their vehicles without turning over their real keys. The feature is expected to roll out later this year pending some standardization.
Source: XDA Developers