Sure, assuming the GPS signal is alright, the bus route didn’t get redirected, there are no delays, there is no bus replacement service, the bus is even remotely on time, and a bunch of other perfect world public transport assumptions that never hold.

This stuff needs to be updated live, work in places with spotty internet connections, and have tons of other edge cases I probably didn’t even think of. Needing this stuff to work on a watch that may or may not be getting its data connection through a Bluetooth connection sure wouldn’t make it easier.