system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why are car navigation and voice controls so clunky when we have the technology in phones to be very smooth?
gpt
Siri and all those like it ship the audio off your phone to a server at Apple/Google/wherever to do the speech to text processing. They have huge farms of optimized servers for that.   Your in-dash navigation system has to do it all itself with a relatively slow processor.