Even car sat nav is an iffy subject. If you car has a data connection, there’s good odds that someone is harvesting that data.
For example, I’ve heard GMC happily sells OnStar data to the lowest bidder - it comes anonymized and aggregated but it’s hard to believe they aren’t collecting it in a less anonymous fashion.
Garmin’s very solid at keeping your info private from most third parties. Should be safe from anything outside of a valid law enforcement request as long as you aren’t syncing with another service.
A car sat nav, and something like GrapheneOS does hands free calling. Not sure if you can sync music through it as I haven’t tried yet.
I think the individual items are probably workable, but an integrated experience, possibly not.
Even car sat nav is an iffy subject. If you car has a data connection, there’s good odds that someone is harvesting that data.
For example, I’ve heard GMC happily sells OnStar data to the lowest bidder - it comes anonymized and aggregated but it’s hard to believe they aren’t collecting it in a less anonymous fashion.
How about Garmin?
Their Smartwatches are recommenced in Mozilla’s Privacy Not Included. I cannot imagine their sat navs have an issue. Especially older models.
Garmin’s very solid at keeping your info private from most third parties. Should be safe from anything outside of a valid law enforcement request as long as you aren’t syncing with another service.