$300 MSRP, with e-log integration and all sorts of other fancy shit. $260 refurbished.

https://buy.garmin.com/en-US/US/p/589643

Or $110 used: https://www.ebay.com/itm/254340765627

$230 for a TomTom: https://www.amazon.com/dp/B01KX8JID8

There are also apps for smartphones and tablets that truckers can use.