Garmin Watch
If you’re an active runner or hiker, you can invest in a GPS device such as a Garmin watch. This is the Garmin Epix Sapphire edition, and while all of the Epix and Fenix watches can access multiple global navigation satellite systems (GPS, GLONASS, and Galileo satellite systems), the Sapphire editions are among the first watches to support multi-band GNSS.
What this means is that each of those satellites broadcast in multiple frequencies, and typically, your watch only picks up one of them. Multi-band means that your watch picks up multiple frequencies from each satellite, which, in theory, will give you the best possible accuracy.
