GPS Dog Trackers or dog tracking collars Best GPS Pet Trackers are devices that may be used in order to track the whereabouts of your dog or dogs. GPS dog tracking devices, much like the GPS devices in your vehicles, utilize assisted global positioning satellite technology to track your dog. Although a tracking device is most often used by hunters in order to track their hunting dogs, anyone who needs to keep tabs on their dogs can use them. When it comes to GPS tracking devices there are a couple of different options. The one that most hunters will use though is the handheld version.