Whistle has a full-featured GPS tracking and activity monitoring system for pets. With features like Find My Pet Mode, Escape Alerts and Health Monitoring, Whistle offers a detailed view of your dog's behavior and whereabouts. The system tracks daily activity and health trends, with 15-second location updates and customizable fitness goals. Prices range from $69 to $149, but you'll need a subscription for the full feature set.
Another good option is Petcube. Petcube offers a variety of interactive pet cameras and GPS trackers, including location updates and escape alerts. The system also includes 24/7 online vet access, HD video and audio, motion and sound alerts, night vision and adjustable mounts. Petcube integrates with Amazon Alexa and can be accessed through the Petcube app on iOS and Android devices, though GPS tracking requires a subscription starting at $5/month.