The Fi Series 3 Smart Dog Collar is a GPS-enabled pet tracker with comprehensive health and activity monitoring capabilities. This collar provides real-time location tracking using AT&T LTE-M network with GPS satellite connections, offering unlimited nationwide range and precise location data through Lost Dog Mode. The device features multiple geofenced safe zones with immediate escape alerts when your dog strays beyond designated boundaries.

Built with an industrial-strength stainless steel frame rated to sustain 400-500 lbs of tug force, the collar is IP68 and IP66K certified waterproof up to 50 meters, making it suitable for swimming and all weather conditions. The collar measures 28mm height by 50.6mm width by 11.5mm depth and weighs just 28 grams. It features a customizable LED light with seven color options for nighttime visibility.

The Fi app delivers AI-powered behavior detection that tracks activity, rest, barking, licking, scratching, eating, and drinking patterns. The system provides personalized walk tracking with activity recommendations based on breed and age, sleep pattern analysis, and organized veterinary records management. The AI Companion offers health insights, vaccine reminders, and answers to pet care questions.

Battery life reaches up to 3 months per charge with convenient wireless charging via magnetic cradle. The collar requires an active Fi subscription for full functionality, with plans starting at $19 per month. Available in multiple sizes to fit dogs with neck sizes ranging from 9.5 to 31 inches. The Costco package includes a 14-month membership with the smart dog collar.