About This

NEXT-GEN GPS TRACKING FOR DOGS: Fi Collar Series 3+ is our fastest, most reliable smart collar yet—featuring 2x improved GPS performance to locate your dog in real time, nationwide, with no range limits. Designed with upgraded antennae to keep you connected when it matters most.
ESCAPE ALERTS + LOST DOG MODE: Custom virtual fences alert you the instant your dog leaves a safe zone. If they’re on the move, Lost Dog Mode activates live tracking with rapid location updates so you can act fast. A pet GPS tracker for dogs that you can count on.
AI-POWERED HEALTH + BEHAVIOR TRACKING: The first smart dog tracking collar to detect activity, rest, barking, licking, scratching, eating, and drinking—giving you a complete picture of your dog’s well-being. It's more than a dog pedometer.
APPLE WATCH INTEGRATION + AI COMPANION: View live location, activity, and Lost Dog Mode from your Apple Watch. Plus, ask the built-in AI Companion anything—from behavior questions to care tips. This apple iphone pet tracker for dogs even delivers personalized reminders for vet visits, vaccines, and more.
SMART VET RECORDS: Never lose track of your dog’s medical history again. Upload their health documents and let Fi’s GPS dog tag organize, summarize, and store them—all in one place.