10,000,000 dogs
are lost in the
U.S. every year.

We're here to change that.

Fi has been built
for lost dog scenarios.

Battery Life

Up to 3 months of battery life.

See how we compare

Lost Dog Mode

Live location tracking so you can bring your escape artist home safely.

20-30% more coverage

LTE-M gives you more coverage than any other smart collar, across the US.

See how we compare

Lost dog Mode

Lost Dog Mode turns on live location tracking to help you find your escape artist as quickly as possible.

While Lost Dog Mode is active, you’ll receive notifcations about your pets location every minute. It’ll also activate the red pulsing LED light on the Fi collar to make your dog easier to spot at night or in low visibility conditions.

Fi also offers a 24/7 US-based lost dog helpline staffed by pet recovery experts. So, whether you’re driving and need directions to your lost dog, or your dog gets out on their first day with the collar and you need some extra help - we’re a phone call or text message away.

Lost Dog Mode

How it works

  • Activates red pulsing collar lightMakes it easier to spot at night or in low visibility.

  • Instantaneous escape alertWe'll send an alert to your phone the moment your dog leaves its safe zone.

  • Live location trackingWe'll continuously keep you updated on your dog's location in real time.

  • 24/7 lost dog helplineThe only Smart Collar to offer a 24/7 US-based helpline staffed by pet recovery experts.



About Fi
Fi Stories

“You won’t find a better GPS collar and you most definitely will not find a more caring team of dog lovers.”

— Revan's Dad


Battery icon

Unmatched Battery Life

Up to 3 months between charges under
typical usage conditions.

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Durable Design & 1yr Warranty

Chew-proof, water-proof (even the ocean), and generally dog-proof.

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Service & Coverage

With the new LTE-M Network, always have the best coverage no matter where you are in the US.

An image of the Fi collar