Fi Mini turns any collar into a GPS Tracker for cats and dogs

Ultra-light, waterproof, and clip-on ready, Fi’s smallest, smartest tracker is built for pets under 10lbs.

Most GPS pet trackers still feel like they were made for huskies, not your 9-pound adventure cat or sprightly dachshund.

But the new Fi Mini changes that.

Weighing just 0.56oz, it’s the lightest smart tracker Fi has ever made, and finally brings full-featured GPS and health tracking to pets of all sizes. Yes, that includes cats.

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One clip, instant peace of mind

Unlike Fi’s Series 3+ smart collar (Kepler's collar of choice), the Fi Mini doesn’t require you to ditch your pet’s existing collar, even though we found a way around that, because we like to tinker.

It clips onto nearly any collar or harness, cat or dog, using one of three attachment systems included in the box (it fits collar widths from 3/8" to 1").

If you’ve been waiting for a lightweight, budget-friendly option, this one nails it.

The Fi Mini costs $129/year, hardware and membership included. That’s less than $12/month to keep tabs on your pet in real time with escape alerts, GPS live tracking, and activity stats right from your phone.

GPS precision in a micro form factor

Fi Mini connects via the Verizon LTE-M network and offers a powerful suite of features:

Live GPS tracking & instant escape alerts
Up to 3 weeks of battery life
IP68 waterproof rating
Award-winning health & activity tracking
USB-C charging
And soon: AI-powered behavior tracking via Fi Mini+ (coming Fall 2025)

That upcoming Fi Mini+ upgrade promises premium insights powered by the same behavior engine found in Fi’s flagship collar.

You’ll be able to monitor sleep patterns, unusual behaviors, and activity changes, all from this tiny device.

Champers and Kepler have had some time with their Fi Mini; yes, we have two incredibly wild pets, haha - below is Champers' review (in his voice)

Small dogs, meet big tech

Fi Mini is intentionally designed for pets under 10 pounds, including breeds that have long been left out of the pet tech conversation: toy poodles, chihuahuas, dachshunds, terriers, and of course, CATS.

Fi has done something simple but powerful here, it shrunk down all the smarts of its flagship collar into a tracker that works with whatever gear your pet already loves.

Whether you're worried about backyard escapes, want to ensure he's staying fit, or just stay more connected to your cat's antics, Fi Mini makes pet tracking more accessible, practical, and stylish than ever.

Shop Fi Mini

Available now at tryfi.com, shipping begins September 1.