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Fi Mini

Fits small.
Tracks it all.

The world's smallest, lightest wearable for dogs and cats, with unmatched GPS tracking and AI-powered health monitoring for up to 2 months on a single charge.

Shop Fi Mini

The smallest, lightest wearable.

Designed for your dog or cat.

A dog wearing a pink Fi Mini on a beaded collar, seen from behind on a stoop

Mini

For little legends

  • Attaches to any existing collar
  • AI-powered health & behavior insights
  • Up to 2 months battery life
Shop Fi MiniLearn More

Full of features.

A person holding a cat wearing a Fi Mini in a corner store
A Fi Mini connected to a USB-C charging cable
A dog on a walk with a Fi Intelligence insight card
The five Fi Mini color cases in a row
Hardware

Bright. Bold.

Track in style with five color cases, included with purchase.

Playtime-tested.

A Fi Mini beside a stack of blueberries

Lightweight. Weighs just 16 grams — about 4 blueberries.

A Fi Mini beside a dime for scale

Truly mini. It's the world's tiniest wearable for dogs and cats.

A Fi Mini covered in water droplets

Waterproof. IP68-tested in salt water. Built for beach day.

A Fi Mini in a green case strapped to a collar

Stays attached. Straps securely onto any collar.

Fi Mini cases on a range of collars

Stands out. Pick your top color. Pair with your top collar.

Location

Always-on GPS.

Location tracking that moves with them.

Push notification reading: Location Update, now — Mimi is with Syeda.

One app.
Total peace of mind.

The Fi app home tab showing location, steps and rest

A full look. Check location, activity and more from the home tab.

Activity and rest graphs in the Fi app

Activity & rest. Know steps, how much they've been sleeping and more with live activity monitoring.

A live location map in the Fi app

Track your dog or cat 24/7. See their location in real time.

Lost Mode showing a tracked route in the Fi app

Lost Mode. Find them as fast as possible if they run off.

The Search Party screen in the Fi app

Search Party. Recruit anyone who can help with the search.

Drawing a Safe Zone on a map in the Fi app

Safe Zones. Set custom invisible fences. Get alerts when they leave.

Fi Live Activity widgets on an iPhone lock screen

Live Activity Widgets. Keep tabs on their latest activity from your lock screen.

Activity & behavior

Understand their health.

Monitor your dog's steps, scratching and more — then let Fi Intelligence decode it all using AI. For cats, see overall activity and rest.

Fi Intelligence insight: Theo's drinking is up 32%, and his rest is up 40% over the past 7 days.

Step goals, strain score and more.

A Fi Intelligence insight card over a photo of a dog drinking

Catch habits. Mini tracks their behavior and detects new patterns.

A step count and strain score card over a photo of a dog on a walk

Steps & rest. See each step and know if they're well-rested.

Activity and rest graphs over a photo of a cat

Activity overview for cats. Check their activity level & how much they're sleeping.

A step goal ring showing 9,855 steps over a photo of a dog

Goals & streaks. Set daily goals and track the days in a row they hit them.

A strain score card over a photo of a dog wearing a Fi Mini

Strain score. Know if they're ready to play or need to take it easy.

Gift Card

Give the gift of Fi.

Treat a fellow pet parent and send a Fi Gift Card that they can use on any Fi wearable kit or accessory.

A dog's paws resting beside a Fi gift card
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A dog wearing a yellow Fi Mini on its collar

Big Savings

Up to $70 off Fi Mini.

Don't miss this limited-time offer on the world's smallest, lightest, brightest wearable for pets.

Save now