Fi - GPS Dog Tracker

1.63K reviews
Content rating
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About this app

Introducing Fi, the world’s first LTE smart dog collar.

Paired with a Fi collar, the Fi app brings you even closer to your dog. View your dog's location and activity levels on the app, and be alerted if they ever escape from a designated safe area. The smartest pet parents choose Fi.


On vacation? Friend walking the dog? Instantly track your dog’s location no matter where they are. Fi gives you the peace of mind to always know that your dog is safe.

Make sure your dog never escapes from your backyard. Our dog tracker lets you designate safe zones around your dog’s most popular residences, whether that’s your house or your grandma’s, and we’ll alert you if they ever leave home without a walker. So, if your dog runs out the gate you forgot to close, you’ll be the first to know.

Fi monitors the steps your dog takes and compares it to other dogs wearing a Fi collar, so you’ll always know how much exercise they’re getting, and how much more they need. Set daily exercise goals to hit and view all previous walks and activity. Keep your dog happy and healthy with Fi.

We’re putting an end to lost dogs. If your dog’s got out, enable Fi’s unique Lost Dog Mode at the click of the button. A red light will appear on their collar, and the collar will report its location every minute as they move. Make sure you never lose hide and seek again, with Fi.

Introducing the world’s first LTE dog collar. Running on a brand new LTE-M network, you’ll only receive the most accurate GPS location reports and always know where your dog is.

If we lose our dog the last thing we should worry about is battery life. Part of the reason we built Fi is because we didn’t feel that other smart collars offered enough value to us dog owners. On average, our collars last 3 months between charges. So, it’s another thing you don’t have to worry about.

We understand that you won’t always be the only one looking after your dog. Fi lets you track your pet's GPS location and activity with others. You can add other owners and dog walkers at the touch of a button, and you can choose what they can and can’t do via the app. We give you complete control.

We care about your dog as much as you do. With live agents ready to talk to you whenever you need, we’ll be right by your side for your journey with Fi. If you ever have any questions about your smart collar, we’d be more than happy to answer them.

Coming in two different colors and three different sizes, Fi works for any dog over 20lbs.

The Fi tracker works best when near a bluetooth connected device with the Fi App or the provided charging base. Learn more about what we’re building at:
Updated on
Nov 23, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Financial info and Device or other IDs
This app may collect these data types
Location, Personal info and 7 others
Data is encrypted in transit
You can request that data be deleted
1.63K reviews
October 29, 2022
Great reliability so far. Needs a few key beneficial programming updates to be serious. A map with a line to reference where the dog has been. Especially key areas when lost, showing "Hot Spots". (Just like their competitor Tractive). Needs to update live more than 60+ sec. Animal can move a lot in that time. I can see where my cat is at the current moment (given he doesn't move in that 60 sec). Very accurate gps location. With very occasional "jumping" when he's out the house which is usual.
6 people found this review helpful
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Melissa Csepegi
October 6, 2022
When I got this over a year ago, it was accurate most of the time. No tracker is 100% accurate, but the app performed solidly. Lately, the app has been wildly off, doesn't count steps, doesn't update or track even close to accurately, and actually subtracts steps off of the total randomly. The system really needs to be fixed/updated, because it's quickly becoming useless, and I will no longer recommend it to others in its current state. If anyone at Fi is listening, please fix the issues!
59 people found this review helpful
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Barking Labs, Inc.
October 12, 2022
Hi Melissa! Please contact our support team via We will assist you.
Richard Price
September 13, 2022
Bottom line is the system doesn't work well. App doesn't track well when on a walk so results are Totally off. Collar has issues with sending updates, your dog could get loose and you might be able to narrow them to half a mile, by the time you get to that location they most likely be somewhere completely different. So don't trust this system. I have had FI for 1.5 years.
47 people found this review helpful
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Barking Labs, Inc.
September 13, 2022
Hi Richard! We're really bummed that you're not having a good experience. Please reach out to, our team would love to help you with these issues.