Fi Tracker Review

UPDATED Feb. 2021
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Fi is a company that practically reinvented the dog collar by infusing it with numerous modern technologies and focusing primarily on equipping it with enough features to allow all dog owners to locate their pets and prevent them from joining more than 100 million dogs that go missing every year.

The project was started in 2017 by Johnathan Bensamoun and Loren Kirkby and quickly raised 10 million dollars from investors like Lerer Hippeau, Freestyle VC, and RRE Ventures. The company is currently headquartered in Brooklyn and invites everybody to stop by for a free Fi tennis ball.

Keep reading this honest Fi tracker review to learn more about the collar and its capabilities and see if it works for your pets.

fi printscreen homepage

How Fi Tracker Works

Fi tracker comes with a GPS module that tracks your dog 24/7 on the new LTE-M network, which allows you to be aware of his or her movement even when taken out by dog walkers and/or caretakers. Fi tracker is famous for its incredible battery life so you can basically put it on and forget about it for months.

It also allows you to create safe zones and receive notifications when your dog exits the perimeter. Since the collar works perfectly fine in all US states, you will receive instant escape notifications anywhere in the country. You can create as many safe zones as you want, which makes traveling with your pet much safer and easier.

Apart from tracking your dog, Fi tracker can help you keep your pet active and healthy by hitting his or her daily, weekly, and monthly step goal, comparing the score with other dogs, and monitoring activity levels when you are not there.

One of the most prominent features offered by Fi pet tracker is the Lost Dog Mode that switches to live location tracking to help you find your pet as quickly as possible. The Lost Dog Mode also activates the red pulsing LED light on the collar, which makes it easier to spot your pet in low visibility conditions or at night. Once your collar enters the Lost Dog Mode, Fi HQ will immediately be notified and the company’s 24/7 lost dog helpline will be at your disposal.

Fi Tracker Design

The Fi collar features a durable and sturdy design with the tracking module being held in place by a tough nylon band. Note that you should not rely solely on Fi tracker as a link to your dog’s leash even though it is able to handle even the most adventurous of pets. The collar is waterproof and can even withstand salt water. Furthermore, it is chew-proof so there should not be any problems in multi-pet households.

The band comes in yellow and gray, but note that the yellow version does not have an XL size. When it comes to Fi sizing, here is your definitive guide:

  • S – Neck <13” 
  • M – 13.5” – 16.5” 
  • L – 16″ – 22.5” 
  • XL – 22″ – 34.5” 

You should be able to fit two fingers between the collar and your dog’s neck for optimal comfort. In other words, the collar should feel snug but not too tight.
fi pet tracker yellow and grey

If the band gets damaged at any given point, you can replace it by simply unlocking the end links and separating it from the module. If the end links get damaged, you can contact the company’s customer support team at Monday to Friday 10 AM – 5 PM EST.

The Fi collar features an LED indicator light. Understanding different modes will help you use the product to its full potential:

  • Solid blue – Fully charged; 
  • Pulsing blue – Charging; 
  • Pulsing red – “Lost Dog” Mode; 
  • Pulsing green – Activated, restarting, reset, the firmware has recently been updated. 

Fi Tracker Technical Specification

This part of our Fi tracker review will focus on the collar’s technical characteristics and implemented technologies.

LTE-M Network

LTE-M is a low-power cellular network specifically designed for IoT devices. It provides dog owners with ultra-long battery life and extended cellular range.


Apart from using GPS and Wi-Fi, the collar can also utilize low-power Bluetooth connection to communicate with other devices like Fitbits, Airpods, and others.

Battery (Lithium-ion – 520mAh)

As we already mentioned in this Fi tracker review, battery life is one of the most impressive features of this collar. Depending on your usage, you can go up to 3 months without recharging the battery. The battery will last up to 2 months if your dog is constantly outside of your home (Wi-Fi & GPS/cellular mixed mode), up to 3 weeks if you are using GPS without Wi-Fi, and up to 2 days in the Lost Dog Mode (with 1-minute refresh).


The Fi collar is extremely resistant to damage caused by outside influences so if you own multiple pets, they will not be able to chew through each other’s collars. Furthermore, your dog will not be able to damage the module or the band no matter how adventurous he or she is.


Unlike many other tracking collars that are only water-resistant, Fi tracker is completely waterproof and can even withstand salt water without any damage or diminished performance. Its waterproof rating is IP-68, which means you can immerse it in up to 1.5m of water without any negative consequences.

fi tracker in the water


The LTE-M network gives you 20-30% more coverage than your regular 3G/LTE networks. This means Fi will be able to track your pet in areas where 3G trackers simply do not work. Fi covers every state in the US

Fi Tracker App

The Fi app will show you your dog’s location in the primary view the moment you open the app. You can scroll the area by swiping across the map or zoom in/out by pinching and pulling your fingers together or apart. This is especially useful while setting up safe zones.

fi pet tracker smart phone app

The app is easy to use, with the first initial representing your current location and the photo of your dog representing where he or she is located. If you are together, the two icons will attach to each other. The app features the “Locator” and “Lost” buttons that point out your current location/where your dog was last recorded and activate the Lost Dog Mode, respectively.

The bottom of the screen is reserved for your dog’s activity and you can always swipe to view past activities. For more in-depth info, simply tap the steps count and toggle between Day, Week, and Month to track your pet’s progress.

Finally, the app allows you to access Fi’s live chat support during the team’s regular business hours.

Fi Tracker Features

Let us now go over some of the most prominent features provided by the Fi tracker and see what sets it apart from other pet tracking devices.

LTE-M Network

Using LTE-M instead or regular 3G/LTE networks enables Fi tracker to provide you with extended range and track your dog’s activity in areas where traditional pet trackers simply do not work.

Durable Design

The Fi collar comes with a tough nylon band that is completely dog-proof and easy to replace. The main module is also chew-proof and built to withstand even the unruliest of pets.

fi tracker on yellow background

User-Friendly Mobile App

Fi tracker comes with its own app that is very easy to use thanks to its intuitive menus and general lack of unnecessary clutter.

Long-Lasting Battery

Thanks to its low-power network and Bluetooth connectivity, Fi tracker can last up to 3 months, depending on usage.


Fi tracker allows you to set up unlimited safe zones across the US, so you will always receive instant notifications the moment your pet leaves the perimeter.

Global Coverage

The Fi collar works in all the states and even covers some rural areas where regular 3G/LTE trackers cannot establish a viable connection.

Fi Coverage

As we already mentioned in this Fi tracker review, the unit works in any state in the US and can even track your dog in some of the rural areas that leave 3G/LTE trackers powerless and useless. However, you still need Internet access in order to view the readings on your Fi app.

How Much Does Fi Tracker Cost?

Fi tracker costs $149 and includes: 

  • Fi module 
  • Fi collar band (additional bands cost $29) 
  • Fi base 
  • USB charging cable 
  • Fi USB power adapter 

After purchasing the Fi tracker, you can also opt for one of the available subscription plans:

  • 1 year – $99 
  • 2 years – $186 
  • 3 years – $248 
fi pet tracker gray in the box

We should note that the collar is basically useless without a subscription since it will stop tracking your dog’s location the moment he or she leaves the Wi-Fi range of the home base. In other words, if you want to unlock GPS tracking, going with one of the subscription plans is a must. The Lost Dog Mode and live agent support are also only available to premium customers.

Once you purchase your Fi collar, you have a 30-day trial period during which you can return it for a full refund. The collar also comes with a full 1-year warranty.

Fi Pros & Cons

Knowing the biggest strenghts and weaknesses of Fi tracker pet tracker can help you decide if it is the right pet tracker for your furry friend. Here is a quick overview of its pros and cons.

  • LTE-M network 
  • Durable chew-proof design 
  • IP-68 waterproof 
  • Bluetooth and Wi-Fi connectivity 
  • GPS tracking 
  • Geo-fencing 
  • Global coverage 
  • Battery life up to 3 months 
  • Budget-friendly  
  • 30-day money-back guarantee 
  • 1-year warranty 


  • Requires a subscription 
  • No 1-month subscription option 

Bottom Line

Fi tracker is a modern pet tracker primarily designed to find lost dogs and monitor their location, activity, and health on a regular basis. It allows you to set up safe zones and receive instant notifications when your pet leaves the predefined perimeter. The home base enables it to utilize Wi-Fi instead of GPS while your dog is in range in order to save battery. Speaking of battery, Fi tracker has one of the most impressive batteries on the market that can last for up to 3 months, depending on usage.

On the other hand, the collar is pretty much useless if you do not purchase one of the available subscription plans. Furthermore, the shortest plan includes a 1-year subscription so you do not have the option of going month-to-month and opting out if you so choose.

Bottom line, Fi tracker is an excellent pet tracker that will monitor your dog’s location and activity pretty much anywhere in the US with the only downside being that you have to purchase a subscription.

User Reviews (15)

Fi Tracker customer rating based on 15 user reviews.

The Fi Tracker reviews listed below reflect the opinions and experiences of real users and are in no way influenced by the company reviewed here. Before publishing each review, our team checks whether it was submitted by an actual user in an effort to prevent false or spammy reviews.

  1. Diane | January 25, 2021

    I provided a review the other day but need to add this to my issues. Today we took a walk for more than a mile, turned around and walked the same path back to the car. The tracker identified the start and end points for the trip but ignored the return. So I got a calculation that reflected only half the trip. The more I use and pay attention to the data the more I find the tracker is irrelevant.

  2. Diane | January 23, 2021

    I have found the collar to be of little value. We can go on a walk but the walk doesn’t show up in the stats. Instead it just tells me the dog is “near” an address. When we are traveling in the car the app often recognizes this as a walk. (Not for the entire trip; just for the same 3/4 mi segment leaving or returning to the house. ) The dog separated from me while walking in the woods the other day and the app didn’t even show that we had left home, so I was not able to track her. Have not been able to get any decent advice from customer service.

  3. Steve | January 21, 2021

    I had a similar experience with their poor customer service as reported by this reviewer. Shipment was delayed. I asked for cancellation and refund but was refused. Do not buy from this vendor. They will leave you hanging.

  4. Ron Gibson | January 21, 2021

    I have purchase and used for only 3 weeks before it went missing in the woods near my home. After searching for a couple days I contacted fi for some help. After several days I was told about an app nRF to help locate the collar. Not knowing how the app works it took a couple more days by that time the battery was to low to find.

    My experience while I had the collar was great but the time I had made the cost of the collar to much to give it another try because I not sure why it came off the dog.

    A tracking device you can’t find is no good.

    Very disappointed customer

  5. Sandi Walters | January 16, 2021

    I am so very happy I discovered the Fi collar! My dogs have a fenced yard but sometimes sneak out from an opened gate. They have literally gone in every direction when they leave and I have spent literally hours searching for them. I live in the country and they think running after deer is great fun. I also spent hours researching gps collars. I actually bought another one which failed to mention you must have a 2g subscription, a 3, 4, or 5g won’t work. Most of the collars I researched also had very short battery life. After seeking recommendations in a FB group I discovered FI. What a relief!!
    For starters, it was pretty easy to set up, even for me who am not good at tech stuff. We do not have great signal here so I was a little worried. Yesterday it was put to test when the dogs took off. It worked amazingly, gave me addresses where they were and a map. I had them back in less than 10 minutes- the previous time before FI took 6 anxious hours. Our dog was stolen once before so that is an additional concern. I have my neighbors added as “dog walkers” and they also received the alert that the dogs were out. After 3 weeks of use the battery still has 37% charge left. I could not be happier with this product. No, it will not prevent your dog from being hit by a car. Ideally, my dogs would not get loose to begin with but the Australian cattle dog is a master at finding opportunities even though they have 2 acres to roam. I do not think the cost is bad- some of the collars I looked at were around $900 and still had bad reviews. Also, I know I would forget to charge the collar every night so the battery life is important to me. I would totally recommend the FI 2 collar. I have not had to deal with customer service so I can’t speak to that.

  6. Lisa | December 4, 2020

    In my many years of purchasing items online, I can honestly say that I have never experienced such dismissive and disrespectful customer service. As a new owner of a sweet but nervous shelter husky, I was keen to get a tracking collar as she tends to bolt at times. I quickly learned, however, that this company seems to prioritize sales at the expense of customer service. Although I paid for expedited two-day delivery, since I was leaving with my dog on a trip, I received an e-mail several days later that my collar would not be shipped for another 3 weeks. I bought the collar originally so I could safely take her with me on the trip. When I tried to get in touch with customer service, my only option was the chat feature. When I asked for a call back, they refused and said that any issues I had could be dealt with through chat. They neither refunded my purchase not my expedited shipping cost. I was truly disappointed with the way I was treated.

    • Steve | January 21, 2021

      I had a similar experience with their poor customer service as reported by this reviewer. Shipment was delayed. I asked for cancellation and refund but was refused. Do not buy from this vendor. They will leave you hanging.

  7. Larry Heyl | December 3, 2020

    Serious limitation if you live/play near areas without cell phone coverage. While the collar will supposedly track your dogs location via GPS, if your dog enters an area with no cell coverage (think rural or mountainous areas), it cannot communicate to you, or Fi servers, the tracking of your pet.

    I live in an mountainous area of North Carolina. There are many areas with good cell coverage, but an equal amount of areas where cell coverage is nonexistent or very spotty. If my dog enters such an area, the last known position (that has cell coverage) could very well be the last notification I would get.

    If you live in larger urban or suburban areas this may not be problematic to you, but for me it is a deal breaker.

  8. Brian Carter | November 19, 2020

    The version 1 is seriously defective. It has a lot of tracking issues but the biggest problem is the modules case. We have 3 collars & all 3 cases have cracked or worn at the collar connections. All 3 dogs collars have fallen off.

    The worst part is the customer service. It’s a hassle to get them replaced and they know it’s an issue because in version 2 it has an all metal frame in the case.
    The Zack asked if I wanted to have them deactivate the collars before the replacements arrives. Why would you do that? It makes no sense. The fact that they can deactivate a device you paid for & service you paid for is very disconcerting.

    You could lose your dog because it got deactivated by mistake. The trackers would be great but there’s just too many issues. One dog has already been hurt due to defects in the product.

    The worst part is even though you just bought a defective version 1 right before the second version came out they won’t exchange it. You have to but the collar all over again because they sold a un-tested product.

  9. Jill Scott | November 17, 2020

    There were some things I liked about this collar but unfortunately, the main point of the collar is to track my dog. On that front- the collar never worked. The service was spotty, even in well- covered network areas. The information I received on locations was truncated. In other words. Saying my dog is on Main St. without a town isn’t helpful. Lastly, the notifications , when they came, were almost always late.

    I liked the design but sadly, it never worked. The annual subscription doesn’t get prorated when the device doesn’t work. I would not recommend.

  10. Kate | November 1, 2020

    This collar snapped in half after just 4 months of use and keeping it in good condition. Our 7 month old, 25 pound puppy broke free in the west village in Manhattan and ran into the west side highway where she was hit by a car. Do not buy this product if you want to keep your dog safe. It should not be depended on.

    • Carolyn McInerney | November 5, 2020

      Collar broke off my 30lb dog after 4 months. He went missing for over four hours at night and it was only by a miracle that we found him but it was right next to a busy road and he could have easily been injured or killed. Customer service refuses to send the newer stronger model as a replacement which I think it the least they could do in this situation. So disappointed.

  11. Brendan | October 29, 2020

    Not sure what the other reviews are about. The Fi Collar has worked perfectly for my family and our pup. We have a husky who loves to wander and has (somehow) gotten out of our backyard 3 times now since we got the collar. Each time, we’ve had her back within 20 minutes. The peace of mind is such a difference maker. Can’t recommend enough.

    • Shannon Allen | December 8, 2020

      I was so excited to get this collar. I don’t know if it’s good or not. I ordered it 10 days ago and it has yet to ship. It says on the website shops the next business day of ordered before 3 pm. We aren’t buying this because we want a ridiculously expensive collar. We want it to protect our dogs. Over two weeks to get a collar that’s supposed to ship the next day. Yeah I already don’t like this company.

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