Fi Series 2 GPS Tracker Smart Dog Collar
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Remember to measure your pet for the paw-fect fit. Step your dog’s collar game up with this Fi Series 2 GPS Tracker Smart Dog Collar! This high-tech collar is designed to track your pup’s activity levels and keep you informed on his whereabouts thanks to the GPS location feature. This durable, waterproof collar features a customizable LED light and has a long battery life with up to three months between charges!
Key Benefits- You can track your dog anytime, anywhere by using the latest cellular and GPS technology.
- You can receive alerts every time your pup escapes, so you can stay on his tail at all times!
- Keep track of your buddy’s activity levels to ensure he’s getting enough exercise.
- You can even compare his activity levels with other dogs in the neighborhood and of the same breed!
- The battery life can last up to 3 months between charges!
Fi Collar, Charging Base, Plug.
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Item Number258325
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LifestageAdult
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Breed SizeLarge Breeds, Giant Breeds
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Closure TypeBuckle
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Collar Width1 inch
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FeaturesGPS
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MaterialPolyester
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CompatibilityGPS
Remove GPS module, hand wash with warm water and detergent.
Size | Neck Size | Collar Width |
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Small | 11.5 - 13.5 inches | 1 inch |
Medium | 13 - 16.5 inches | 1 inch |
Large | 16 - 22.5 inches | 1 inch |
X-Large | 22 - 34.5 inches | 1 inch |
1-Year Limited Warranty.

The Future of Collars is Here
Meet the Fi collar, a GPS and activity tracking collar designed to bring you closer to your dog. This smart collar uses the latest technology to let you know where your best friend is at all times—for his safety and your peace of mind. It also lets you monitor how much exercise he’s getting daily, so you can keep an eye on his fitness and overall health.


GPS Tracking
The Fi collar uses the LTE-M cellular network to let you easily track your dog from your phone. Use it to check his location anytime and anywhere he may be, or switch it to Lost Dog Mode to get real-time location updates in emergency situations. The collar also uses geofence detection and can notify you immediately if your dog escapes the yard.
Activity Monitoring
Track how many steps your pup is getting in each day with activity monitoring you can access from your phone. The app lets you set daily goals for his fitness and see how his activity level stacks up to other Fi collar-wearing pups. Compare his fitness to dogs of the same age or breed or compete in neighborhood leaderboards for fun!


Battery Life
The Fi smart collar lets you go up to 3 months between charges, for more playing and less worrying about battery levels. It connects to your home network to save battery and improve accuracy and uses smart power management to conserve its charge when out of range of WiFi. If your dog ever escapes, those extra few days of battery life can make all the difference.
Designed for the Outdoors
The Fi is made to be waterproof, dirt-proof and adventure-proof, with an armored aluminum faceplate and reinforced internal metal frame to resist bites. It’s compact and lightweight to suit pups of all sizes, with interchangeable collar band options in a variety of sizes, colors and styles. Choose from martingale collars, stylish leather and biothane bands and more.

About Fi Smart Dog Collar
Fi is based in Brooklyn, NY and dedicated to using technology to enhance the dog/human relationship. Millions of dogs are lost in the US every year, and Fi wants to change that. Their collars are designed to help dog parents track their pups’ location for safety and monitor their activity levels for better health. Take your amazing bond with your best friend to the next level and join a thriving community of modern dog parents across the US!

Customer Reviews
83% Recommend
83% of reviewersrecommend this product
You've Already Reviewed This Item
18 Reviews
Showing 1-10 of 18 Reviews
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Fi collar review
By Kari on Jan 9, 2021
Our dog is 50% Staffordshire Terrier and 50% Basset Hound. He is a tracker and will find a scent and follow it right on out of the yard, down the street, and into town at a moments notice. We researched collars and decided to purchase the Fi. It is amazing! We charged it up and downloaded the app onto multiple devices. We programmed on the app where Dexters home is and safe zones for when we go visit family. It even lets you set perimeters in your yard of how far your dog can go before it reports them as missing. This collar uses GPS location and not Bluetooth so if my dog decides to travel from our home and go across the country on a sniff chasing deer it will tell us his entire trip. Not only Our dog is 50% Staffordshire Terrier and 50% Basset Hound. He is a tracker and will find a scent and follow it right on out of the yard, down the street, and into town at a moments notice. We researched collars and decided to purchase the Fi. It is amazing! We charged it up and downloaded the app onto multiple devices. We programmed on the app where Dexters home is and safe zones for when we go visit family. It even lets you set perimeters in your yard of how far your dog can go before it reports them as missing. This collar uses GPS location and not Bluetooth so if my dog decides to travel from our home and go across the country on a sniff chasing deer it will tell us his entire trip. Not only is he chipped, we now have the security of knowing exactly where he is at all times with a view and an address of where he is. If you aren’t sure if you will get service they provide maps for you to see if you will be covered where you are and they use AT&T for their GPS. There is a membership fee but it was reasonable as we are on a tight budget. The battery held its first charge for almost three months before we had to charge it for the first time. The collar is comfortable and lightweight. It is also waterproof and I look forward to the summer when we can go kayaking, swimming, and all of the other activities Dexter likes to do and know that he will be safe to run free like the spirt he is. … more
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Good, but can be great
By CaptBobo on Jan 5, 2021
We've been using this for over a month now, and we really like it. However, it does have some flaws. When in Lost Dog mode, the system updates the location every minute or so. For the most part, this should be ok and gives you a good general idea of a dog's location, but it should be customizable. I understand that the update interval is this way due to preserving battery life, etc... But, the user should have the option to change this to real time mode (or maybe even a few seconds) once they get closer to the location. Secondly, the blinking light mode is pretty bad. We can not see the collar blinking through our dog's fur. When it blinks, it's quite dim. They should make this brighter We've been using this for over a month now, and we really like it. However, it does have some flaws. When in Lost Dog mode, the system updates the location every minute or so. For the most part, this should be ok and gives you a good general idea of a dog's location, but it should be customizable. I understand that the update interval is this way due to preserving battery life, etc... But, the user should have the option to change this to real time mode (or maybe even a few seconds) once they get closer to the location. Secondly, the blinking light mode is pretty bad. We can not see the collar blinking through our dog's fur. When it blinks, it's quite dim. They should make this brighter or maybe have a little beeper instead. Finally, a smaller issue we have is the ability to switch collars. It would be nice for the device to be used with other collars instead. The one it's built with is pretty wide, and looks uncomfortable for smaller dogs. All in all, though, we do really like the collar and would recommend it. … more
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Great Collar!
By Tedsowner1 on Jan 4, 2021
Excellent GPS collar! I have been using the Fi 1 for over a year now and i enjoy it. The responsiveness does have a delay and your results might vary depending on you access to cell towers. Overall, this is a great set and forget insurance policy if you lose your dog. Battery lasts about 2 weeks, charges in a couple hours. My Fi 2 just arrived today. I'll see how much better it is than the Fi 1. If you have the extra money, I would highly recommend.
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Poor Performance- Not Responsive Enough
By Buck on Jan 8, 2021
I was really excited to get this new technology but I would not recommend this collar to anyone. It never alarmed me when my dog left the safe zone. The live map would not update...even on lost dog mode. This system runs off of WiFi then your phone and then GPS. I would rather know where my dog is at versus having a battery that can last 30days. Don’t buy if your dog is a runner. You won’t find him in time.
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Horrible customer service
By Realperson on Jan 11, 2021
Received my collar and it doesn't work where I live, that stinks but so goes life. After 7 or 8 emails in just over a week they told me I was out of my 14 day trial. I pointed out I had a few days left and they won't respond again. Social media department talks to me fine but can't do anything. Don't support this horrible company
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It’s good but..
By Alex on Nov 28, 2020
It’s pricey, and for that you should be able to see your dog’s location history. Unfortunately, you can’t see the whole history unless you pay a fee after a certain amount of time (1 year, 2years). But it’s cool to use lost dog mode and the light on the collar that you can control. I just feel like for $150 you should be able to have a full version of seeing your dog’s location history. It’s a very expensive collar, and for that you should have full perks.
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AWESOME COLLAR!
By Maggie on Nov 24, 2020
This collar in a size XL was a perfect fit for my 70 lb lab mix. It gives me a really great peace of mind that I wouldn’t have otherwise. While I don’t think my pup would ever run away, I wouldn’t ever forgive myself if something were to happen. This collar is easy to set up and use and we love it! #chewyteamrated
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LOVE THIS COLLAR!
By kmc2016 on Nov 19, 2020
I have 2 Fi Series 2 collars for my two labs and I absolutely love them! Battery life is amazing and its such a huge peace of mind that if they ever go missing I can pull them up right in my app and locate them. The collars are waterproof (my dogs are competitive dock divers and they compete in them and play in the ocean). We never go anywhere without our Fi collars! highly recommend. For size reference, my older lab is 23" tall at the shoulders, weighs 71 lbs. and wears a LARGE. My younger lab is 21" at the shoulders, 51 lbs. and wears a MEDIUM.
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Series 1 has flaws - hope this fixes them
By DogOwner123 on Nov 9, 2020
I just got the series 1 a few weeks before this came out. The communication of series 1 is spotty at best. i live in a fairly populated area and it would pick up my dogs walks about every 5-10 minutes so when I look to see where my kids walked the dog it would zig-zag through housing developments instead of on the streets which he was actually walked. Additionally, it doesn't notify me when he leaves the base area for a solid 5 minutes after which defeats the purpose. Just yesterday I was at a soccer field 15 minutes away and my wife left the house to join me with the dog. It wasn't until after they go to the field that I got a notice saying the dog left the house. On top of that, the collar I just got the series 1 a few weeks before this came out. The communication of series 1 is spotty at best. i live in a fairly populated area and it would pick up my dogs walks about every 5-10 minutes so when I look to see where my kids walked the dog it would zig-zag through housing developments instead of on the streets which he was actually walked. Additionally, it doesn't notify me when he leaves the base area for a solid 5 minutes after which defeats the purpose. Just yesterday I was at a soccer field 15 minutes away and my wife left the house to join me with the dog. It wasn't until after they go to the field that I got a notice saying the dog left the house. On top of that, the collar itself loosens as the dog pulls at it so eventually it opens fully and he gets out. I need to constantly monitor the length and given my kids take him for walks sometimes I had to stop using the collar because I can't trust it will be the right size when they take him. They say they fixed some of these issues but beware they never acknowledged there were issues in the first place. … more
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Poor experience of Fi 'smart' collar
By Bentley on Nov 24, 2020
The collar is extremely heavy and not suitable for many dogs - mine refused to wear it, and since I was unable to try him with it as we were isolated - they refused a refund of any kind as I was two weeks late in returning. The tech is also very clunky - with a significant time lapse between movement and the push notification.