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The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Fi Series 3+ Merchant Video


Fi GPS Trackers
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Customer Reviews
4.1 out of 5 stars 1,140
3.8 out of 5 stars 64
3.0 out of 5 stars 2
4.1 out of 5 stars 1,140
4.1 out of 5 stars 1,140
4.1 out of 5 stars 1,140
Price
$189.00$189.00
$189.00$189.00
$189.00$189.00
$189.00$189.00
$189.00$189.00
$189.00$189.00
Location
GPS & LTE tracking
GPS & LTE tracking
GPS & LTE tracking
GPS & LTE tracking
GPS & LTE tracking
GPS & LTE tracking
Battery life
Up to 3 months battery life
Up to 6 weeks battery life
Up to 6 weeks battery life
Up to 3 months battery life
Up to 3 months battery life
Up to 3 months battery life
Charging
Wireless charging base
Easy USB-C charging
Easy USB-C charging
Wireless charging base
Wireless charging base
Wireless charging base
Hardware
Customizable night light
0.56 oz
0.56 oz
Customizable night light
Customizable night light
Customizable night light
Waterproof
Waterproof (IP68/66K)
Waterproof (IP68)
Waterproof (IP68)
Waterproof (IP68/66K)
Waterproof (IP68/66K)
Waterproof (IP68/66K)
Product dimension
50.5 x 30.5x 11.5mm (L xWx D)
42 x 30 x 12.5mm (L x W x D)
42 x 30 x 12.5mm (L x W x D)
50.5 x 30.5x 11.5mm (L xWx D)
50.5 x 30.5x 11.5mm (L xWx D)
50.5 x 30.5x 11.5mm (L xWx D)
Health
AI-analyzed behavior tracking
AI-analyzed behavior tracking
Coming soon to Fi Mini Cats
AI-analyzed behavior tracking
AI-analyzed behavior tracking
AI-analyzed behavior tracking
Collar fits on
Only Fi-affiliated Maker Bands
Most Collars and Harnesses
Most Collars and Harnesses
Only Fi-affiliated Maker Bands
Only Fi-affiliated Maker Bands
Only Fi-affiliated Maker Bands
Apple Watch
Location updates on your wrist
Coming soon to Fi Mini Dogs
Coming soon to Fi Mini Cats
Location updates on your wrist
Location updates on your wrist
Location updates on your wrist
Made for
Designed for all dogs who roam
Ideal for puppies & small dogs
Ideal for cats
Designed for all dogs who roam
Designed for all dogs who roam
Designed for all dogs who roam



NEXT-GEN GPS DOG TRACKER: The Fi Series 3+ collar is our most accurate and reliable smart collar—featuring 2x improved GPS performance from past devices to track your dog’s real-time location, nationwide, with no range limits using the Fi app. It’s the perfect Christmas dog collar for dog moms and dog dads.
ESCAPE ALERTS: Custom virtual fences use the Fi app to alert you the instant your dog leaves a safe zone. If your dog escapes, get real-time notifications from your GPS dog tracker every few seconds as your dog roams.
AI-POWERED HEALTH + BEHAVIOR TRACKING: The first smart dog tracking collar to detect activity, rest, barking, licking, scratching, eating, and drinking—giving you a complete picture of your dog’s well-being. Review all your dog’s health and behavior data right in the Fi app.
APPLE WATCH INTEGRATION + ANDROID & IPHONE COMPATIBLE: View live location, activity, and Lost Mode from your Apple Watch. Plus, ask the built-in AI Companion anything—from behavior questions to care tips from your smartphone. This dog tracker delivers personalized reminders for vet visits, vaccines, and more through the Fi app.
SMART VET RECORDS: Never lose track of your dog’s medical history. Add vet receipts, pet insurance, vaccine records, training certificates, and other important health documents in the Fi app to help organize, summarize, and store the documents—all in one place.
7 reviews for New Fi Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Pink, Small)
Add a review
$99.00
Dan –
Surprised my Frenchie needed the Medium Size, but great quality!!
Just bought the Medium size for my 17 lb Frenchie. I was adopting and had to order a collar without having my dog available for measurements. I originally thought either the XS or S would fit my dog, but the S (10.5 – 13” neck size) was too tight. I was surprised that I ended up returning the S and had to buy the Medium.Seems like a quality collar, my trainer uses Fi collars with GPS on the dogs she is training. Now that I’ve used the collar for a couple of weeks I can appreciate the elegant design and very high quality and functionality of this collar. This is expensive, but a great value and great piece of mind knowing the gps would help me track down my girl if she gets lost. I would buy this again in a heartbeat & i thoroughly recommend!!
stephen reiter –
Great and accurate
Awesome color, location is accurate and battery life is pretty good. Very similar to a human Fitbit the way it monitors steps and rest.
Kristen –
If You Love Your Dog, Get This Collar
This collar is fantastic. It is the same size as any regular collar and the tracking device is not bulky at all. Great range of colors although I chose the grey and the collar holds up well. I have had it for over a year and it has come in handy on the few occasions my dog got out and took himself for walks. One time I found him about 2 miles away! I never would have found him that time unless he came back in his own. I can’t say enough good things about this collar. It is easy to setup and accurate with tracking.
Storied Furniture –
8 Minutes, from Alert to back home safely! Best purchase ever!
Why did you pick this product vs others?:TAKE MY MONEY! Today, from moment of alert, to back home safely, 8 MINUTES! He was 1/2 mile away.My Houdini dog searches for ways to escape the property. He checks to see if I’m watching. If I am, he stops, if he thinks I’m “not”, he continues to search for a weak spot. Today, I went to the bathroom while he was doing the same, so I thought. To my chagrin, he woke up with a jailbreak on his mind, and a solid plan. To be clear, these are his adventures and my nightmares. He is a well pampered dog in a pack of 3. His best friend is a Belgium Maligator/GermanSheppard mix, his best escape buddy is a Yellow Lab, and he is a Border Collie/Golden Retriever mix. He could do my taxes if he had an opposable thumb! He is spoiled rotten, all the toys and play time he wants and a huge yard, 1/3 acre to play in and tear up, dig till his heart is content. It’s fenced to 5ft high. It’s a great life, and he will always come back… when he is tired, and I’m freaked out and scared. Usually 6-8hrs later. It would be different if we lived in a rural area, but we live between a super busy 4 lane road, and a lake, in central Florida. Road = trucks, Lake = gator snack given the right opportunity. Last time he escaped, I found him after hours of searching, with ZERO help from the AirPod. That’s when I learned he needed to be 200ft from an apple Bluetooth source to help. Waste of money. Lesson learned, I looked for a real time, or close to it, GPS tracker that was not bulky, that I could keep on the collar full time, didn’t draw the attention of the other dogs to bite at and chew off. Water resistent, durable and didn’t rely on Bluetooth or WiFi, to pick up a signal. F3 was it. I have one for every dog. This time, 8 minutes from alert to home. Gladly pay for the peace of mind. Just knowing which way to go is a huge help! Lots of ways a dog can choose. This makes my life easier, my dogs safer. 100% worth every penny.
LJ –
So many benefits and things to track
LoVE the options to track not only my pups location, but his steps, his sleep and set up safe zones for multiple locations. This little tracker holds a charge for weeks and is slim and great quality band.
Not Donald Trump –
Get multiple bases for larger property/larger than 200 ft
This review is for people with larger property. We live on 5 acres and got the collar because one dog kept digging under the fence to escape (a problem we are actively fixing but want the peace of mind to know shes in the yard at least).After purchasing and using the collar, we got an email explaining the base and that you may need multiple for larger areas. This checks out because sometimes when shes at the edge of the self-made “safe zone”, it says she is actually right next to the charging base. This can be resolved by going into Lost Mode and getting a direct location although it does use more battery and takes a minute or two to work. If you are a paranoid pet parent, this may be a problem for you.However, when its working (it works as intended but I understand it isn’t designed for 5 acres, so it doesn’t fully work for us if that makes sense) it does the job well. It does an exact location match.One thing I want to mention is that you may want to set your safe zone a little smaller if your dog is an escape artist. The app will tell you when your dog is out but it will take a few minutes to do so, when they do escape. For example, we set ours a few feet from our fencing because we know if shes near it, shes most likely plotting how to get out, and I want to be notified beforehand that she is even thinking about it.The other things like tracking drinking, barking, etc seem decently accurate but because that wasnt a concern nor reason I bought this collar, I truly do not have a proper review for it. But as I said I do believe its fairly accurate. Again, we live on 5 acres and its suggested to get multiple bases because its large property so some activities she does are not logged.Overall I am very happy with this purchase. The battery lasts a long time. It will drain faster with lost dog mode but otherwise it is sturdy. I do think it lived up to its promises and I would purchase it again for my second dog if he needed it.
Tyler –
AAA+ PRODUCT. Love the accuracy!
Totally in love with this product!!!! I love how accurate and informed that it keeps me. AAA! Purchase.