![Fi New Series 3+ Smart Dog Tracker Collar [12 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, X-Small)](https://m.media-amazon.com/images/I/71-sfQnNQ2L._AC_SL1500_.jpg "Fi New Series 3+ Smart Dog Tracker Collar [12 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, X-Small)")
Fi New Series 3+ Smart Dog Tracker Collar [12 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, X-Small)
$189.00
Price: $189.00
(as of Apr 26, 2026 01:02:06 UTC – Details)
Product description
Fi Series 3+
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
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Customer Reviews
4.1 out of 5 stars 786
3.6 out of 5 stars 116
3.4 out of 5 stars 56
4.1 out of 5 stars 786
4.1 out of 5 stars 786
4.1 out of 5 stars 786
Price
$99.00$99.00
$99.00$99.00
$99.00$99.00
$99.00$99.00
$99.00$99.00
$99.00$99.00
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
Package Dimensions : 9.13 x 6.69 x 1.97 inches; 2.72 ounces
Item model number : FCB3
Batteries : 1 Nonstandard Battery batteries required. (included)
Date First Available : July 10, 2025
Manufacturer : Fi
ASIN : B0FH7SLFCH
Best Sellers Rank: #10,614 in Pet Supplies (See Top 100 in Pet Supplies) #6 in Pet Location Trackers
Customer Reviews: 4.1 4.1 out of 5 stars (1,225) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
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.
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.
6 reviews for Fi New Series 3+ Smart Dog Tracker Collar [12 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, X-Small)
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$189.00
Mary Brown –
Worth it!
Works! I got it to make sure if my dog got lost I could find him … As he is so adorable anyone that found him would want to keep him lol.I’m able to set up a home premeter to notify me when he leaves. It tracks steps and sleep. I find the steps helpful to remind me to get him moving and walk.Never had any issues and had it since Nov.I plan on keeping it as long as I have a dog. Worth the peice of mind.
Racquel Evans –
Extremely important to keep ur dog alive
I love how much this collar allows me to see if or when my dog moves and what kind of movement he does. Keeps track of where he has gone as well. If I can’t keep track of him and he gets lost, I always find him! I love how it keeps asking if the location lines are true or not when we do walk outside of the boundary lines.
Amazon Customer –
Much improved over series 2
We had three series 2 fi collars for a few years. Generally had been quite happy with them and the features/price until two of the collars started to come undone while walking the our dogs. One deteriorated to the point it came loose 4 times on one walk at which point I removed the collars and.sropped using them completely. The problem is that the fi receiver fits in line with the collar so if the attachment comes.loose the collar is no.longer connected, and the dog is now without a leash and without a gps tracker.I found companies that created a pouch or other holder for the gps , that would fit around a normal collar. This meant the gps receive is no.longer a critical link. With that in mind I decided to try upgrading to a fi3 series collar.Initially I was going to upgrade my subscription with a credit , but it actually turned out cheaper and quicker to.get the collar from Amazon.The new collar arrived today , nicely packed and ready to go.Setup of the base and collar weren’t too difficult. I did find it went better if you didn’t put the collar on the base during setup until prompted later. Also, it took a while to connect to my wifi properly. Be patient and it eventually sorts itself out.Have yet to try the tracking outside my safe zone but two things I like already.The attachments to the gps receiver are metal not plastic, and there is a magnetic door that holds things shut. Feels must more robust , and harder to come apart accidentally. Instead of popping out vertically it has to slide out horizontally before it comes loose. I am a little more.comfortable with this design and may skip using the pouches that I planned to.Secondly the led is a little more active and makes itself a little easier to spot due to the motion, not just the pulsing led.Hoping the gps tracking works well when I go on a walk tomorrow. Seems to find the house ok.Curiously it did record 430 steps just setting up and holding the collar. I’m claiming those steps and eating a donut to compensate. :)One thing that surprised me. The blue collar has a pattern on one side and is plain on the other. For some reason the pattern is on the inside when worn and there appears to be no way to flip it over. Indeed the photos on first website show the same, so it appears deliberate. I would jave thought the pattern would look decent showing outwards but maybe that’s just me.
Syndel –
Inaccurate GPS; not reliable for rural areas.
I’ve been exceedingly hopeful about this product for a long time now. When it connects to GPS, it’s helpful for at least getting you in a general range. It does not accurately let you know when your pet has left the safe zone at all. It also does not pinpoint your dog’s location on GPS; it only shows a general location, so you could be 500 to 1000 feet apart, which is a very big distance if you’re in a forest or field without a clear line of sight. It can take 45 minutes to get a notification that your dog has left the safe zone, depending on when it picks it up on GPS. The battery does last a while, but nowhere near the three-month claim. It is sturdy and it does stay on, however. The point of the light I don’t quite understand because it’s not bright enough if you’re looking for them at night. I think it’s just a fancy added feature. The subscription part, where you can see all of the steps that they take, is not really a bonus, the way I purchased it. It was part of a package deal, so I’m not sure if I have to keep it yet. I certainly don’t plan to because it won’t be worth the money for what I’ve gotten out of the product.If you’re looking for something that is going to immediately tell you when the dog leaves, give you a small area, as in less than a third of an acre for a safe zone, and pick up GPS signals in rural areas, you’re going to need to spend a lot more money or find a better product that I may not have found. This is not meant for rural areas or anywhere that has gaps in GPS. You’ll just be hunting for your dog for hours, walking in circles, playing chase, hoping this thing actually leads you somewhere.
Marianne –
Pretty good locator.
Works pretty good aside from the minutes it takes to update. My biggest problem is that this is not a breakaway collar and my Izzy got caught up on an old bolt under an old van on the ranch. She was able to slip the collar but I wonder how long she was stuck. That makes me a bit leery of it. We are wooded with a large boat barn and shop down on the lower property. It took us a good hour to find it because location is a bit delayed. They play rough all day down there in the woods and I never worried about them getting caught up but now I do.
Jose Heredia –
Este producto no sirve fuera de estados unidos, gaste mucho dinero por él, pero la aplicación no tiene cobertura en mi país y trate de regresarlo, pero Amazon no pudo ayudarme y las paqueterías locales se lavaron las manos además de que por parte del vendedor no me proporcionaron un número de guía válido, desafortunadamente tuve que quedármelo, la peor experiencia de compra que he tenido, si eres de México u otro país NO COMPRES este producto!