Product review on reviewseen.com
Price: $189.00
(as of Feb 23, 2026 10:18:32 UTC – Details)
Product description
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
4.2 out of 5 stars 652
4.1 out of 5 stars 85
4.0 out of 5 stars 24
4.2 out of 5 stars 652
4.2 out of 5 stars 652
3.4 out of 5 stars 15
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 : 9.09 x 6.69 x 2.01 inches; 2.72 ounces
Item model number : FC3B
Batteries : 1 Nonstandard Battery batteries required. (included)
Date First Available : July 10, 2025
Manufacturer : Fi
ASIN : B0FH82MF55
Best Sellers Rank: #9,578 in Pet Supplies (See Top 100 in Pet Supplies) #7 in Pet Location Trackers
Customer Reviews: 4.1 4.1 out of 5 stars (1,180) 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. 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.

Amazon Customer –
WORTH EVERY PENNY
I recently purchased the Fi Series 3 Smart Dog Collar for my energetic pup, and I couldn’t be more thrilled with the experience! This innovative collar combines GPS tracking with activity monitoring, making it an essential tool for any dog owner who values their pet’s safety and well-being.**Design and Comfort:**The collar is sleek and stylish, available in various colors to suit your dog’s personality. It’s made from durable materials that stand up to the wear and tear of daily dog adventures, and my dog seems comfortable wearing it throughout the day.**GPS Tracking:**The GPS feature is a game changer! I can track my dog’s location in real-time using the accompanying app. The geofencing feature is fantastic, alerting me if my dog wanders beyond a designated safe zone.**Activity Monitoring:**The activity and fitness monitor is another highlight. It tracks my dog’s daily activity levels, encouraging us to engage in more playtime and exercise. The app provides insights into my dog’s activity trends, helping me to keep him healthy and active.**Battery Life:**I was pleasantly surprised by the battery life. With regular use, the collar lasts for several weeks on a single charge, which is impressive for a device with such advanced features. This means less time worrying about charging and more time enjoying walks and play.**App Integration:**The Fi app is intuitive and user-friendly. I appreciate the detailed reports and the ability to set goals for my dog’s activity levels. It’s also easy to navigate, which makes checking in on my dog’s status a breeze.**Conclusion:**Overall, the Fi Series 3 Smart Dog Collar is worth every penny. It’s not just a collar; it’s a comprehensive tool that enhances the safety and health of my beloved pet. If you’re looking for a reliable GPS tracker and activity monitor, I highly recommend giving this collar a try. It’s a must-have for any dog owner!
serenity fabian –
Worth the price!
I love this thing! My dog has been wearing it for 4 months now. I just wanted a tracking collar for my deaf dog for when she sometimes escapes the house/yard and got a lot more than GPS tracking. It tracks her step, scratching, barking, eating, licking, sleeping, drinking, everything! The tracking update is very accurate as well, notifies me the second she leaves the house. It’s not super heavy at all, feels like just a normal collar.My only complaint, the base for this thing always disconnects like once a week. Nothing dramatic happens when it disconnects, just loses battery faster, but a little annoying to keep having to reconnect
M. Wallace –
Amazing battery
Best one out there. A lot smaller than the last one. Definitely recommend. I’ve had no issues with the positioning accuracy or disconnecting. Love the charging base.
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.
Robert H. Mead –
If you dog is less than 40 lbs, consider the Mini…
I like the collar and tracker.The step counter is an effective tool for getting me to walk my buddy religiously. We now aim for an ambitious target and she is very enthusiastic about our long walks. (I am happy for her — and have already dropped a few pounds, myself.) So… gamification of walking is very positive.Accuracy of tracker is OK. The GPS feature shows individual walks, but the accuracy is good to only a few hundred feet. I’m a little worried about how effective my search attempt would be if my buddy runs off. So… accuarcy is OK.Sizing is a little limited. I probably would opt for the “Mini” next time. My buddy is 35lbs and the one-size-fits-all collar is too wide. That suggests that I should take it off inside the house, but then she might accidentally be let out without it. So… sizing is too likited.
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!