Fi New 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 (Blue, X-Small)
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- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
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Learn more about financing & leasing here.
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Saturday, May 23
Recently Viewed
Color: Blue
Size: X-Small
Features
- NEXT-GEN GPS DOG TRACKER: The Fi Series 3+ collar is our most accurate and reliable smart collarfeaturing 2x improved GPS performance from past devices to track your dogs 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 drinkinggiving you a complete picture of your dogs well-being. Review all your dogs 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 anythingfrom 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 dogs 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 documentsall in one place.
Brand: Fi
Connectivity Technology: Cellular, Bluetooth
Supported Application: Fitbit
Specific Uses For Product: Pet Monitoring
Material: Plastic
Connectivity Technology: Cellular, Bluetooth
Supported Application: Fitbit
Specific Uses For Product: Pet Monitoring
Compatible Devices: Personal Computer, Smartphone, Tablet
Battery Capacity: 285 Milliamp Hours
Item Weight: 77 Grams
Enclosure Material: Plastic
Brand: Fi
Built-In Media: Charger, USB Cable
Manufacturer: Fi
UPC: 850064800463
Model Number: FCB3
Mfr Part Number: FCB3
Warranty Description: 1 Year Warranty
Unit Count: 1.0 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, May 23
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Color: Gray
Size: Small
We hike on a farm where Layla can run off leash. I took a different route from our usual and after not seeing her for a short while I started whistling. She didn’t come and the panic began. Without going into all the details of speed walking back to the truck, then back to where I lost her, getting through the gate without letting the cows out and huffing and puffing up a very steep hill while trying to whistle; I found her. We came home, called the neighbor to see which tracking collar he had and ordered the Fi. We have had it for 5 months and it is fantastic. We are in a very rural area but the Fi has never went out of service. The battery lasts for at least a week and she wears it every day. It is rugged and waterproof. Layla is a Vizsla, very active. She runs through woods, fields and creeks and her collar has held up perfectly. It is also interesting to see how far she runs on our walks. I have had to use lost dog mode on several occasions. Her recall has improved tremendously from when she was lost. I think it scared her also. It is very reassuring to be able to start lost dog mode and see exactly where she is at. I am very happy with the quality and performance of the collar.
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Reviewed in the United States on March 30, 2026 by Amazon Customer
Color: Pink
Size: Large
The collar works great! Makes me feel better while traveling or at home that if anything happens I can track my dog. The only thing I do not like about the app is you always have to have your Bluetooth turned on and the location settings set to “always” just to be able to open the app and check things.
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Reviewed in the United States on April 29, 2026 by Steve
Color: Pink
Size: Large
We have an Australian Shepard who is very active. U fortunately our 25 acres doesn’t contain her and she continuously left our property and we would have to go looking for her. I found the Fi Series 3 and decided to give it a try. This is the best solution we could have come up with. Now we can rest in peace knowing that we can always find her. I was not sure this would work in the country but it amazing. We set up a safe zone and we get a notification if she leaves it. She is really fast so she can get a distance away before we see she has left. But now we know where she is headed. Best money I have ever spent…..worth every penny. Great app and so easy to set up and use. Very accurate
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Reviewed in the United States on March 2, 2026 by Sharon L Shanks
Color: Yellow
Size: Medium
Dont buy this unless you're desperate! So many things to mention. First off.. nothing worked the way the instructions indicated. You scan a qr code and a menu screen guides you they the set up. The device that actually tracks your pets location and goes on the collar doors not connect to the collar the way the instructions indicate. It didn't mention you can get stuck trying to do connect it the wing way as there are 2 ways to insert it. There is only one way it connects.. so confusing. Another problem i ran in to was the collar size. If you make a mistake on the size you can't order a collar only. You have to buy a whole new set with GPS tracker. I sized mine correctly but the cooler doesn't fit my pet so be careful. Once you get the collar activated which means getting the base connected to your home Wi-Fi your supposed to be done. My base station would not connect to my wifi So I had to do it manually. Once I was able to get it online... I cannot activate the collar which is required to be touching the base station. After I got everything connected and online and the geofence set. I get alerts saying that the pet has went outside the boundary. Even though the collar is still on the base station charging. Then I get alerts saying that the base station is disconnected. Even though it is connected and the Wi-Fi in the house is still on. So overall I don't like this product. I haven't been able to use it outside of the home because I had to go buy a different collar which is by a third party provider and expensive to be fi compatible.. bottom line is they made a proprietary collar and GPS that is nearly impossible to alter to get it to work with your custom collar. If you have your pet's name or anything else like that on there. I haven't even tried using customer service cuz I've been so frustrated with simply just trying to get this set up. Once I get my replacement collar and I'm able to go drive around to see if my pet is tracking in real time, I'll provide a second review and update.
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Reviewed in the United States on April 22, 2026 by Amazon Investor 53
Color: Pink
Size: X-Small
We moved our feral cat, Tito to our farm but unfortunately she kept running away. We quickly discovered the ring collar tags do not work well in the country without WiFi. I opted to try Fi 3+, suited her up with a pink collar for some peace of mind after moving her back to our home at the beach. Fi works fairly well, but sometimes looses connection when she's outside. I've found if you turn on lost tracking, it quickly drains battery when she's outside. However, it is Interesting to track her adventures out exploring. Sometimes past tracking on app isn't documented and is extremely slow to load. I purchased the standard size Fi 3+ because of the extended battery time. Easy to set up and seems durable to date. Just hope they make some lag time updates that will fix accuracy of locations current and record all past travels. Sometimes it drops off and isn't available.
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Reviewed in the United States on February 10, 2026 by NC Customer
Color: Gray
Size: X-Large
This is the perfect tracker for your dog! It is gps and has signal nearly everywhere! It works from a cell phone tower signal and has its own phone number. The cost is well worth the peace of mind that it provides to keep my Xena safe as possible. It tracks much more than location. It tracks different things such as how many times for eating, drinking, sleeping, and much more…..
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Reviewed in the United States on April 4, 2026 by Melissa C.
Color: Pink
Size: Medium
This is a fantastic product. even though my dog is microchip and she wears a tag I wanted to be able to know exactly where she was and not wait for someone else to find her if something happened. My dog ran out of the fence and it was gone before we even knew she was out. I looked at my app on my phone and knew exactly which address she was at and simply went and got her. It can’t get easier than that. I only have to charge the battery about every other month and then I just forget about it. You just set up the app and put the collar on and you’re done. I just wish the collar was a little thinner because my dog is small but fat.
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Reviewed in the United States on April 28, 2026 by B. Pereira