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Fi

New Fi 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 (Yellow, Large)

  • Based on 993 reviews
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$189.00 Why this price?
New Year Deal · 10% off was $209.00

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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jan 8
Order within 14 hours and 39 minutes
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Color: Yellow


Size: Large


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. Its 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 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.

Description

Fi Series 3+ is the connected collar that provides continuous GPS tracking of your dog’s location (with no maximum range, unlike AirTags and Bluetooth). It delivers live, 24/7 coverage, instant Escape Alerts, and a dedicated Lost Dog Mode for reliable safety. Beyond location, Fi tracks steps, activity, and sleep, using machine learning to translate raw data into meaningful health insights. The device is built into a stainless-steel frame with IP68 and IP66K water resistance, an integrated LED light, and a battery life of up to three months per charge. Owners can also share access with family or caretakers for real-time monitoring. Fi Series 3+ combines durable hardware with intelligent tracking to keep dogs safe and give owners essential visibility.

Brand: Fi


Connectivity Technology: RF


Supported Application: Apple Watch, iOS


Specific Uses For Product: Pet Monitoring


Included Components: Charger, USB Cable


Package Dimensions ‏ : ‎ 9.13 x 6.69 x 1.93 inches; 2.72 ounces


Item model number ‏ : ‎ FCB3


Batteries ‏ : ‎ 1 Nonstandard Battery batteries required. (included)


Date First Available ‏ : ‎ July 10, 2025


Item Weight: 2.72 ounces


Manufacturer: Fi


Item model number: FCB3


Batteries: 1 Nonstandard Battery batteries required. (included)


Date First Available: July 10, 2025


Item Package Dimensions L x W x H: 9.13 x 6.69 x 1.93 inches


Item Weight: 77 Grams


Brand Name: Fi


Target Audience Keyword: pets


Warranty Description: 1 Year Warranty


Model Name: Fi Series 3


Color: Yellow


Size: Large


Number of Items: 1


Included Components: Charger, USB Cable


Specific Uses for Product: Pet Monitoring


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jan 8

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Definitely Fi Over Others
Review Image by iMe iMe
My yorkie has used two generations of Fi collars and Whistle before that. Had to purchase another for my new frise mix who’s a bit loony. Love Fi because the battery goes on for weeks, there’s lots of third party collar options out there, the LED is awesome at night, and it doesn’t look like something added to a collar as much as other brands do or adding an AirTag does. The Fi was a life saver when my yorkie was younger and ran off after squirrels; but luckily learned to listen and to return home by him self; but still love the collar because of the fitness tracking. I recently had an AirTag on my frise mix; which worked most of the time; but the Fi is just more reliable and as already mentioned - love the added LED light when walking the dogs at night. It’s not a strong light that’s meant to replace a flashlight; but it’s more to know where they are, help people spot them, and hopefully avoid bicycles or even cars from hitting them. As a bonus - there’s an option to choose from a few light colors. If one of the doggies go missing, the Fi can be put into lost mode, which causes the light to flash red (so I don’t like using the red light to avoid confusion if others know about the collar). The Fi collar is definitely worth it if you worry about your dog running off and/or their daily workout. There is somewhat of a social network built into the app where you can post and other like other pics of dogs and connect with other dog owners; but I don’t use it much and the app isn’t built around a social network which I’m thankful for. I will agree that pricing can be high compared to just using an AirTag and/or options from some carriers that offer similar trackers now; but bundling for a year or two seem to help reduce the cost (although it has to be paid upfront at once). …maybe Fi should consider allowing people to use those new financing options that allow for 4-bi-weekly payments interest free (just a suggestion). I also do wish the collar could play a sound when in lost mode; but at the same time I can see that causing some dogs to panic and God forbid, possibly run into traffic or get injured somehow. Anyways - love the collars and definitely look into the third part Sexy Dog Beast collars if you want something more premium and quality made for your furry friend. ... show more
Reviewed in the United States on July 16, 2024 by iMe iMe
    • LIFE saver ⭐️⭐️⭐️⭐️⭐️
Set up was extremely easy. I like the diversity in mapping out your safe zone. The charger is really neat. Just like a cordless iPhone charger! Just set it down and charge. I have a 60lb American bulldog and the Large fits her perfect. Edit to OG post: My senior dog has dementia and likes to wander sometimes. I love the app to be able to see her sleeping habits, when she’s most active, and of course her location. The battery life is amazing. I swear I can go a week or more with out charging. That is IMPRESSIVE. This thing literally saved my dog’s life. One day I got a text AND app notification that she had left home. I pulled over and zoomed in on the map and saw her and a body of water. I instantly called my mom that lives a mile down the road to go and get her because I was about 10 minutes away. You're able to add an emergency contact and it will share the dog’s location as well as alert them when they’ve left home so you’ve always got a backup person. I did that and she was able to find her easily. By the time I was almost home my mom had called and said she had to jump IN THE POND and get her because she was bobbing up and down. She said if she wouldn’t have gotten there when she did then she definitely would have drowned. OBVIOUSLY IM GIVING A FIVE STAR REVIEW. This is an amazing price for this collar. I also decided to get a “shock” collar for her too. The one I purchased was $600 and isn’t worth that much money at all. I WOULD pay $600 for the Fi collar. If your dog likes to venture out, GET THIS. It could save their life 😊 ... show more
Reviewed in the United States on March 2, 2025 by Hailes
    • Excellent performance-Good gift for dog owners-It WORKS!
Bought as a gift for a friend whose dog got loose and made it home the next day. This collar's system has more than once since it's gifting helped the owner to retrieve his 10 year old dog. The dog did not normally "wander" but when a second, younger dog joined the family, it began. The ability to draw "home area" in the app saves the battery by not checking in as much (or so it seems) and the charging cradle makes the recharging easy for my friend. It appears you can add cradles if necessary to expand home reach, but check with the manufacturer on that. A great gift for any dog owner where there's a chance the dog may run.....notifications so far have been FAST, and I'd recommend it! There are many collars out there that do similar things, but when comparing recently with strangers who had a different brand, they liked the fact this one had more options on the App and that it seems to pinpoint more exactly than most. Peace of mind for dog owners for sure. ... show more
Reviewed in the United States on September 20, 2025 by W. RADIO
    • Great Collar
Color: Yellow Size: Large
It is a great collar and has helped us find our Husky when she escapes the yard. It does tend to give false escapes from time to time. Overall it is awesome and puts our minds at ease.
Reviewed in the United States on October 26, 2025 by Amazon Customer
    • Best Tracker Ever!!!
Review Image by Shane Schofield Shane Schofield
Review Image by Shane Schofield Shane Schofield
My beagle, Daisy, went on an adventure one day and she had a collar equipped with an AirTag. Problem is AirTags don’t work unless you’re within 200 feet of the dog. At least not out in the country. I was recommended this collar from my vet. On her next adventure, we knew exactly where she was. It was dark. I opened up the app and remotely turned on the collar light and set it to bright hot pink. She couldn’t hide at that point. I’ve also enjoyed seeing how much activity she’s had during the day, so that come walk time in the evening, we don’t overdo it. She’s an older beagle so I don’t want to stress her joints. ... show more
Reviewed in the United States on December 9, 2025 by Shane Schofield Shane Schofield

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