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Fi

Fi Series 3 Smart Dog Collar - GPS Dog Tracker and Activity & Fitness Monitor, Waterproof, LED Light, Escape Alerts, Nationwide Coverage [Free 6 Month Membership] (Gray, Medium)

  • Based on 289 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Jun 18
Order within 11 hours and 34 minutes
Available payment plans shown during checkout

Size: Medium


Color: Gray


Features

  • THE WORLDS MOST ADVANCED DOG COLLAR Track your dogs live location, activity, and sleep with your Series 3 device, collar, and Fi Membership.
  • LIVE, ALWAYS-ON GPS TRACKING Precision GPS tracking, works nationwide with no maximum range (unlike AirTags, which have a 200ft radius) and 24/7 service.
  • ESCAPE ALERTS Lost Dog Mode is triggered when your dog leaves a certain area, so you always know where they are and save valuable time if they get out.
  • HEALTH + ACTIVITY INSIGHTS Your dog's valuable health data, in your hands, Fi tracks and puts activity, sleep, and behavior into a context you can understand. App available on iOS and Android.
  • DURABLE, DOG-FORWARD DESIGN Sleek, stainless steel profile, 400-lb tug resistance, and IP68 and IP66K waterproof. Its also easy to remove your tracking device from the collar to swap bands.
  • UNBEATABLE BATTERY Fi delivers up to 3-months of battery life on a single charge with included wireless charging base.
  • 6 MONTH MEMBERSHIP INCLUDED Your purchase includes 6 months of Fi Membership, which comes with the collar band (and size) of your choice, and 7 days a week customer service via chat or phone. Your membership will be automatically activated when you turn on and set up your collar.

Connectivity Technology: Bluetooth


Wireless Communication Standard: 802.11ac


Battery Cell Composition: Lithium Polymer


GPS: Built-in GPS


Shape: Rectangular


Brand: Fi


Model Name: Fi Series 3


Color: Gray


Age Range (Description): Adult


Compatible Devices: Smartphone


Package Dimensions ‏ : ‎ 9.13 x 6.85 x 2.05 inches; 12.63 ounces


Item model number ‏ : ‎ FC3


Batteries ‏ : ‎ 1 Lithium Polymer batteries required. (included)


Date First Available ‏ : ‎ May 20, 2024


Manufacturer ‏ : ‎ Fi


Country of Origin ‏ : ‎ USA


Best Sellers Rank: #4,599 in Pet Supplies (See Top 100 in Pet Supplies) #3 in Pet Trackers


#3 in Pet Trackers:


Customer Reviews: 4.2 4.2 out of 5 stars 289 ratings


Item Weight: 12.6 ounces


Manufacturer: Fi


Country of Origin: USA


Item model number: FC3


Batteries: 1 Lithium Polymer batteries required. (included)


Date First Available: May 20, 2024


Item Package Dimensions L x W x H: 9.13 x 6.85 x 2.05 inches


Brand Name: Fi


Target Audience Keyword: pets


Directions: Adults


Warranty Description: 1 Year Warranty


Model Name: Fi Series 3


Color: Gray


Size: Medium


Age Range Description: Adult


Included Components: USB-C Cable, Charging Base, Smart Collar


Specific Uses for Product: Active, Outdoor, Behavior, Indoor, Weight


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 18

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.

Top Amazon Reviews


  • Great GPS tracking no matter how far!
Size: Large Color: Blue
Purchased this collar to keep track of my Irish Wolfhound on two acres that isn't fenced in. Using Fi, i was able to setup a safe zone and the gps was spot on with keeping track of him. I set the safe zone smaller than the property and whenever he crosses the line, i use his training collar to notify him that he's out of bounds. He now knows where he can go and can get plenty of exercise. Not to mention, when the dogsitter takes him to the park, it shows up on the app where they are, even while she is driving. Awesome priduct! I'm hooked! ... show more
Reviewed in the United States on May 7, 2025 by TedBro

  • Worth It!
Size: Large Color: Blue
Every day I see local posts from people desperately trying to locate their lost dog. My dog doesn't have a habit of getting out but I am sleeping soundly at night knowing that if something were to happen, I will be able to recover him quickly instead of tossing and turning with regret. After a month of use, I have not experienced any issues with battery life, false alerts, or any of the other negatives that I read about prior to purchasing. When we leave the house, I receive a notification on my phone immediately and location pings have been very accurate. I also like that there is a setting to test lost dog mode to ensure that the device is functioning as intended. ... show more
Reviewed in the United States on April 20, 2025 by Amanda

  • Fi is worth it!
Size: Medium Color: Blue
Fi has been awesome. We originally purchased this because we were going to Big Bear and we were worried he might get a little too excited and run off, so we wanted to be able to track him (Oliver, our 1 yr old Bedlington Terrier). That didn't happen - but now we love the walking and steps tracking, and even the social aspects. Battery life has been great and I love how we can add other people since he gets walked by others while we are at work or otherwise unavailable. So I highly recommend - even if it is for peace of mind because if you get a little OCD and worry whether you shut the door hard enough or not, you'll know if your furball exits their safe zone! ... show more
Reviewed in the United States on April 19, 2025 by Chase Chase

  • I use this for my 10.5lb outdoor/indoor cat.
Size: X-Small Color: Blue
It took a bit of trouble shooting at first to get the safe zone working properly. It's still not perfect and it's delayed some but it's close. The customer service people have been very helpful and great to chat with and help you understand whatever questions you have. I got the extra small. Im using this with my cat. He is 10.5lbs. I can't really see how a very small dog or toy breed would do with this. Dogs necks are longer but my cat is twice the size and it's enough that I take it off him when he comes in and we put his regular collar back on. Not the most comfortable collar on that small of a pet. It would be helpful if the collar wasn't so wide. The GPS is flat and thin which was one of the top reasons I bought it. The weight and design is better than other GPS collars. The distance we've gone so far has been 7 miles from the base and it's still working perfectly fine. It knew we drove to the vet and the location was accurate. The battery lasts a very long time. I charge it when it's at 80%. I haven't let it go beyond that but it takes over a week to use that 20%. I bought the one that tracks steps, sleep, and walks. There is a difference between the more expensive one. The other one has more health information. This one was suitable for our needs. Not perfect but better than any of the other options out there. I will continue past the free membership period. ... show more
Reviewed in the United States on April 24, 2025 by Amazon Customer

  • Worth the money
Size: Medium Color: Gray
I bought this primarily to tack my pup's location of he were to get loose, the tracking in not spot on but close enough for me to find my lost dog if he were to get out. I find it beneficial that it gives me a round about estimate of his steps. The battery last a good while, I change the collar every two weeks just to ensure a good charge. I will definitely extend the subscription. ... show more
Reviewed in the United States on May 3, 2025 by @justkoolrayray75

  • Great Product
Size: Large Color: Blue
We ordered 2 FI collars for our pups. The collars were super easy to setup, adding to the app was straight forward. So far we love the ability to actually track on the app. Definitely recommended, much better option that a few of the other “trackers” we have tried.
Reviewed in the United States on May 17, 2025 by chris

  • Not the best. Hit or miss. WIFI effects dependability
Size: Medium Color: Pink
The safe zone premier will extend to your WiFi reach- no matter where you set the safe zone perimeters. If you set a safe zone and your WiFi reaches further than the safe zone you set it WILL NOT alert you that the dog is outside the safe zone: I had to manually set the base and the safe zone because the system was showing my location as somewhere else. Customer service was easy to contact and very knowledgeable. It was co Vermont that allegedly of a dog is lost/stolen and inside a home or vehicle it may not be eat trackable- as it would be outsides Halo collar is much more expensive but from the people I know with it, it’s much more dependable. The collar itself is sleek, very well made, and great quality. I got the Medium for a 20lb French Bulldog. Fits perfect. ... show more
Reviewed in the United States on March 8, 2025 by Emberwick Ranch Texas

  • perfect for the escape artist
Size: Small Color: Pink
Works as stated, fits dog great and is strong. My dog is not very good on a leash, so she pulls really hard. This collar is holding up just fine. Cons: You are supposed to leave the app open all the time. I bought this and a small tablet to put it on. I assigned it to guest WiFi so it's not inside the secure network and can run constantly. The charge on the collar has lasted 4 weeks with 3 or four hours per day away from home and the base station. It does chew through power quickly in lost dog mode, so I won't let it get below 25% charge. ... show more
Reviewed in the United States on May 11, 2025 by Amazon Customer

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