![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 (Blue, X-Small)](https://m.media-amazon.com/images/I/61IqRZbeHrL.jpg)








🐾 Stay connected, stay ahead—because your dog deserves the smartest collar on the block.
The Fi Series 3+ Smart Dog Tracker Collar combines cutting-edge GPS technology with AI-powered health and behavior monitoring, offering 2x improved location accuracy, nationwide coverage, and up to 3 months of battery life. Waterproof and compatible with Apple Watch, it delivers instant escape alerts and organizes your dog's medical records in one intuitive app—making it the ultimate smart collar for proactive pet parents.














| Battery Life | 3 months |
| Brand | Fi |
| Connectivity Technology | RF |
| Customer Reviews | 4.1 out of 5 stars 1,159 Reviews |
| Included Components | Charger, USB Cable |
| Item Weight | 77 Grams |
J**N
Great collar Works fantastic
This dog collar Works great. Lots of fun to see other people's dogs and track the activity. The battery life is phenomenal. Lasts weeks in between charges.
A**R
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!
W**.
Amazing health and location tracker!
Great product for tracking your animals health. It’s amazing all the other things it tracks also! Just like an Oura ring or an Apple Watch, but for your dog or cat. It just does so many things. If you care about your animal, this is a must buy!!
S**L
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.
T**N
Great GPS feature, weak design on collar snap
For the most part I like this collar and the GPS Tracker, The GPS Tracker feature is great. However, I have had mechanical issues with the snap clamp numerous times. My dog is a 70-pound, male black lab, 7 years old. I live on a farm. We take walks twice a day, morning and evenings. The collar has unsnapped itself 4 times. Two of which were in his bed it came off. The other two times were late evening, losing it in the woods. Not knowing until I get home. Then I've had to use the GPS tracker on my phone to go out into the night to hunt the collar. I was able to find it. but the collar is not reflective, and the LED light is very dim. The company I purchased it from is sending me a new collar to try. Just know the springs in these clamps are not that strong.
S**O
We tested the best dog trackers against one another
My husband and I rescued our dog Charlie 4 months ago. He’d been badly treated as a puppy and so sadly was still very anxious and skittish. We have been training him and he’s got better but at the start any sudden sounds or noises would trigger him, and he would immediately try to bolt. We live in the suburbs, but have a good sized property. Our yard is fenced all the way round, and all the dogs we’ve ever had have always loved it as they can roam off leash. That is except for Charlie…..who just tries to escape. A couple of close calls later, we realized that no doors could be left open, and someone would always need to keep an eye on him when he’s outside. I was still so worried that I looked into what we could use to track him so that I could have more peace of mind. We wanted to make sure that we got this decision right. So, we tested 3 of the best ones against each other: Tractive, Whistle, and Fi. I don’t typically leave reviews, but my husband said we should as it may help save another dog one day! We tested them over the course of 2 weeks, and focused on the following areas: 1. Location Tracking Accuracy 2. Escape Alerts (when your dog gets out) 3. Devices (size, weight, and comfort) 4. App (ease of use and other features) 1. Location Tracking Accuracy We really wanted a tracker that we could trust, so this was very important to us. We had to make sure that if Charlie was to get out unexpectedly, we would know exactly where he was to go get him. To test this, we did several walks with each of them where me or my husband would take Charlie on a walk away from the property and I would watch it on my phone to see where they were going. Some of these walks were around our neighborhood, and some were on hiking trails that were a bit more rural. Overall, there was some variation in the tracking, with the biggest difference being that the Fi and the Tractive are the only two that offer live location tracking, Whistle does not. Another thing we did learn about all of them though is that they will only be able to work in real time with cell service. We talked to support about this and it turns out that’s how they send the GPS location back to your phone. We thought this was important, and so focused on testing hikes that had spotty coverage to see which tracker would respond best. Fi was the only one that would give updates throughout the walk, even if they were intermittent. It seems that it repeatedly tries to ping the location back to your phone, whereas the others were only able to send some reports later on once we were fully in a cell service area. 2. Escape Alerts This was a quick one. I had my husband leave with Charlie and without his phone and I timed how long before I got a notification that he had left. We were trying to recreate a potential ‘escape situation’. This was the order we got our notifications: 1. Fi - 1 minute 29 seconds 2. Tractive - 3 minutes 47 seconds 3. Whistle - 4 minutes 13 seconds 3. Devices This is getting very long as I type it so I’m attaching some pictures of them alongside each other instead! The Tractive is the only one that attaches to your own collar and you don’t need to swap your collar out for, but the Fi is by far the smallest and lightest of the group. Whistle’s surprised us as we didn’t expect it to go so far back into the dog’s neck. 4. App We actually hadn’t thought about including this section when we first started testing, but after using them all for a few weeks we wanted to include it as they each have some cool features. All these companies did a good job with set up. They all took under 10 minutes to get up and running and were straightforward processes. Running through each of them in more detail below: Fi - tracks their location, activity, health and sleep. This is the only one to track sleep which was really cool to see. It’s also the only one with a built in LED light which was a great add for our nightime walks. It also had the longest battery life of all of them and was the only one that we didn’t need to charge over the 2 week period. Tractive - tracks their location and activity. Mainly focused on location but has a couple of neat activity features. Battery didn’t last very long. Whistle - tracks their location, activity and health. Definitely the most focused on health, and tracks things like scratching and licking. Didn’t find these that accurate though. Hope this helps some other dog moms. After the testing we decided to keep our Fi and return the others and are still very happy with our decision.
I**E
Definitely Fi Over Others
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.
A**R
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.
Trustpilot
3 weeks ago
3 weeks ago