![New Fi Series 3+ Smart Dog Collar – GPS Dog Tracker and Activity & New Fitness Monitor, Waterproof, LED Light, Escape Alerts, Nationwide Coverage [Free 6 Month Membership] (Blue, Small)](https://m.media-amazon.com/images/I/71-sfQnNQ2L._AC_SL1500_.jpg "New Fi Series 3+ Smart Dog Collar – GPS Dog Tracker and Activity & New Fitness Monitor, Waterproof, LED Light, Escape Alerts, Nationwide Coverage [Free 6 Month Membership] (Blue, Small)")
New Fi Series 3+ Smart Dog Collar – GPS Dog Tracker and Activity & New Fitness Monitor, Waterproof, LED Light, Escape Alerts, Nationwide Coverage [Free 6 Month Membership] (Blue, Small)
$99.00
Price: $99.00
(as of Nov 11, 2025 14:17:34 UTC – Details)
Product description
TRACKS EVEN FURTHER
Airtags use the proximity of iPhones to track objects. If your dog is not within 200ft from an iPhone, the Airtag system won’t be able to find them.
Fi uses GPS tracking with nationwide coverage that works wherever they are, the second they escape.
XS and Small Example Breeds:
XS: Maltese, Pomeranian, Toy Poodle, etc.
Small: Boston Terrier, Cairn Terrier, Cavalier King Charles, Dachshund, Jack Russell, Mini Aussie, Pug, etc
Medium Size Example Breeds:
Aussie, Beagle, Border Collie, Corgi, English Bulldog, etc.
Large Size Example Breeds:
Boxer, Doberman, German Shepherd, Golden Retriever, Labrador Retriever, Pit Bull, Siberian Husky, Standard Poodle, etc.
X-Large Size Example Breeds:
Bloodhound, Great Dane, Great Pyrenees, Mastiff, Newfoundland, Rottweiler, etc.
What’s in Your Box 
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Customers say
Customers find the dog tracker useful for keeping track of their pets and appreciate its accurate GPS capabilities. The device is easy to set up and use, and customers consider it worth the money for peace of mind. While some customers report the battery life is amazing, others mention it starts to die quicker than expected. The functionality receives mixed reviews, with some saying it works well while others find it completely useless.
8 reviews for New Fi Series 3+ Smart Dog Collar – GPS Dog Tracker and Activity & New Fitness Monitor, Waterproof, LED Light, Escape Alerts, Nationwide Coverage [Free 6 Month Membership] (Blue, Small)
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$99.00
Pvtworld –
This collar works great and can be trusted!!
I was skeptical due to the monthly subscription cost and initial price. Ordered collar and 6 month subscription to try out. The peace of mind you have from this collar is worth the monthly subscription. App is easy and fun to use. Follow other Fi dogs in the area or similar breeds on the Fi app. It has become a game to ensure she stays on streak and gets her steps. The additional information like sleep habits is very helpful.Found a central location for the base that has no issues with range or coverage on my 2 acres.Option to share the app with others and send out a “lost dog posse” is great!Bit of a wait when “lost dog” mode is activated. Most often located before the GPS comes online. However, GPS is spot on when it does.For every day the apps’ location shown is close to within 20 feet. My pup sleeps hard and does not wake when always when I call …. check the app and it says she is right here, have learned I can trust the app and avoid any panic.
Brown –
A worthwhile purchase
This item has proven to be a great purchase. I walk my dog off leash in the woods and gives me a sense of security that said something unusual happened. I would be able to track the dog. Quality appears to be good.
Mike R. –
Fitbit with locator for your pup
Seems good so far… lucky I haven’t had to use for location yet, but it tracked nicely when we were in the Smokey Mountains with our boy. The activity tracker is nice to monitor (kinda like a Fitbit) . The health monitoring is nice but no real guide as far as when you should be paying closer attention. I wish the collars had different color options when you buy, but you can purchase 3rd party for a premium. Overall I love it
Paige Marie Harkema –
Gives peace of mind to this overprotective furmom
This is the second Fi Collar I have gotten for my dogs. The first collar I got for free through my Ollie Pet Food subscription.I have a Fi Collar for my escape artist teacup Yorkie and my husky who is an outdoor-only dog. I love the activity monitoring but mainly purchased this to get alerts if one of the dogs ever leaves our property. Unfortunately the only downside is that I’ve gotten several alerts on my phone saying my dog has left the safe area (which leads to the family going in to full panic mode as we live on a 55mph road at the crest of a hill) when the dog actually hasn’t!!!! And when the dogs do actually leave the safe zone (for a walk or car ride) it can take up to 2 full minutes for the app to notify that the dog has left the safe zone. A lot can happen in two minutes.But overall this gives me peace of mind when I’m away from home our far back out onto the property doing work.
Todd flanigan –
Good battery
Works great! The battery last super long the GPS is in 100% accurate but nothing ever really is we walk around the lake and when it’s done it says we walk through the lake which is actually kind of funny. I would definitely recommend though.
Tierra M –
Buy This Collar for Your Dog
I can’t say enough positive things about this collar. I love it so much that I am about to buy a second for a new puppy I am adopting this weekend. Not only is the tracking accurate but I’m able to invite other family members to view the tracking as well in case I am not home when the dogs get out. There is also tracking on my dog’s sleep, steps and other health tracking. For years I only had an airtag on my girl and now I can get real time tracking.
Michael S. –
Great product- Highly recommend
We bought this after our rescue dog got loose and spent a week and a half in the woods. We love that it notifies us if he goes outside of the safe zones. It is convient to check the app and make sure he has met his step goal- which keeps us accountable to our personal step goals. Would highly recommend
Mark F –
Quicker Delivery than going direct to FI….
So I bought this on line as an older model from FI broke down and I did not want my dog wandering around untracked as we just moved. The delivery was very quick and I added to my account. There was some confusion as I paid for another 12 months membership to register it but after calling FI they simply added that on to the 6 months. Generally FI works well (I have two), the battery will last 2-3 weeks dependent on if at home base or not. The collars get messy quite quickly and you can’t use any replacement it has to be FI’s and they are not cheap.