The Fi Series 3+ Collar takes everything you love about the Series 3 and levels it up. With smarter technology, deeper health insights, and more ways to stay connected, the Series 3+ is built for dog parents who want the most advanced collar we’ve ever made.
Click the Series 3+ banner in your Fi App to begin your upgrade. Need help? Start a chat with us here!
What Makes Series 3+ Next-Level?
Faster, Smarter Tracking: Equipped with an enhanced antenna, the Series 3+ delivers 2x faster and more accurate GPS Tracking. This means quicker updates when your dog is on the move - whether you’re exploring new trails or responding to an unexpected escape.
{Apple Watch Compatibility}: Stay synced without skipping a beat. The Fi Apple Watch App puts key location and activity data right on your wrist, offering seamless access to your Fi Profile from anywhere.
{AI-Powered Behavior Tracking}: Series 3+ is the first collar to detect steps, sleep, barking, licking, scratching, eating, and drinking - unlocking a comprehensive view of your dog’s wellness and daily routines. Spot trends earlier, and understand your dog like never before.
{AI-Organized Vet Records}: Upload your dog’s health documents directly in the Fi App. Our AI Vet Records feature organizes and summarizes them, keeping everything accessible for appointments, emergencies, and peace of mind.
Series 3 Vs. Series 3+ Feature Comparison
|
Features |
Series 3 | Series 3+ |
|
GPS Tracking |
✅ |
2x improved GPS tracking |
|
Lost Dog Mode |
Location updates in real-time |
Location updates in real-time |
|
Health Tab Access |
Activity + Rest |
Activity + Rest |
|
Behavior Tracking (AI) |
🚫 |
Eating, Drinking, Barking, Licking, and Scratching |
|
Apple Watch Integration |
🚫 |
✅ |
|
Battery Life |
3 Months |
3 Months |
|
Waterproof |
✅ |
✅ |
|
Extended Warranty |
✅ |
✅ |
Frequently Asked Questions
Do you have an upgrade offer for current Fi Members?
Yes, we do!
For Series 3 Members: Pay $99 to upgrade to the Series 3+ —available to all Series 3 members, regardless of membership. The cost is for the Series 3+ Device only, and will not affect your current membership. Your Series 3 Band and Base are compatible with the Series 3+ Device.
For Series 1 or 2 Members: Upgrade to the Series 3+ Collar by purchasing a 1 Year Membership for $189. A prorated credit is applied to your purchase for any remaining time on your current membership. The price includes the Series 3+ Device, Band, and Base.
Can I use my current Series 3 accessories with the Series 3+?
Yes. All current Series 3 accessories - including Charging Bases and Collar Bands - are fully compatible with Series 3+.
Do I need a new membership to upgrade?
You do not need a new membership if you're upgrading from Series 3. Your existing membership will continue uninterrupted.
If you're upgrading from Series 1 or Series 2, you’ll start a new 1 Year Membership upon activation.
Why upgrade from Series 2 or 3 to a Series 3+?
Series 3+ offers more precise GPS and unlocks exclusive smart AI features.