Understanding the Evolution of the Fi Collar: Series 1 & 2 vs. Series 3

The Fi Collar has become a go-to for dog owners looking for GPS tracking, durability, and peace of mind. But with multiple generations — Series 1, Series 2, and now the new Fi Series 3 — it’s important to understand the differences before choosing your next collar.

At Cookies & Co., we specialize in making the highest quality Fi Compatible Collars by hand using genuine BioThane® — a huge upgrade over standard options that come stock with your Fi tracker. Let's dive into what sets the Series 3 apart, and why a Cookies & Co. collar is the best investment for your dog.

Fi Series 1 and Series 2: The Early Innovations

• Attachment Method: Both Series 1 and Series 2 Fi Collars use metal end-links that clamp into slots on the collar.

• Fi Device Material: The Fi series 1 and 2 device itself is made primary with a plastic shell which may become weak and wear away after some time, making the metal end links that attach to the device loose and prone to detach itself. 

• Performance: These series introduced GPS tracking and smart features but had room for improvement in battery life and durability.

Fi Series 3: A Major Upgrade

• New Compact Design: Fi Series 3 features a smaller, lighter module with stronger, more secure connection points. Sporting an all metal shell, the connection points ensure the device won't fall out on it's own.

• Better Durability: Enhanced shock resistance and a more waterproof design mean it’s built for true adventure.

• Stock Collar Materials: While Fi has upgraded their Fi tracker device offerings, the collar itself still comes stock with woven/synthetic nylon that don’t match the resilience of premium materials like BioThane®.

Important Note:
The Fi Series 3 requires a different collar attachment design than Series 1 and 2. Make sure your Fi Compatible Collar is specifically made for the module that you own — at Cookies & Co. we support all the Fi Series 1, 2, and 3!

Why Choose a Handmade Cookies & Co. BioThane® Fi Compatible Collar?

Handmade to Order

Every collar we create is made by hand, just for you and your dog. No mass production. We believe your best friend deserves a collar as unique as they are. 

The Power of Genuine BioThane®

• Waterproof & Odor-Resistant: No more stinky, soggy collars after a rainy hike. Your Fi Tracker is waterproof, which means you need a waterproof compatible collar!

• Durable Yet Soft: Tougher than leather yet flexible and comfortable for everyday wear.

• Easy to Clean: Just wipe it down — no special maintenance required.

• Long-Lasting Beauty: BioThane® doesn’t fade or fray like traditional materials.

Compared to the stock Fi Collars, a BioThane® Fi Compatible Collar gives your pup unmatched performance, style, and comfort.

Designed for Fi Series 1, 2, and 3

Whether you're still rocking the Series 2 or have upgraded to the Series 3, we have perfectly fitted collars to securely and stylishly house your Fi module.

Customization Options

Pick your favorite colors, hardware (stainless steel/brass), and the collar widths that fit your pup.

Final Thoughts: Why Cookies & Co. BioThane® Collars Are the Smart Upgrade

If you’re investing in a smart GPS tracker like the Fi Collar, it makes sense to pair it with a collar that matches in quality. With Cookies & Co., you’re getting:

• A custom fit for your Fi Series 1, 2, or 3 device

• The unbeatable durability and elegance of BioThane®

• Handmade craftsmanship built for real adventures

Ready to upgrade?
Shop our Fi Series 3 Compatible Collars today and discover why smart dogs and smart owners choose Cookies & Co.!