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Winni&Me Woofwear

Fi Compatible Hardware Upgrade

Fi Compatible Hardware Upgrade

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Find Your Dog's Size

Size Neck Measurement Great For
SM 10–15 in Chihuahua, Yorkie, Toy Poodle
MED 13–18 in Beagle, French Bulldog, Corgi
LG 18–24 in Labrador, Golden Retriever, Boxer
XL 22–28 in German Shepherd, Rottweiler, Great Dane

Ranges overlap slightly since collars adjust within their size — size down for a snugger fit, or size up if your dog is still growing.

How to Measure

Wrap a soft tape measure around your dog's neck where the collar will sit, then add 2 inches for comfortable movement.

Choosing a Width

3/4" Small/toy breeds, delicate patterns
1" Most versatile — medium to large dogs
1.5" Large/giant breeds, extra durability

Not every pattern is available in every width — check this listing's options above.

Regular price $29.95 USD
Regular price Sale price $29.95 USD
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Upgrade your Winni&Me collar to be compatible with the Fi Series 3+ GPS tracker. This hardware piece is sewn directly into your collar, providing a secure and seamless attachment point for your Fi device.

Please note: This is the hardware only — no loop attachment or GPS is included. 

  • Available in 3/4" and 1" widths to match your collar size
  • Designed for a clean, integrated look
  • Compatible with Fi 3 Series GPS trackers

Select your collar width below to ensure the correct fit.

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