Upgrade Any Collar to be Fi Compatible

  • Sale
  • Regular price $ 16.00

Fi Device Sold Separately

This collar upgrade does not include the Fi Smart Dog Activity Tracker. 
You must own a Fi device in order for this collar to work properly. 

Need a Fi Collar Set? Snag one at www.tryfi.com with discount code ZALEY50 and save $50 on your collar kit! 


Upgrade any fabric collar or Endurance Collar to be Fi Compatible.
This listing cannot be purchased individually, it must be purchased with a collar.


Note: the sizing change with adding this option

No collar is indestructible, customers should check for wear and tear of their dog's collars and replace when necessary. It is the full responsibility of the customer to determine the suitability of the collar for their pet.

Customer Reviews

Based on 3 reviews
Ben Schein
High quality and great design

I bought this for my 75-pound golden retriever. She can be a bit of a puller on the leash, so I was nervous about the quality/durability of the material, especially on the leash ring. I'm thrilled to say that the leash ring (and all rings) appear to be solid metal and are extremely sturdy. I purchased the martingale and Fi upgrades and have had zero problems; will definitely be buying from again!

Troy Buckaloo
Beautiful collar!

Great quality and very easy to attach my Fi device to it.

Caitlin Haworth

Upgrade Any Collar to be Fi Compatible