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Fi Collar Upgrade

For upgrading a new collar purchased at the same time

Fi Collar Upgrade

Regular price $14.00 Sale



Make any of our 1" collars able to hold your Fi GPS by purchasing this upgrade along with a 1" collar.

You can learn more about the Fi GPS module (not included) here.

If you still need to learn about or purchase a Fi, click here for a $50 discount! Use code "stuntpuppy50"

Width is 1" and can fit necks as small as 12" and as large as you need.  The collar will be adjustable smaller and larger from this point. Remember - the webbing width can only be 1" because the Fi is 1". We can only adjust length.

After ordering, be sure to email with your order number your dog's neck size so we can ensure a great fit. 

Fi Upgraded collars are custom items and take up to two weeks to ship.

Collars with a Fi upgrade are not returnable but fully covered under warranty for defects. If there is a sizing issue, please let us know and we'll do our best to remedy the situation.

Fi links are for upgrading a new collar only, and are not sold separately. 

Sizing info

Frequently Asked Questions

  • Return Information

    For orders less than 30 days, visit our return portal for a free return. Once you've been to the portal and filled out the information - you'll receive an email with a pre-paid label to return your item. You're done. If your order is older than 30 days, click here

  • Shipment Tracking

    Stunt Puppy uses USPS, UPS or FedEx to provide our customers with the best rates and service. The majority of orders are shipped within one business day. You can also contact us with any questions. Once your order has been shipped, you will receive a shipping confirmation email from us. We will include the tracking number so that you may track your order.

  • Warranty

    All our gear is warrantied one year from the time of purchase. If you have an issue - please contact us at

  • Customer Service

    Contact us at or 888-265-5006 and we'll be happy to help.


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