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The DOGISTRY x Fi Sweetheart Collar

Name: The DOGISTRY x Fi Sweetheart Collar
Brand: Dogistry™
SKU: DOG-FI-SWEETHEART-S
Price: 60.0 USD
Availability: InStock

Luxury design meets smart tech. This elevated collar band is crafted exclusively for the Fi GPS Series 3 and 3+ tracker — designed to deliver seamless Fi connectivity without sacrificing style. Whether you’re pairing it with our matching harness or making it a solo statement, this collar is built to perform and made to be seen.

$60.00

Size

Small

Medium

Large

X-Large

View SIZE CHART

Dogistry™

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Why It’s Different

✔️ Certified Fi Partner — Built for flawless Series 3 and 3+ integration and approved by Fi for proper contact and function

✔️ Refined Strength — Reinforced stitching and rose gold hardware offer elegant control — built to handle dogs up to 150+ lbs without sacrificing style

✔️ Lined with Luxe Vegan Suede — Soft against your dog’s neck, this premium lining delivers all-day comfort with a refined finish

✔️ Signature Embroidery — Dogistry’s design DNA in every stitch

Presale Details

🗓️ Ships September 1

💥 Limited quantities available — preorder now

This product is a Fi-compatible collar band. The Fi GPS module is not included. Not compatible with Fi Series 1 or 2.

Return Eligibility Checklist:

All returns must be in original unused, unworn, and unwashed condition; free of hair, fur and dirt.
All tags must be attached.
Returns must be received within 30 days from when you received your shipment.

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Designed for Seamless Fi Integration

Because performance shouldn’t mean sacrificing style.

Love at first walk

For dogs with serious street style who know how to turn heads.

Not All Fi Collar Bands Are Created Equal.

DOGISTRY collar bands are independently designed, strength-tested, and approved by Fi as a certified partner for flawless Series 3 and 3+ integration. Most Fi-compatible collars on the market are oversized, off-balance, or poorly constructed. Ours aren’t. Guaranteed.

As Seen In

★★★★★
We get so many compliments and people saying the denim harness is so stylish . Not only stylish but super comfy, secure and soft. Dressed to impress!
Kim N.
Verified Buyer

★★★★★
From material to construction, and function to versatility, this harness set is truly innovative. This set was made for dog lovers who appreciate both comfort and style. I highly recommend it!
Elaine
Verified Buyer

★★★★★
We love our new matching harnesses! Nice quality and cute design. An extra bonus is that it’s easier to put on wiggly puppies than most of the less substantial harnesses.
Allison C.
Verified Buyer

★★★★★
Add customer reviews and testimonials to showcase your store’s happy customers.
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Los Angeles, CA

Start A Return/Exchange

We know you will love our products, however in case you need to return or exchange, just click here!

Return Policy

Explore our hassle-free return and refund policy for worry-free shopping. Customer satisfaction guaranteed.

Customer Support

A seamless shopping experience is our goal. Reach our dedicated support team for any queries or assistance.

Great question. The Fi collar bands include custom-engineered, patent-pending end links that allow secure integration with the Fi Series 3 GPS device. These components are precision-molded and built to exact Fi specs—unlike standard collars, which don't require this level of technical hardware. In short: you're not just paying for the collar—you’re paying for the technology interface that ensures your Fi tracker works seamlessly and securely without compromising style.

Use a soft tape measure around your dog’s neck, then refer to the sizing chart above. Leave room for two fingers under the collar for the perfect snug-but-comfy fit.

It takes seconds. The Fi Series 3 pops in and out of the integrated end-links—no tools needed. Our collar bands are engineered for a secure fit with no wobble to keep your tracker firmly in place.