The DOGISTRY x Fi Sweetheart 3+ Collar Band Dogistry™
The DOGISTRY x Fi Sweetheart 3+ Collar Band Dogistry™
The DOGISTRY x Fi Sweetheart 3+ Collar Band
The DOGISTRY x Fi Sweetheart 3+ Collar Band Dogistry™
The DOGISTRY x Fi Sweetheart 3+ Collar Band Dogistry™
The DOGISTRY x Fi Sweetheart 3+ Collar Band Dogistry™
The DOGISTRY x Fi Sweetheart 3+ Collar Band
The DOGISTRY x Fi Sweetheart 3+ Collar Band
The DOGISTRY x Fi Sweetheart 3+ Collar Band
The DOGISTRY x Fi Sweetheart 3+ Collar Band
The DOGISTRY x Fi Sweetheart 3+ Collar Band
The DOGISTRY x Fi Sweetheart 3+ Collar Band

    Dogistry™

    The DOGISTRY x Fi Sweetheart 3+ Collar Band

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    • Price:
      $60.00
      Shipping calculated at checkout.
    • Sku:
      DOG-FI-SWEETHEART-L
    Subtotal: $60.00

    Why It’s Different

    ✔️ Certified Fi Partner — Built for flawless Series 3/3+ 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

    Limited time offer: Spend $125+ at Dogistry.com and receive a FREE Fi Mini GPS Tracker — with live GPS and a 6-month Fi subscription, on us. A link to claim your free Fi Mini tracker will be included in your shipping confirmation email. Fi devices ship directly from Fi within 2–4 days, NOT from Dogistry.

    This product is a Fi Series 3+ compatible collar band. The Fi GPS tracker device is not included.  Visit TryFi.com to learn more about the tracking device. 

    Not compatible with Fi Series 1, 2, or Fi Mini.  Fi Collar bands may be exchanged for a different size, however they are NOT eligible for a refund. 

    Shipping
    We use USPS Ground Advantage, USPS Priority Mail, and USPS Priority Mail Express for shipping
    Return policy
    Changed your mind? No worries! You can return unused, unopened items within 30 days for a full refund or exchange. Just contact our support team to start the process — we're here to help.
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    Where Comfort Meets the Wild
    Explore Together

    Where Comfort Meets the Wild

    Built for dogs who love the outdoors, K9 Outdoors delivers dependable gear for every adventure.

    Got Questions About Our Product?

    What products does K9 Outdoors offer?

    We offer durable outdoor dog gear including harnesses, leashes, collars, and adventure accessories designed for active dogs.

    Are K9 Outdoors products suitable for all dog sizes?


    Yes, our products are available in multiple sizes to fit small, medium, and large dog breeds comfortably.

    Is the gear suitable for outdoor and all-weather use?


    Absolutely. Our gear is made with strong, weather-resistant materials ideal for outdoor adventures in different conditions.

    How do I choose the right size for my dog?


    You can refer to our size guide on the product page or contact our support team for help selecting the perfect fit.

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