Today, we’re launching Fi Supplements—a new line of targeted, vet-formulated powders designed with years of data to outperform traditional supplements and elevate your dog’s health.
Why is a technology company entering the world of dog supplements?
It’s simple: At Fi, our mission has always been to keep dogs safe and healthy by empowering dog parents with the smartest tech for daily dog care. We see a massive opportunity to improve your dog’s health with smarter daily supplementation. While most dog parents work hard to optimize their dogs’ meals, many are fed the same food every day—unlike humans, who typically consume a more varied diet. These repetitive feeding habits can leave significant gaps in essential vitamins and minerals, which are critical for proper development and long-term health.
With millions of data points collected daily through our Series 3 smart collar—the most popular smart collar for dogs in the U.S.—we have unparalleled insights into how dogs move, sleep, and live. This data allows us to create smarter, more effective supplements tailored to each dog’s unique needs.
Smarter Recommendations Through Data
Fi Supplements don’t just stop at formulation; we’re taking the guesswork out of supplementation by using your dog’s health data to recommend the most effective formulas for their needs. For example:
- If your dog is highly active, we might suggest mobility support.
- If your dog struggles with restlessness or separation anxiety, a calming formula could help promote relaxation.
Our vision is to create a personalized approach to supplementation—informed by your dog’s unique health metrics.

The Fi Supplements Line
Fi Supplements meet NASC approval — the highest industry standard for safety and effectiveness — with rigorously tested, high-quality ingredients designed for maximum benefit. And with the Fi app, members can even track the impact of these supplements on their dog’s health, using their unique activity, sleep, and health data to see real, proven results.

Here’s what we’re offering:
- Fi 8-in-1: Packed with essential, targeted ingredients for comprehensive support, drawing upon years of data to maintain your dog’s overall daily health and cover all their basic needs to feel their best.
- Fi Hip & Joint: Loaded with Krill, Green-lipped Mussel, Glucosamine HCl, and MSM, Fi Hip & Joint supports mobility, flexibility, and connective tissue health to keep dogs active and adventure-ready.
- Fi Skin & Coat: Rich in Omega-3 Fatty Acids, Biotin, Zinc, and other essential vitamins and nutrients, Fi Skin & Coat supports vibrant, healthy fur for dogs of all breeds and ages, helping dogs with regular skin sensitivities elevate their skin health.
- Fi Calming: Formulated with a gentle, balanced blend of CBD, Valerian Root, Magnesium, and L-theanine, Fi Calming promotes relaxation during travel, separation anxiety, and everyday restless moments.
Continuing Our Mission to Keep Dogs Safe and Healthy
At Fi, we’re committed to leveraging technology and science to help you care for your dog smarter every day. Fi Supplements is the latest step in that journey, combining data-backed insights with vet-formulated solutions to meet your dog’s unique needs.