The Ultrahuman Ring AIR health-tracking smart ring is eligible for purchase with HSA/FSA funds – enabling US shoppers to save on the fitness tracker.
As an advanced sleep, fitness, and heart rate monitoring wearable, the Ultrahuman Ring AIR fitness tracker is FSA/HSA eligible to purchase for yourself or members of your family.
What’s more, the Cardio Adaptability PowerPlug, and Voyager Ring Charger are also eligible for FSA/HSA.
Below, we explain how the HSA/FSA works and how to save money on your next smart ring.
What is HSA/FSA?
HSA (Health Savings Account) and FSA (Flexible Spending Account) are accounts that enable you to set aside pre-tax money to pay for eligible medical expenses. By using untaxed income to buy health-related products and services, you can save money, with the exact amount depending on your tax bracket.
While HSA funds don’t expire, FSA dollars are ‘use them or lose them.’ So it makes sense to spend unused savings before they expire at the end of the tax year.
And the good news is that you can use HSA/FSA funds to buy health monitoring devices like the Ultrahuman Ring AIR.
- Buy the Ultrahuman Ring AIR using FSA/HSA funds
Can you use HSA/FSA to buy the Ultrahuman Ring AIR?
Smart rings like the Ultrahuman Ring AIR offer continuous health data that can support the management of user wellness.
And because the Ultrahuman Ring AIR (as well as the Voyager Ring Charger and Cardio Adaptability PowerPlug) are always eligible, there’s no need for a Letter of Medical Necessity (LMN) to purchase.
The Ultrahuman Ring AIR tracks a wide range of deep health biomarkers, including heart rate, heart rate variability (HRV), skin temperature, sleep stages, movement, and recovery patterns.
This makes it a powerful tool for anyone managing fitness, well-being, stress, or managing energy levels.
How to buy Ultrahuman Ring AIR with HSA/FSA dollars
Step 1: Choose Sika or Flex at checkout

Head to the store page for Ultrahuman Ring AIR and choose your finish. At checkout, select “Flex | Pay with HSA/FSA” or “Sika – Pay with your HSA/FSA”.
Step 2. Pay using your HSA/FSA card

Enter your HSA/FSA card details to complete the purchase.
Step 3. Get an itemized receipt

Your order confirmation email includes an invoice that serves as an itemized receipt. A Letter of Medical Necessity (LOMN) isn’t required for Ring AIR or Add Ons, as they’re classified as ‘always eligible’ in the SIGIS product list.
Frequently Asked Questions
Can I claim for PowerPlugs such as Cardio Adaptability?
Yes — Cardio Adaptability – 1 Year PowerPlug is eligible for HSA/FSA reimbursement.
Do I need a Letter of Medical Necessity (LMN)?
No, Ultrahuman Ring AIR, Cardio Adaptability – 1 Year PowerPlug, and the Voyager Ring Charger are “always eligible” products – and don’t require a Letter of Medical Necessity (LMN). Pay via Sika or Flex—you’ll receive an itemized receipt from the respective payment processor. You can also use the invoice included in your order confirmation email, which serves as an itemized receipt.
Can I purchase other Ultrahuman products with HSA/FSA?
You can purchase the Voyager Ring Charger and Cardio Adaptability – 1 Year PowerPlug as part of your HSA/FSA funds.
Can I make a non-HSA/FSA payment and still claim the benefits?
If you’ve already made a purchase via a payment method that is not “Sika” or “Flex” then you can still use your funds but will need an itemized receipt for reimbursement. Your order confirmation email includes an invoice that serves as an itemized receipt.
I keep being pushed to Shop Pay and can’t see Sika or Flex as a payment option.
Check if there are sufficient funds in the account to complete the purchase – this is the most common issue. Also, ensure that all card details are correct and up to date.
Why was my FSA/HSA card rejected?
Check that there are sufficient funds in the account to complete the purchase – this is the most common issue. Also, ensure that all card details are correct and up to date.
I have FSA/HSA but don’t have a card, can I still pay?
Yes, you can buy your Ultrahuman Ring AIR and its add-ons and get a reimbursement. Your order confirmation email includes an invoice that serves as an itemized receipt.
What is Flex and what is the association with UIltrahuman?
Sika Health and Flex have partnered with Ultrahuman for HSA/FSA card purchases.
What is a Universal Product Code (UPC) / GTIN (Global Trade Item Number)?
The UPC is a unique barcode number used to identify retail products — it’s what you’ll typically see scanned at a checkout.
For HSA/FSA reimbursement, some administrators may request the UPC to verify that the item qualifies as a medical product. In some rare cases, they may ask for the GTIN (Global Trade Item Number), which is essentially an international version of the UPC used for product identification across systems.
You can request it directly from [email protected] if needed for your claim.