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HSA/FSA Eligible · Powered by Flex

Save an average of 30%with HSA/FSA.

Ring PRO is SIGIS-listed. Pay with your HSA or FSA card at checkout.
No letter needed for most plans.

Two questions.
Your route.

Which account?

Check your benefits card.

Got your HSA/FSA card?

Pay with your card. Done.

Ring PRO is SIGIS-listed, so most HSA/FSA cards approve it at checkout. A clinician reviews only if your plan asks.

  1. Add Ring PRO to your cart.
  2. At checkout choose “Flex | Pay with HSA/FSA”.
  3. Complete the short assessment if your plan requires it.
  4. Pay with your HSA/FSA card. Keep your receipt and any letter.

Card first.
Backup ready.

Most people

Use your card.

SIGIS-listed, so it goes through at checkout. Choose Flex, pay, done.

Time
~2 minutes
Letter
Usually not needed
If your plan asks

Get a letter.

Declined, or your plan wants proof? Flex connects you to a clinician. A letter only if appropriate.

Decided by
A clinician
Extra cost
Shown upfront
Claim later

Pay now. Claim after.

Pay any way, then claim from your FSA or HSA with your itemized receipt.

Extra cost
None
Reimbursement
Your plan decides

Plan it

Split it. Time it.

Use what you’ve got.

Put part of the price on your HSA/FSA card and the rest on a regular card.

$300
From your HSA/FSA account$300
From your credit or debit card$179
Ring PRO$479

Tax and shipping are added at checkout. Partial-balance payment depends on Flex confirming it for single items.

Beat the deadline.

FSAs reset every plan year. HSAs never expire.

Days left to order52
Order byDec 21
Plan year endsDec 31, 2026

Includes 10 days for the free sizing kit and delivery. Confirm your plan’s own order and claim deadlines.

How it works

Step 1How it works

Choose Flex at checkout

At checkout, select “Flex | Pay with HSA/FSA”. If you are logged into Shop Pay, please select “checkout as guest”.

Shop Pay
or
Checkout as a guest
1If logged in to Shop Pay, check out as a guest.

Step 2How it works

Pay using your HSA/FSA card

Enter your HSA/FSA card details to complete the purchase. If you don’t have your HSA/FSA card, you can enter a credit or debit card. Some items require you to confirm your eligibility through a brief questionnaire.

Credit cardVISAAMEX
Flex | Pay with HSA/FSAflex
2Select the Flex | Pay with HSA/FSA option.

Step 3How it works

Get an itemized receipt

Flex will email you an itemized receipt. Save this in case your HSA/FSA administrator requires more information.

Card Number
1234 1234 1234 1234VISAAMEX
3Enter your HSA/FSA card details.

At a 30% combined tax rate, paying with pre-tax HSA/FSA money could mean about…

At a combined tax rate, paying with pre-tax HSA/FSA money could mean about…

On a $479 Ring PRO

$143.70

$143.70 potential tax benefit when you pay for Ring PRO with pre-tax HSA/FSA money.

Your purchase price stays $479.

Illustration only. Depends on your taxes. CA and NJ tax HSA contributions. Not tax advice.

Keep the receipts.

  • Itemized receipt.

    Emailed after purchase. Also in your account.

  • Clinician letter.

    If issued, Flex emails it. File it with the receipt.

  • Returning it?

    Refunds go back where they came from. Already claimed? Tell your plan.

Still got 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 PRO, 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 Flex—you’ll receive an itemized receipt from the 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 “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 Flex as a payment option.

On the Checkout page, choose ‘Checkout as Guest’ option and you should see a full suite of payment options, including Flex. Or try the process in an incognito browser window.

Why was my HSA/FSA card rejected?

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.

I have HSA/FSA but don’t have a card, can I still pay?

Yes, you can buy your Ultrahuman Ring PRO and its add-ons and get a reimbursement. Your order confirmation email includes an invoice that serves as an itemized receipt.

Who is the HSA/FSA partner of Ultrahuman?

Flex has partnered with Ultrahuman for HSA/FSA card purchases.

Learn more from our blog

Learn more from our blog.

Ring PRO is on the SIGIS eligible product list, so most HSA/FSA cards approve it at checkout. Keep your itemized receipt; your plan may ask for it. Ultrahuman does not provide tax advice.