Quick Answer
In the US the Ultrahuman Ring now means the Ring PRO at around $480. The cheaper Ring AIR was shut out by an import ban. Ultrahuman publishes up to 15 days of battery, up to 45 days with the charging case, and no subscription to read your own data. That is the strongest reason to buy it over a ring that charges a yearly membership. Two things should slow you down. The premium features sit behind an Ultrahuman Max plan at about $100 a year. And Oura filed a fresh patent suit in October 2026, asking a court to stop US sales. Ultrahuman's CEO says no court order affects the ring and it is still on sale.
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Ultrahuman lists the Ring PRO, supplied with the PRO charging case, at $479 in the US, around $480. We would buy it for the battery and the missing membership fee. We do not own one. Our own gear is a barrel sauna, an unchilled ice bath in the backyard and one red light panel. So what follows is Ultrahuman's own spec and price pages, read against its published research, the outside sleep-lab studies on smart rings, and the court filings on whether you can still buy it. See about BankrollZen for where our testing stops.
Last reviewed: November 2026
Quick comparison: what Ultrahuman sells, and the ring it competes with
| Ring | Best for | Price | Battery | Weight | Subscription | Rating |
|---|---|---|---|---|---|---|
| Ultrahuman Ring PRO | Two weeks between charges, no membership | ~$480 | Up to 15 days, 45 with the case | 3.3 to 4.8 g | None for your data. Max plan ~$100/yr | 4.0 |
| Ultrahuman Ring AIR | See the US availability section below | ~$350, Ultrahuman's own table | 4 to 6 days | 2.4 g | Same | Not rated: see below |
| Oura Ring 4 | Outside, peer-reviewed accuracy testing | ~$350 (Silver) | 5 to 8 days | 3.3 to 5.2 g | About $70 a year, and limited without it | 4.2 |
Prices and specs last checked 2 November 2026 and they move.
What "Ultrahuman Ring" means in the US right now
Ultrahuman's own comparison table sets the Ring PRO beside the Ring AIR, which it lists at around $350. A US import ban on the Ring AIR took effect after Oura secured a patent infringement ruling from the US International Trade Commission. Ultrahuman's redesigned Ring PRO launched in February 2026 and received a favourable ruling from US Customs and Border Protection in March 2026.
On 22 October 2026 Oura sued again, in a federal court in Texas. It says the Ring PRO breaks two more of its patents, numbered D804,471 and 12,769,363. Oura wants money and a permanent injunction, a court order that would stop Ultrahuman selling the ring. One of the two patents was issued to Oura on 20 October, two days before the filing. Oura also named SVTronics as a defendant, a Texas electronics manufacturer which, Oura says, builds the Ring PRO at a plant in Plano.
Ultrahuman's position, from co-founder and CEO Mohit Kumar: "There is no court order affecting Ring Pro, and it remains available to customers in the U.S."
On Ultrahuman's account the ring remains available to US customers today. If that bothers you, the company doing the suing is the one whose rings are not at risk, and we would buy that one instead. Related: Oura vs Ultrahuman.
The no-subscription claim, priced out properly
Ultrahuman's own purchase FAQ puts it plainly: "there are no recurring subscription fees for accessing your data."
Oura charges $5.99 a month, about $6, or $69.99 a year, about $70, for Oura Membership. Oura says that membership "translates your body's data into actionable insights".
What "your data" covers is the bit to read twice. Ultrahuman's published feature list for the Ring PRO runs to a Sleep Index, Dynamic Recovery, Stress Rhythm and a Movement Index. Ultrahuman prices Ultrahuman Max at about $100 a year, and says the plan includes "all premium PowerPlugs, future releases, unlimited Jade Pro, UltrahumanX protection and member benefits." Among the things it lists inside Max: heart health and recovery, cycle and ovulation insights, and snoring and breathing insights.
Ultrahuman's line: "there are no recurring subscription fees for accessing your data", with Max at about $100 a year on top. Oura's line, at about $70 a year: "Without a membership, the Oura Ring can be used only with limited functionality."
What the accuracy evidence actually is
Ultrahuman publishes its own accuracy research, and the detail in it is more useful than the count. Its studies index is grouped by what is measured, and gives the reference standard and the cohort on every study.
The most useful one for a buyer is the September 2026 paper on heart rate variability, because of what it admits. Heart rate variability, or HRV, is the gap in time between one heartbeat and the next, and how much that gap moves. Ultrahuman's sleep HRV is the nightly value shown in the app, and it is the mean of the readings kept during sleep. Ultrahuman put the ring against a chest strap that records a single-lead ECG, a heart trace read off the chest. Across nine nights from nine adults, the ring's nightly sleep HRV read 1.3 ms higher than the strap on average. It was out by 9.9% of the strap's value. Single short readings were much looser: each 24-second reading was out by 30.0% on average.
Two caveats come from the paper itself. The sample is nine nights from adults aged 20 to 40. The authors say that makes the estimates imprecise, and they may not apply to older adults. The authors are also listed under Ultrahuman Healthcare, the maker of the ring, not an outside lab.
The second finding is the one every owner should know. When Ultrahuman shipped an updated HRV calculation in September 2026, members' numbers moved. In 1,026 members who got the update, median sleep HRV fell 33.8%, from 69 ms before to 46 ms after. Resting heart rate did not move at all. Deep sleep fell by 5.0 minutes and the recovery score by 2.0 points. Ultrahuman's own advice is that nights after the update are best compared with other nights after it.
Then there is the outside research, which tests other rings. In 2025 the journal Scientific Reports published a study that checked three rings against the gold-standard sleep-lab test, on people spending the night in a university sleep lab. The three rings were Oura, SleepOn and Circul. Telling sleep from being awake came out around 85% accurate for the Oura and SleepOn rings. Splitting sleep into four stages was far weaker, at 53.18% and 50.48%. Ultrahuman was not one of the rings tested.
Two separate things follow. The better of those two four-stage figures is 53.18%, against about 85% for telling sleep from wake. And the Scientific Reports team tested Oura, not Ultrahuman, while Ultrahuman's own HRV paper was written by its own staff. Oura leans on that: its sales page says the ring's accuracy "has been tested against gold-standard lab measurements in independent, peer-reviewed studies". The second point is the one we docked a mark for. Related: best HRV monitors. Our HRV monitor round-up covers which devices have outside validation.
Battery and storage: the one spec with no argument
Ultrahuman publishes up to 15 days of battery for the Ring PRO. That is about 12 days in Turbo Mode and more than 15 in Chill Mode. With the PRO charging case the total runs to 45 days. Oura publishes 5 to 8 days for the Ring 4. So: up to 15 days against 5 to 8.
Storage is the less obvious upgrade. Ultrahuman publishes up to 250 days of data on the Ring PRO itself, and up to 1 year of ring data on the PRO Charger case. The Ring AIR held four days. Ultrahuman's pitch for the bigger buffer is that you can "go off the grid and keep your adventures uninterrupted".
You pay for that in bulk. Ultrahuman publishes 3.3 to 4.8 g and 2.65 mm for the Ring PRO, against 2.4 g and 2.4 mm for the Ring AIR. The ring with the longer battery is the thicker one. Both are rated to 100 m, or 328 ft, of water resistance.
One design detail is worth more than its line on the spec sheet. Ultrahuman calls it ProRelease. The ring is built so it "can be safely cut in case of finger swelling or injury." Anyone who has worn a sealed titanium band on a swollen finger will know why that matters.
Sizing, HSA and FSA, and the bits that trip people up
Three practical things before you order.
Order the sizing kit. Ultrahuman says it sends a free kit of plastic sizers in sizes 5 to 14 with a Ring PRO order. It also warns that "Ultrahuman Ring PRO sizes may differ slightly from standard US ring sizes, and we don't offer half sizes", so your jewellery size is not the number to give them. Ultrahuman does say that if you know your Ring AIR size, the Ring PRO fits just the same.
It is HSA and FSA eligible. Ultrahuman lists the Ring PRO as HSA/FSA eligible and offers HSA or FSA payment at checkout, under the line "Save more with your pre-tax dollars". On a $480 ring, that is worth sorting out before you order.
There is a trade-in. Ultrahuman advertises up to $115 of credit for an existing ring. You do not post the old one back: the credit comes off the serial number. Worth checking what yours is worth before you pay list price.
Who should skip it
Buy something else if outside-validated sleep staging is the reason you are spending the money, because the sleep-lab study above tested Oura, SleepOn and Circul, not Ultrahuman. Price is the other reason to walk: Ultrahuman lists the PRO at $479, around $480. A live patent fight over US sales is a fair thing to refuse too. And if you plan to skip Max, remember what Ultrahuman lists inside it: heart health and recovery, cycle and ovulation insights, snoring and breathing insights, and unlimited Jade Pro. Related: trackers without a subscription and our recovery gear coverage.
FAQ
Is the Ultrahuman Ring subscription free?
Yes, for accessing your data. Ultrahuman's purchase FAQ says there are "no recurring subscription fees for accessing your data". The published feature list for the ring runs to a Sleep Index, Dynamic Recovery, Stress Rhythm and a Movement Index. The premium features are sold as PowerPlugs inside an Ultrahuman Max plan at about $100 a year. Ultrahuman lists heart health and recovery, cycle and ovulation insights, snoring and breathing insights and unlimited Jade Pro inside that plan. So Ultrahuman states there are no recurring subscription fees for accessing your ring data, and it prices Ultrahuman Max at $99.99 for one year.
Can you buy the Ultrahuman Ring AIR in the US?
A US import ban on the Ring AIR took effect after Oura secured a patent infringement ruling from the US International Trade Commission. Ultrahuman's redesigned Ring PRO launched in February 2026 and received a favourable ruling from US Customs and Border Protection in March 2026. Ultrahuman's own comparison table lists the AIR at around $350. The ring on its US buy page is the PRO, at around $480.
Can you still buy the Ultrahuman Ring PRO in the US?
Ultrahuman lists it on its US buy page at $479, around $480, and its CEO says "there is no court order affecting Ring Pro, and it remains available to customers in the U.S." What Oura's October 2026 complaint asks a Texas federal court for is money and a permanent injunction, a court order that would stop Ultrahuman selling the ring. One of the two patents behind it, 12,769,363, was issued to Oura on 20 October 2026, two days before the filing.
How accurate is Ultrahuman's HRV?
Ultrahuman's own 2026 paper put the ring against a chest-strap ECG over nine nights. The nightly sleep HRV figure read 1.3 ms higher on average, and was out by 9.9% of the strap's value. Each individual 24-second reading differed from the ECG by 30.0% on average, against 9.9% for the nightly figure. Two limits. The study is nine nights from nine adults aged 20 to 40, run by the maker. And a September 2026 update moved members' median sleep HRV down 33.8%, after which Ultrahuman advises comparing nights after the update with other nights after it.
Why did my Ultrahuman HRV suddenly drop?
Ultrahuman reports that in 1,026 members who moved to the new HRV calculation, median sleep HRV fell 33.8%, from 69 ms to 46 ms. Resting heart rate did not change, and the sleep score moved less than 1%. Ultrahuman's advice is to compare nights after the update with other nights after it.
Ultrahuman Ring PRO vs Oura: which should you buy?
Buy the Ring PRO if battery life and no membership fee are what you care about. Up to 15 days against Oura's 5 to 8, and no recurring fee for your data, both go Ultrahuman's way. Our pick for outside validation is Oura. The 2025 Scientific Reports study evaluated the Oura ring, and Oura charges $69.99 a year, about $70, for Oura Membership. Related: Oura vs Ultrahuman.
Does the Ultrahuman Ring PRO work for swimming?
Yes. Ultrahuman rates both the Ring PRO and the Ring AIR to 100 m, or 328 ft, of water resistance.
Our Verdict
If the membership fee is the thing that annoys you, we would buy the Ring PRO at around $480. Order the free sizing kit first. Up to 15 days of battery, up to 45 with the case, 250 days of storage on the ring, and no recurring fee for your own data. Our read: that adds up to a ring you can forget about.
The point comes off for two reasons. The accuracy case is Ultrahuman's own research: carefully published, openly caveated, but not yet checked by anyone outside the company. And Ultrahuman prices its Ultrahuman Max plan, which holds the premium PowerPlugs, at $99.99 for one year. On the lawsuit: Ultrahuman says no court order affects the ring, and what Oura has asked the court for is an injunction against selling it.
Our Top Pick
Ultrahuman Ring PRO
From ~$480
Before you buy
Where the premium is materials, not marketing
We take the spec sheets apart across saunas, cold plunge, red light and recovery, and show where the flagship price buys real hardware, and where it just buys the logo.
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