Our all-round ring pick
Oura Ring 5
Compact titanium sleep ring that needs a paid membership
$399
Compare with this one →Our no-membership ring pick
UltrahumanRing PRO
Subscription-free titanium ring with its charging case included
Source-based analysis, not hands-on testing. Our method
Cofounder of Superhuman Chambers · About the author. General information, not medical advice. No independent clinical review is claimed.
The verdict
Ultrahuman Ring PRO is a $479 titanium smart ring with temperature, PPG and motion sensors, and its PRO Charging Case is included. Ultrahuman rates the battery at up to 15 days and says you pay no recurring fees to access your data. Owning it for three years costs the purchase price unless you add optional PowerPlugs or UltrahumanX coverage.
The trade-off
Ultrahuman publishes no Ring PRO accuracy figures on the pages checked, some features are paid PowerPlugs, and theft and loss cover needs the $54 two-year UltrahumanX plan.
Model reviewed: Aster Black finish, whole sizes 5 to 14, with PRO Charging Case
$479
Check price at Ultrahuman US price, checked
No affiliate commission on this link. Check the exact variant before buying.
About this price
Ultrahuman's US Ring PRO buy page listed it at $479 when shipping to the United States. The charging case was marked FREE, the order total was $479, and shipping and tax were calculated at checkout. No sale, strikethrough, coupon or member price was shown. All four finishes cost the same. Ultrahuman's Ring PRO vs Ring AIR comparison page also lists $479. The listed price doesn't reflect the trade-in offer (save up to $115), the unpriced 'Heroes Of The World' special pricing or Klarna and Affirm split payments.
A GOOD FIT FOR
Anyone in a whole ring size from 5 to 14 who wants long battery life and would rather pay $479 once than pay a yearly membership.
- You want a ring-based wellness tracker and would rather pay once than keep paying a membership
- You want to charge rarely: Ultrahuman rates it at up to 15 days per charge and up to 45 days between wall charges with the included case
- You wear a whole ring size from 5 to 14
- You plan to pay with HSA or FSA funds, which the US page says the ring is eligible for
THINK TWICE IF
- Anyone who needs a half size, since Ring PRO comes in whole sizes only
- Anyone who wants published accuracy figures for Ring PRO itself, since none were found on the pages checked
- Anyone who needs a medical device, which Ultrahuman says Ring PRO isn't
What still needs checking
- Band width and per-size inner diameter
- Whether a worn-out battery is repaired or replaced at a cost, since the Terms of Sale exclude battery wear from the limited warranty
- Independent, peer-reviewed accuracy data for Ring PRO against polysomnography or ECG
- Battery lifespan, out-of-warranty replacement cost and charger power draw
- Renewal prices for PowerPlugs after the first term
- Minimum supported iOS and Android versions
- How long Ultrahuman will sell and support Ring PRO in the US
The practical details.
| Exact variant | Aster Black finish, whole sizes 5 to 14, with PRO Charging Case |
|---|---|
| Battery life | Up to 15 days (about 12 days in Turbo Mode, 15+ days in Chill Mode). Up to 45 days between wall charges with the PRO Charging Case. About 2.5 hours for a full charge. |
| Sensors | Temperature sensor, redesigned PPG sensor and 6-axis IMU. Dual-core processor with on-chip machine learning. |
| Subscription | No recurring subscription fees for accessing your data. Optional PowerPlugs cost extra. Cardio Adaptability, for example, is $24 for 1 year or $38 for 2 years. Cycle & Ovulation Pro is $39 for 1 year or $69 for 2 years. |
| Data storage | Up to 250 days of data on internal and external flash, per Ultrahuman's comparison page. Up to 1 year of ring data backed up to the PRO Charging Case. |
| Water resistance | 100 m (328 ft) |
| Sizes | 5 to 14, no half sizes. Ultrahuman says its sizes may differ slightly from standard US ring sizes. |
| Weight and thickness | 3.3 to 4.8 g depending on size. 2.65 mm thick (varies by size). |
| Dimensions | It's 2.65 mm thick, though thickness varies by size. It weighs 3.3 to 4.8 g depending on size. Ultrahuman doesn't state band width or per-size inner diameter on the pages checked. |
| Materials | The ring is titanium with a PVD coating, plus epoxy and polycarbonate. Ultrahuman says the inner surface is hypoallergenic plastic and titanium. The charging case is aluminum, stainless steel and plastic. |
Before you buy
InstallationNo installation
No installation. It pairs over Bluetooth (BLE 5.3) with the Ultrahuman app, which is on the App Store and Google Play. In the box are the ring, the Ring PRO Charger and a 1 m USB-C to USB-C cable. Ring PRO charges only on the PRO Charger or PRO Charging Case, not on a Ring AIR charger. Before you order, Ultrahuman offers a free sizing kit with plastic sizers in sizes 5 to 14.
WarrantyA 12-month limited warranty runs from delivery and covers defects…
A 12-month limited warranty runs from delivery and covers defects in materials and workmanship. It's valid only in the country of purchase. The Terms of Sale, which don't name Ring PRO, exclude consumable parts such as batteries or protective coatings unless a defect caused the failure. They also exclude accidents, misuse and normal wear and tear. Cosmetic damage such as scratches and dents isn't covered unless a defect caused it. Upgrading through trade-in resets the warranty. Optional UltrahumanX coverage costs $36 for 1 year, with accidental damage protection and priority care. The $54 plan for 2 years adds theft and loss protection and what Ultrahuman calls weight loss insurance.
ReturnsIf you're not completely satisfied, you can return it within 30 days of delivery
If you're not completely satisfied, you can return it within 30 days of delivery. Send it back in the original packaging with all original accessories, including the charger. The Ring PRO FAQ and the Smart Rings Terms of Sale both say return shipping is free. No restocking fee is stated. The Terms of Sale list these return terms under the Ring AIR heading, and the FAQ applies them to Ring PRO.
More about this assessment
Ultrahuman Ring PRO is a titanium smart ring that sells for $479 on Ultrahuman's US store, with the PRO Charging Case included. Ultrahuman says there are no recurring subscription fees for accessing your data. It rates the battery at up to 15 days, or up to 45 days with the case. The ring comes in whole sizes 5 to 14 and is water resistant to 100 m. The catch is that some features are paid PowerPlugs, and the Ring PRO FAQ gives no accuracy figures. Ultrahuman also says Ring PRO isn't a medical device.
Strengths on paper
- No required subscription, and the $479 price includes the PRO Charging Case
- Battery rated for up to 15 days (up to 45 days with the case), with a full charge in about 2.5 hours
- Up to 250 days of data storage, with up to a year of ring data backed up on the case
- Titanium ring with water resistance to 100 m (328 ft)
- 30-day return window with free return shipping, per the Ring PRO FAQ and Terms of Sale
Limitations
- You pay the full cost upfront, and some features are sold separately as paid PowerPlugs
- The 12-month limited warranty doesn't cover batteries unless a defect caused the failure, and accidental damage cover costs extra through UltrahumanX (theft and loss cover needs the two-year plan)
- No Ring PRO accuracy figures on the pages checked, though the FAQ says its metrics are benchmarked against industry-leading fitness wearables
- Thicker and heavier than Ring AIR: 2.65 mm and 3.3 to 4.8 g, against 2.4 mm and 2.4 g for the AIR on Ultrahuman's comparison page
- Needs its own PRO Charger or case, since a Ring AIR charger won't work
What it costs to own.
Adjust the assumptions for your use. Missing costs stay unknown.
PLAN YOUR OWNERSHIP COSTS
What will it cost to own?
Change the assumptions to fit your use. Leave an unknown cost blank. Add water, subscriptions, cleaning, shipping and taxes if they apply. Use average operating power, not the maximum rating.
3-year known subtotal
$479.00Incomplete: energy use. This is not the full ownership cost.
Energy component: Unknown
Purchase + installation + years × (annual consumables + annual other) + watts/1000 × hours/day × 365 × years × $/kWh. Annualized allowances, not an exact replacement schedule. Excludes taxes, shipping, finance and resale unless entered.Replacement parts & cost assumptions
No scheduled consumable is listed. That does not mean zero maintenance or repair costs.
- Ultrahuman says there are no recurring subscription fees for accessing your data, so other annual costs are $0. The three-year estimate is the $479 purchase price, before tax and shipping.
- The estimate leaves out optional PowerPlugs and UltrahumanX coverage. The Cardio Adaptability PowerPlug is $24 for 1 year or $38 for 2 years. Cycle & Ovulation Pro is $39 for 1 year or $69 for 2 years. UltrahumanX is $36 for 1 year or $54 for 2 years. If you add any of them, add those costs too. The pages checked don't state renewal prices after the first term.
- Ultrahuman lists no replaceable parts or refills, so annual consumables are $0. That doesn't mean battery wear, a lost ring or out-of-warranty repair cost nothing. Ultrahuman doesn't state the charger's power draw, so energy is unknown.
- The US page says the ring is HSA/FSA eligible. Any tax saving isn't deducted from the estimate.
Evidence & sources.
How accurate are sleep trackers? Our evidence review grades the research as Moderate. That grade is about the claim, not about this product.
- Manufacturer claimPrice, finishes, sizes, sensors, battery life, storage, dimensions, materials, water resistance and the no-subscription statement all come from Ultrahuman's own pages.124 Not independent testing.
- Manufacturer claimUltrahuman's Ring PRO FAQ says the ring isn't classified as a medical device. It says the ring is intended to support a healthy lifestyle, not for medical use.2 This is Ultrahuman's own statement of its regulatory position. The pages checked claim no FDA clearance.
- Manufacturer claimThe FAQ says Ring PRO's metrics are benchmarked against industry-leading fitness wearables. It gives no accuracy figures and names no study.2 No independent Ring PRO validation study was reviewed for this review. Sleep, heart-rate and temperature accuracy for this model remain unconfirmed.
Sources (4)
- Ultrahuman Ring PRO US buy page Ultrahuman · manufacturer · checked Oct 13, 2026
- Ring PRO FAQ Ultrahuman · manufacturer · checked Oct 13, 2026
- Smart Rings Terms of Sale Ultrahuman · manufacturer · checked Oct 13, 2026
- Compare Ring PRO vs Ring AIR Ultrahuman · manufacturer · checked Oct 13, 2026
Other options.
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Samsung
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Oura
Oura Ring 4
Oura's previous-generation smart ring, with the membership billed separately
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Compare with this one →About this review. The facts on this page come from manufacturer pages, checked Oct 13, 2026. The sources are listed above.
Our editorial policy →