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Ultrahuman Ring AIR
Get Ultrahuman Ring AIR if light weight matters more than battery: it's 2.4 grams and 2.4 to 2.45mm thick, with no recurring fee for core data.
Product images
Ultrahuman Ring AIR, from its Amazon listing.
Credit: Amazon.com (Associates Program). Amazon listing
Product image from the Amazon listing.
In short
Get Ultrahuman Ring AIR if light weight matters more than battery: it's 2.4 grams and 2.4 to 2.45mm thick, with no recurring fee for core data. The catch: 4 to 6 days per charge, 4 days of on-ring storage and an open charging pad, not a case. Ultrahuman lists it at $349, but its US ring page now sells Ring PRO, which lasts up to 15 days and stores 250 days of data.
Who it is for
- People who want a light ring and don't mind charging every 4 to 6 days. AIR weighs 2.4 grams.
- R1 owners who want the same features in a thinner, lighter ring. Ultrahuman says AIR matches R1's features, accuracy and battery.
- Anyone avoiding a membership. Ultrahuman's current FAQ says core ring data carries no recurring fee.
Who should skip it
- US shoppers who want to order direct. Ultrahuman's US ring page now opens Ring PRO, with no AIR checkout.
- Anyone who'd rather charge and sync less often. That's Ring PRO, which also comes with a charging case.
- Heavy lifters. Ultrahuman advises against wearing AIR during heavy weight training.
What sets it apart
- Lighter and thinner than R1: 2.4 grams and 2.4 to 2.45mm, against 3.6 grams and 2.8mm.
- Titanium with a tungsten-carbide coating, in Raw Titanium, Aster Black, Matte Grey, Bionic Gold and Space Silver.
- Water resistant to 100 m (328 ft).
Caveats
- Charging is slow: about 180 minutes from 0 to 100% on an open pad, with no case for top-ups away from it.
- The ring holds only 4 days of data, so it needs regular syncing with your phone.
Key specs
In the same order on every ring page, so you can compare models.
| Spec | Value | Source and notes |
|---|---|---|
| Materials | Titanium with PVD coating (comparison table) or tungsten-carbide coating (FAQ); hypoallergenic plastic inside | Ultrahuman AIR FAQ; US Ring PRO comparison table |
| Thickness | 2.45 mm (2024 FAQ); 2.4 mm (2026 comparison table) | Ultrahuman AIR FAQ; US Ring PRO comparison table |
| Weight | 2.4 g (R1: 3.6 g) | Ultrahuman AIR FAQ; US Ring PRO comparison table |
| Sizes | 5–14; an R1 sizing kit works; not Oura sizing | Ultrahuman AIR FAQ |
| Finishes | Raw Titanium, Aster Black, Matte Grey, Bionic Gold, Space Silver | Ultrahuman AIR FAQ; US Ring PRO comparison table |
| Battery | 4–6 days, depending on use | Ultrahuman AIR FAQ; US Ring PRO comparison table |
| Charging | Open wireless charging pad; about 180 minutes from 0 to 100% | US Ring PRO comparison table |
| Charging case | None; no case battery or data backup | US Ring PRO comparison table |
| Water resistance | 100 m (328 ft); fine for swimming, showering and scuba, but avoid more than 30 minutes of continuous submersion | Ultrahuman AIR FAQ; US Ring PRO comparison table |
| Sensors | PPG, temperature sensor, 6-axis IMU; single-core processor | US Ring PRO comparison table |
| Sleep tracking | Daily sleep and recovery insights; the same ring features as R1 | Ultrahuman AIR FAQ; US Ring PRO comparison table |
| Activity / fitness | Same activity features as R1, Ultrahuman says | Ultrahuman AIR FAQ |
| App | Ultrahuman app, with the same ring tab as R1 | Ultrahuman AIR FAQ |
| Subscription / data access | No recurring fee for core data, per the FAQ on Ultrahuman's US Ring PRO page; optional paid PowerPlugs are sold there, and nothing says AIR needs them | Ultrahuman US Ring PRO FAQ |
| Phone platforms | iOS and Android app; minimum versions not published | Ultrahuman AIR FAQ; US Ring PRO page |
| Wireless | Bluetooth Low Energy | US Ring PRO comparison table |
| On-ring storage | 4 days of data (internal flash) | US Ring PRO comparison table |
| US price | $349 on Ultrahuman's US comparison table, 19 September 2026 | Ultrahuman US Ring PRO page |
| Price band | Mid-range, no recurring core-data fee | Based on Ultrahuman's $349 listing |
| Announced | 2nd generation; Ultrahuman's AIR FAQ was published 11 June 2024 | Ultrahuman AIR FAQ |
| Availability | No US AIR checkout on 19 September 2026 (the US ring page showed Ring PRO); still $349 in Ultrahuman's comparison table | Ultrahuman US ring and Ring PRO pages |
Ultrahuman Ring AIR extras
Specs only this model has.
| Spec | Value | Source and notes |
|---|---|---|
| Compared with R1 | AIR: 2.45 mm and 2.4 g. R1: 2.8 mm and 3.6 g. Same features, accuracy and battery, Ultrahuman says. | Ultrahuman AIR FAQ |
| Other regions | Some non-US Ultrahuman pages list an 8.1 mm width and ranges of 2.45–2.8 mm and 2.4–3.6 g, which mix AIR with R1 figures; they aren't AIR's US specs | Ultrahuman regional pages; US Ring PRO comparison table; AIR FAQ |
| US store | Ultrahuman's US ring page showed Ring PRO, not AIR, on 19 September 2026 | https://www.ultrahuman.com/us/ring/buy/ |
| Sizing compared with Oura | Ultrahuman sizes don't match Oura's; use an Ultrahuman sizing kit | Ultrahuman AIR FAQ |
AIR or Ring PRO?
AIR is Ultrahuman’s second-generation ring, the thinner, lighter follow-up to R1. Ring PRO is the newer model.
PRO runs up to 15 days on a charge, stores up to 250 days of data and comes with a charging case, so it suits anyone tired of charging every few days. AIR is the pick if you want the lighter ring and can find one. Ultrahuman Ring AIR vs Ring PRO goes through both in detail.
Thickness and weight
Ultrahuman gives AIR two thicknesses: 2.45mm in its 2024 FAQ and 2.4mm in its current comparison table, a difference of 0.05mm. Both put the weight at 2.4 grams.
Some non-US Ultrahuman pages list an 8.1mm width and broader thickness and weight ranges, but those mix in R1’s figures and aren’t AIR’s own.
What it tracks
Ultrahuman says AIR does everything R1 does, with the same ring tab in the Ultrahuman app. Its PPG and temperature sensors and 6-axis IMU feed daily sleep and recovery insights, worked out on a single-core processor.
Price
Ultrahuman’s US comparison table listed AIR at $349 on 19 September 2026, while its US ring page sold Ring PRO instead. The trade-in amounts and shipping times in Ultrahuman’s AIR FAQ date from 2024 and may not apply now. If you find an AIR elsewhere, such as on Amazon, weigh its price against PRO’s longer battery and storage.
Sources
- Amazon product listing — accessed 2026-09-20
- Ultrahuman — Ring AIR FAQs — accessed 2026-09-19
- Ultrahuman — US Ring PRO buy page, with the PRO and AIR comparison — accessed 2026-09-19
Frequently asked questions
Do I pay a subscription for Ring AIR's data?
No, not for core data. Ultrahuman's current FAQ says there's no recurring fee; PowerPlugs are optional paid extras sold on its Ring PRO page.
Will my Oura size fit AIR?
No. Ultrahuman says its sizes differ from Oura's, so use an Ultrahuman or R1 sizing kit.
Does AIR work with my phone?
Yes, with the Ultrahuman app on iPhone and Android. Ultrahuman doesn't give minimum OS versions for AIR.
Can I swim with Ring AIR?
Yes. It's water resistant to 100 m, and Ultrahuman lists swimming, showering and scuba, but it advises against more than 30 minutes of continuous submersion.
Official product page: Ultrahuman Ring AIR. Specs: Ultrahuman Ring AIR specs.