Device hub · Fitness rings · Desk research

Ultrahuman Ring AIR

AIR is the leftover lightweight Ultrahuman: 4–6 days, ~2.4–2.45 mm, 2.4 g, sizes 5–14, no mandatory core-data sub on the current PRO FAQ pattern.

Disclosure: Affiliate programs are not enrolled yet. See Affiliate disclosure. This page is manufacturer desk research, not a hands-on test — see Methodology.

In short

AIR is the leftover lightweight Ultrahuman: 4–6 days, ~2.4–2.45 mm, 2.4 g, sizes 5–14, no mandatory core-data sub on the current PRO FAQ pattern. Buy it if you want the lighter UH that is already in channel. Skip it if you want PRO’s 15-day / 250-day storage story — and re-check whether AIR checkout still exists in the US.

Who it is for

  • Buyers who want a light titanium ring and already accept a 4–6 day charge cadence.
  • People who refuse a mandatory membership and do not need PRO’s 15-day case.
  • Owners comparing R1 → AIR (FAQ: same features/battery; AIR thinner/lighter).
  • Shoppers who fit Ultrahuman sizes 5–14 (not Oura sizes — FAQ says they differ).

Who should skip it

  • Anyone who needs a guaranteed US add-to-cart for AIR today. /us/ring/buy/ showed PRO on 2026-09-19.
  • Buyers who want 15-day battery and 250-day storage — that is PRO.
  • People who need Oura’s membership sleep-research stack or a Galaxy phone lock-in.
  • Heavy lifting / metal-contact jobs — FAQ advises against wearing AIR during heavy weight training.

Key differentiators

  • FAQ: 2.45 mm / 2.4 g vs R1 2.8 mm / 3.6 g; same features and battery as R1.
  • 4–6 days; wireless pad ~180 minutes (PRO compare table).
  • No mandatory core-data subscription on Ultrahuman’s current PRO FAQ pattern — confirm on any live AIR checkout.
  • 100 m water resistance (FAQ + compare table).

Caveats

  • US AIR storefront is the caveat. Treat AIR as leftover until a dedicated US buy URL shows AIR again.
  • Thickness 2.45 mm (FAQ) vs 2.4 mm (PRO compare). We keep both; we do not invent 2.45–2.8 mm unless an OEM page still says that range.
  • 2024 FAQ trade-in dollar amounts and ship-in-a-month language are stale — omit or date them.
  • No hands-on testing.

Ring-category specs

Same rows on every ring page (Oura, Ultrahuman, RingConn, Galaxy Ring, Circular).

Ultrahuman Ring AIR — key specs
AttributeValueSource / note
MaterialsTitanium + PVD (PRO compare). FAQ: titanium with tungsten-carbide coating. Inner: hypoallergenic plastic (compare).AIR FAQ; US PRO compare table
WidthNot publishedAIR FAQ; US PRO buy compare
Thickness2.45 mm (FAQ, 2024-06-11) / 2.4 mm (PRO compare table, 2026-09-19)AIR FAQ; US PRO compareCite the page; do not average.
Weight2.4 g (FAQ and PRO compare). FAQ also states R1 is 3.6 g.AIR FAQ; US PRO compare
Sizes5–14; R1 kit works; not the same as Oura sizing (FAQ)AIR FAQ
FinishesRaw Titanium, Aster Black, Matte Grey, Bionic Gold, Space Silver (PRO compare / FAQ)AIR FAQ; US PRO compare
Battery (OEM)4–6 days depending on usageAIR FAQ; US PRO compare
Charging (OEM)Open wireless charging pad; about 180 minutes 0–100% (PRO compare)US PRO buy compare table
Charging case (OEM)No enclosed travel case on the AIR column (N/A case battery / data backup)US PRO compare
Water resistance100 m / 328 ft. FAQ: swimming, showering, scuba; avoid continuous submersion over 30 minutes.AIR FAQ; US PRO compare
SensorsPPG, temperature, 6-axis IMU; single-core processor (PRO compare)US PRO compare
Sleep trackingDaily sleep and recovery insights (PRO compare blurb). FAQ: same app ring-tab features as R1.AIR FAQ; US PRO compare
Activity / fitnessSame feature claim as R1 per FAQ; not a GNSS sports watchAIR FAQ
AppUltrahuman App (same ring tab as R1 per FAQ)AIR FAQ
Subscription / data accessPRO US FAQ pattern: no recurring fee for core data. Confirm on any live AIR checkout. Optional PowerPlugs are a PRO-page extra, not proven AIR-mandatory.US PRO buy FAQ (accessed 2026-09-19)
Phone platformsConsumer iOS / Android app. Exact OS floors not on the fetched FAQ or PRO compare table.AIR FAQ; US PRO buy (accessed 2026-09-19)
WirelessBluetooth Low Energy (compare table)US PRO compare
On-ring storage4 days of data (internal flash only)US PRO compare
US price (dated)$349 on the US PRO vs AIR table, 2026-09-19ultrahuman.com/us/ring-pro/buy/
Price bandMid leftover, one-time core data (verify checkout)Derived from dated PRO compare
Announced2nd gen; FAQ published 11 June 2024AIR FAQ
AvailabilityLeftover / channel. Dedicated US AIR buy URL rendered PRO on 2026-09-19. Compare table still lists AIR at $349.US /ring/buy/ and /ring-pro/buy/

Ultrahuman Ring AIR extras

Unique to this line or SKU. Other rings keep the first table aligned and swap this extras list.

Ultrahuman Ring AIR extras
AttributeValueSource / note
Versus Ultrahuman R1FAQ: AIR 2.45 mm / 2.4 g vs R1 2.8 mm / 3.6 g; same features, accuracy, and battery. R1 hub: /rings/ultrahuman-ring-r1/.AIR FAQ
Regional width caveatSome non-US Ultrahuman AIR buy pages list 8.1 mm width and a 2.45–2.8 mm / 2.4–3.6 g flatten that mixes AIR with R1. This hub stays on the US PRO compare + 2024 FAQ. Do not import those ranges as US AIR cells.US PRO compare; AIR FAQ; regional buy pages checked 2026-09-19
US storefront caveathttps://www.ultrahuman.com/us/ring/buy/ showed Ring PRO on 2026-09-19. Do not write “buy AIR at that URL” without re-checking.US ring buy URL
Sizing vs OuraFAQ: Ultrahuman sizing is not Oura sizing. Use an Ultrahuman kit.AIR FAQ

Overview

Ring AIR is the leftover lightweight Ultrahuman: ~2.4–2.45 mm, 2.4 g, 4–6 days, sizes 5–14, 100 m. The US AIR URL now points at PRO — leftover, verify checkout.

Sensors, sleep, and activity

PPG, temperature, 6-axis IMU. FAQ: same app features as R1. Not a GPS watch.

Battery and charging

4–6 days. Wireless pad ~180 minutes. Four days of onboard flash. No PRO case column.

App, subscription, and platforms

Ultrahuman App. Core data is one-time on the current PRO FAQ pattern. Re-verify if you find a live AIR cart.

Price and US availability

$349 on the PRO compare table, 2026-09-19. Do not send readers to /us/ring/buy/ for AIR without checking.

Sources

Frequently asked questions

Can I still buy AIR in the US?

Maybe as leftover channel stock — not via a clean dedicated US URL on write day. /us/ring/buy/ rendered PRO. Re-open Ultrahuman before promising checkout.

Is AIR just a thinner R1?

That is Ultrahuman’s own FAQ: same features, accuracy, and battery; AIR is 2.45 mm / 2.4 g vs R1 2.8 mm / 3.6 g.

Does AIR need a subscription?

Ultrahuman’s current PRO FAQ says no recurring fee for core data. Confirm the same sentence on any live AIR checkout. PowerPlugs are optional extras on the PRO page.

Will my Oura size work?

No. The FAQ says Ultrahuman sizing differs from Oura. Use an Ultrahuman kit (or an R1 kit).

Official product page: Ultrahuman Ring AIR. Specs: Ultrahuman Ring AIR specs.