# Ultrahuman Ring AIR
The Ultrahuman Ring AIR is the measurement layer for your longevity
routine: a lightweight titanium smart ring that continuously tracks your
sleep, recovery, heart rate variability and skin temperature, so you can
see how your body responds to your habits and your supplements. AVEA
partnered with Ultrahuman to bring it into the stack, because you can’t
optimise what you don’t measure. It needs no subscription.
## Why it is different
It turns your longevity routine from guesswork into something you can
see. Worn on the finger rather than the wrist, it weighs as little as
2.4 grams and is notch-less and smooth inside, so it’s comfortable
enough to wear overnight for accurate sleep tracking, where a bulky
watch isn’t. Unlike the main subscription-based smart rings, it gives
you full access to every feature and insight with no monthly fee. And
paired with an AVEA protocol, it becomes a feedback loop: when your
Sleep Index climbs or your resting heart rate steadies after you start a
supplement, you can see the change rather than guess at it.
## What it helps with
– Understanding your sleep architecture (deep, light and REM)
– Reading your daily recovery and readiness to train
– Tracking HRV, resting heart rate and cardiovascular fitness over time
– Seeing how your habits and supplements affect your body, measurably
## Key specifications
– Aerospace-grade titanium shell with scratch-resistant tungsten carbide
> coating; hypoallergenic inner surface
– Weight 2.4 to 3.6g depending on size; 2.45 to 2.8mm thick, notch-less
– Sensors: optical PPG (heart rate, HRV, blood oxygen), medical-grade
> skin temperature, 6-axis motion
– Battery up to 6 days per charge; full charge in about 180 minutes
– Water-resistant to 100 metres
– Bluetooth 5, syncs with Apple Health and Android Health Connect
– No subscription; six finishes (Bionic Gold, Aster Black, Matte Grey,
> Space Silver, Raw Titanium, Brushed)
## How it works
Three sensors work together to read your physiology from the finger,
where blood flow is easy to measure. The optical PPG sensor reads heart
rate, HRV and blood oxygen; a medical-grade sensor tracks small shifts
in skin temperature that signal recovery, illness or hormonal changes;
and a 6-axis motion sensor captures movement and sleep. The ring runs a
14-day calibration when you first wear it, building your personal
baseline so that later readings are judged against your own normal
rather than a population average, which is what makes its alerts
meaningful rather than noisy. Ultrahuman’s app turns the raw signals
into a Sleep Index, a Recovery Score and long-term trends, and its
PowerPlugs platform adds optional tracking for things like circadian
rhythm, VO₂ max and ovulation. In Ultrahuman’s own validation, the ring
showed 99.5% heart-rate agreement with the Apple Watch, 95%
sleep-detection accuracy against clinical sleep-study equipment, and
skin-temperature readings within 0.4°C of a gold-standard sensor. These
are device-accuracy figures from Ultrahuman, not medical claims; the
Ring AIR is a tracking tool, not a medical device.
## How to use
Order through AVEA and Ultrahuman sends a sizing kit first, so your
final ring fits correctly before it ships. Wear it continuously, day and
night, and charge it for a few minutes every few days. Give it the
14-day calibration window before reading too much into the scores;
meaningful patterns emerge from around three weeks onward.
## Works well with
A natural companion to any AVEA routine, since it shows the effect of
what you’re taking. It pairs especially closely with Sereniser, where
you can watch deep and REM sleep respond, and with NMN and the Booster
for recovery and resting-heart-rate trends. Its sister device, the
Ultrahuman M1 CGM, adds real-time glucose to the same picture.
## Good to know
Made by Ultrahuman and distributed by AVEA, who provides the
longevity-protocol context for the data it captures; the hardware, app
and data support come through Ultrahuman’s ecosystem. One-off purchase,
no subscription. A sizing kit ships before the ring itself.
## Schema description
The Ultrahuman Ring AIR is a lightweight titanium smart ring distributed
by AVEA that continuously tracks sleep, recovery, HRV, resting heart
rate and skin temperature, with no subscription fee. It acts as the
measurement layer for an AVEA longevity routine, showing how the body
responds to habits and supplements. Made by Ultrahuman; one-off
purchase.
## SEO meta description
Ultrahuman Ring AIR: a near-weightless titanium smart ring tracking
sleep, recovery, HRV and temperature, no subscription. The measurement
layer for your AVEA longevity routine. Up to 6 days battery,
water-resistant to 100m.