Ōura Ring 4 — Titanium · 2.2g · 0.0 mm gap

Your body has been telling you everything. Ōura listens.

A razor-thin titanium ring on your finger. 50+ biosignals, sampled 250 times a second, read into one quiet voice.

2.2g
Titanium
8d
Battery
250Hz
Sample rate
50+
Signals
24H · LAST FULL DAY LIVE · 58 BPM
Chapter 01 · Sleep

The first place
healing happens.

Every stage of last night, mapped to the minute. REM where it should be. Deep where it shouldn't be cut short. Heart rate falling at the right hour. Body temperature finding its trough at 4:13 AM.

8h 12m
Total
87
Sleep score
−0.32°C
Body temp
Chapter 02 · Recovery

A readiness score
that reads you.

HRV, body temperature, respiratory rate, prior strain — woven into a single number that tells you whether today is for pushing or for softness. Eight weeks of mornings shown to the right.

87
Today
82
28-day avg
+9ms
HRV trend
87
READY
28 DAYS · M T W T F S S
LOWRESTFUL RESTORED PRIMED PEAK
Chapter 03 · Rhythm

Cycles, not
spikes.

Your body keeps time — circadian, hormonal, seasonal. Ōura draws the curves you can't feel, the ones that decide how Tuesday goes. For women, an unmatched cycle map. For everyone, the rest of you.

28d
Cycle
Day 14
Ovulatory
36.7°C
BBT
Chapter 04 · Longevity

Don't just live longer.
Live longer awake.

Cardio age, metabolic age, the slow numbers that decide the next thirty years. The black line is the population. The copper line is you — seven years younger, and pulling away.

34yr
Cardio age
−7yr
vs chrono
47ml
VO₂ max
Population You

Made for you.
Worn for your life.

Personalized from night 1

Membership
that earns
its keep.

$5.99/month. Unlimited insights, science-grade updates, three new health features a year. Cancel anytime — the ring is yours regardless.

HSA · FSA eligible · Affirm available

Ōura · Member04 / 38
Listen
longer.
Since 2026