The Oura Ring does not measure blood pressure

The Oura Ring tracks heart rate, heart rate variability, skin temperature, sleep stages, and activity — but it has no sensor for blood pressure. Blood pressure requires measuring the force of blood pushing against artery walls, which needs either a cuff that inflates around your arm or specialized optical sensors that the Oura Ring does not have. The ring can tell you when your heart is beating faster or slower, but that is different from knowing how hard your blood is pushing.

If you need blood pressure readings, you will need a separate device: a traditional arm cuff, a wrist cuff, or a finger monitor. Some smartwatches like the Apple Watch Series 9 and Samsung Galaxy Watch 6 have added blood pressure measurement, but the Oura Ring remains focused on the metrics it can actually measure with the sensors built into a ring.

Key Takeaways

  • The Oura Ring measures heart rate, heart rate variability, skin temperature, sleep, and activity — not blood pressure.
  • Blood pressure measurement requires a cuff or specialized sensors that a ring cannot provide.
  • A faster heart rate does not mean higher blood pressure; the two are related but separate measurements.
  • If blood pressure tracking matters to you, you will need a separate blood pressure monitor alongside the Oura Ring.
  • Some smartwatches now offer blood pressure measurement, but the Oura Ring does not.

Why a ring cannot measure blood pressure

Blood pressure is the force exerted by blood on artery walls, measured in two numbers: systolic (pressure when the heart beats) and diastolic (pressure when the heart rests). To measure this, you need to either squeeze the artery to find the point where blood flow stops and starts again — which is what a blood pressure cuff does — or use optical sensors that can detect changes in blood vessel volume under the skin.

The Oura Ring uses optical sensors to measure heart rate by detecting blood flow through your finger. That tells the ring how many times your heart is beating per minute, but not how forcefully. Blood pressure depends on how much blood your heart pumps and how much resistance the arteries provide. A ring worn loosely on your finger cannot apply the pressure needed to measure this, and the optical technology in the ring is not designed for it.

Wrist-based blood pressure monitors exist, but they are less accurate than arm cuffs because the wrist is farther from the heart and the artery is smaller. Finger-based blood pressure monitors are even less common and less reliable. The engineering challenge of fitting blood pressure measurement into a ring is significant enough that no mainstream ring-based wearable has solved it yet.

What the Oura Ring measures instead

The Oura Ring tracks heart rate — the number of beats per minute — which it measures continuously throughout the day and night. It also measures heart rate variability (HRV), the variation in time between heartbeats. HRV is often used as a marker of stress and recovery; higher variability typically suggests your nervous system is in a more relaxed state.

The ring measures skin temperature on your finger, which can shift slightly with illness, stress, or hormonal changes. It tracks sleep stages — light, deep, and REM sleep — using heart rate and movement patterns. It also counts activity and exercise based on movement and heart rate elevation.

These metrics can give you a picture of your overall health trends, but they are not a substitute for medical measurements. If your doctor has told you to monitor blood pressure, the Oura Ring cannot do that job.

How heart rate and blood pressure are related but different

Heart rate and blood pressure often move together — when you exercise, both usually go up — but they measure different things. Heart rate is how fast your heart is beating. Blood pressure is how hard the blood is pushing. You can have a high heart rate with normal blood pressure, or normal heart rate with high blood pressure.

Some people with high blood pressure have no symptoms and no way to know without measuring it. Others feel their heart racing but have normal blood pressure. The Oura Ring will show you when your heart rate is elevated, which might prompt you to check your blood pressure separately, but it cannot replace that check.

When you should use a separate blood pressure monitor

If your doctor has diagnosed you with high blood pressure or asked you to monitor it, you need a blood pressure monitor — not a heart rate tracker. If you have a family history of high blood pressure, are over 40, or have other risk factors, regular blood pressure checks are part of standard health screening. Your doctor's office can measure it, or you can use a home monitor to track trends between visits.

Arm cuff monitors are the most accurate for home use and are what most doctors recommend. Wrist cuff monitors are less reliable but more portable. Finger monitors are the least reliable. All of them are more accurate than trying to infer blood pressure from heart rate data.

If you want both heart rate tracking and blood pressure monitoring, you can use the Oura Ring for the former and a separate blood pressure cuff for the latter. Some people keep a log of both to share with their doctor.

What Oura says about blood pressure

Oura's official product specifications do not list blood pressure as a measured metric. The company has focused the ring on metrics that optical sensors in a ring can reliably measure: heart rate, HRV, skin temperature, and movement. Oura has not announced plans to add blood pressure measurement to the ring.

Other wearable companies have taken different approaches. Apple added blood pressure measurement to the Apple Watch Series 9 in 2023, though it requires initial calibration with a traditional cuff and is not intended to replace clinical measurement. Samsung added it to the Galaxy Watch 6. These are smartwatches with more space for sensors than a ring has, and even then, the feature comes with caveats about accuracy.

Frequently Asked Questions

Can I use the Oura Ring's heart rate data to estimate my blood pressure?

No. While heart rate and blood pressure are related, you cannot reliably estimate one from the other. Two people with the same heart rate can have very different blood pressures. If you need to know your blood pressure, measure it directly with a blood pressure monitor.

Is the Oura Ring useful if I have high blood pressure?

Yes, for tracking heart rate and recovery trends, but not for measuring blood pressure itself. The ring can show you how your heart rate responds to stress or exercise, which might be useful information to discuss with your doctor alongside your blood pressure readings from a separate monitor.

Will Oura add blood pressure measurement in a future version?

Oura has not announced this. The technical challenges of fitting blood pressure measurement into a ring are significant. If blood pressure tracking is essential to you, a separate monitor is the reliable choice.

What blood pressure monitor should I use instead?

An arm cuff monitor is most accurate and is what doctors recommend for home monitoring. Wrist cuffs are less accurate but more portable. Finger monitors are the least reliable. Your doctor can recommend a specific model or tell you what type is best for your situation.

Can I wear the Oura Ring and a blood pressure monitor at the same time?

Yes. Many people wear the Oura Ring daily for continuous heart rate and sleep tracking, then use a separate blood pressure monitor once or twice a day or as their doctor recommends. The two devices measure different things and do not interfere with each other.