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Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →Oura Ring 4 does not measure or display blood pressure in mmHg. Its Blood Pressure Signals and Nighttime BP features look for overnight patterns, while a validated upper-arm cuff is the way to get an actual blood-pressure reading. You can log cuff readings in Oura, but they are a different kind of information from the ring’s nighttime patterns.
Does Oura Ring 4 measure blood pressure?
No. The ring does not take a cuffless blood-pressure measurement or report a value such as 120/80 mmHg. Oura Ring 4 uses green and infrared photoplethysmography (PPG) sensors to measure heart rate and heart-rate variability around the clock, and respiration rate during sleep. Its listed Heart Health features include Cardiovascular Age and Cardio Capacity, not a blood-pressure reading. Oura Ring 4 specifications and Health Radar guidance distinguish these signals from an actual blood-pressure measurement.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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OURA Ring 4 Smart Ring - Silver - Size 9 | $349.00 | Buy on Amazon |
| 2 |
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OURA Ring 4 Smart Ring - Stealth - Size 11 | $349.00 | Buy on Amazon |
| 3 |
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OURA Ring 4 Smart Ring - Silver - Size 8 | $349.00 | Buy on Amazon |
| 4 |
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10 Pack Ring Cover Compatible with Oura Ring Gen 4/4 Ceramic/Gen 3 | $6.99 | Buy on Amazon |
| 5 |
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OURA Ring 4 Smart Ring - Silver - Size 10 | $349.00 | Buy on Amazon |
The distinction matters: Oura’s blood-pressure-related features describe patterns inferred from nighttime data; they do not turn the ring into a blood-pressure monitor.
What the blood-pressure-related features do
Blood Pressure Signals
Blood Pressure Signals is part of Health Radar. It analyzes nighttime PPG patterns across a 30-day assessment window and may surface a result if it detects a pattern worth attention. Oura says it needs at least 15 nights of data to establish a baseline. If it has not detected a pattern to report, the feature can remain in an actively monitoring state without showing a result. It does not provide blood-pressure values in mmHg. Oura’s Health Radar support page explains its operation and limits.
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- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping
Nighttime BP
Nighttime BP summarizes overnight dipping patterns across an average of 30 nights. It shows patterns and trends rather than absolute pressure values. Oura describes four categories: typical dipping, a 10–20% drop during sleep; reduced dipping, less than 10%; pronounced dipping, more than 20%; and rising, meaning no dip or a negative dip. These are Oura’s feature categories, not a blood-pressure reading or a diagnosis. Oura recommends looking at the 30-night trend because an individual night can vary. Heart Health Hub guidance describes these categories.
Cuff Readings
Cuff Readings is a place in the Heart Health Hub to record actual readings taken with a separate monitor. Readings can be entered manually or imported from Apple Health or Android Health Connect. Oura recommends a validated upper-arm blood-pressure cuff for the most accurate readings; its guidance does not endorse a particular brand or model. Oura’s Heart Health Hub documentation covers the logging options.
Rank #2
- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping
Ring patterns and cuff readings are different kinds of information
| What you are comparing | Blood Pressure Signals or Nighttime BP | Cuff reading |
|---|---|---|
| Measurement | Nighttime PPG patterns and overnight dipping trends | A blood-pressure measurement taken with a cuff |
| Output | A pattern, status, or trend; no mmHg value | A numerical reading from the cuff, which can be logged in Oura |
| Timing | Passive overnight data assessed over time | An individual measurement session |
| Purpose | Wellness context about patterns | Recording an actual blood-pressure reading |
Oura says the two perspectives are complementary, but they are not the same measurement and may not align. Logged cuff readings are labeled in the app using American Heart Association ranges; Oura says those entries do not affect Blood Pressure Signals, Nighttime BP, or an Oura score. Heart Health Hub explains both the categories and how readings are handled.
Who can use these features?
Availability depends on location, ring generation, and membership. Oura’s current support pages list Blood Pressure Signals, Nighttime BP, and Cuff Readings in the United States, India, and the United Arab Emirates. The Health Radar page says it is rolling out to Australia, Canada, the European Union, Mexico, New Zealand, Saudi Arabia, South Korea, and the United Kingdom. Check the Oura app and current support information for your location rather than assuming the features are available everywhere. Health Radar availability and Heart Health Hub availability provide the current regional detail.
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Rank #3
- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping
Health Radar requires an Oura Gen3 or later ring and an active membership; it is not available on Gen2 or older. Oura’s May 2026 announcement said a broader rollout would begin in October 2026, but the live support page is the more useful reference for current access. Oura’s Health Radar announcement provides the rollout context.
Limits and safety
Oura says Blood Pressure Signals is for wellness use and cannot diagnose or rule out a condition. It recommends confirming patterns with a blood-pressure cuff and discussing concerns with a healthcare provider. The feature is automatically disabled for members using Pregnancy Insights, and Oura cautions that it may not be suitable for people who are pregnant or managing a heart condition. Oura’s Health Radar guidance sets out these limitations.
Rank #4
- 【Compatibility】The silicone ring cover compatible with Oura Ring Gen 4/4 Ceramic, Oura Ring Gen 3 Horizon/Heritage. It is available in a variety of sizes. Please choose S for size 4/5/6/7, M for size 8/9/10/11, L for 12/13/14/15. (Note: Ring is NOT included)
- 【Charging Hole Design】Specially design for charging without removing the cover. The ring cover is designed with a charging hole for the ring dimple. Align the hole of the ring protector with the ring dimple. You can charge your ring without any hassle of taking ring cover on and off.
- 【Anti-scratch】The silicone ring protector fully encases the smart ring for optimal protection. It is essential for protecting your Oura ring from scratches, dents while working out, doing chores, lifting weights, sporting events and daily wear.
- 【Comfortable & Skin-Friendly】The Oura ring cover is made from premium soft and odorless high quality silicone. It is comfortable & skin-friendly, breathable & washable, durable & elastic. It won't cause allergies or discomfort to your fingers.
- 【Multi Color Choice】Package includes many ring protectors in different colors. You can change the ring cover for your smart ring every day according to your mood or outfit. It only takes a few seconds to give your smart ring a new look.
What the Blood Pressure Profile Study was—and was not
Oura announced its Blood Pressure Profile Study in Oura Labs on December 17, 2025. It was research intended to help develop a possible future software feature, not a released update that made Ring 4 measure blood pressure. Eligibility was limited to certain US members using the English app, aged 22 or older, with Gen3 or newer hardware, plus additional exclusions. Oura’s current Oura Labs page says the study ended on August 12, 2026; participants may transfer cuff readings entered during the study into the Heart Health Hub. Oura’s study announcement and Oura Labs information describe its purpose and status.
Quick Recap
Best Value
- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
