Oura Ring 4: Features, Specs & What’s New — Complete 2026 Guide

By myringsizecalculator.com  ·  Updated January 2026  ·  15 min read

Oura Ring Gen 4 — 10 LEDs, 18 signal pathways, and the biggest sensor upgrade since the original ring.

⚡ Quick Answer: What Are the New Features in Oura Ring 4? The Oura Ring Gen 4 (released October 2024) introduced Smart Sensing 2.0 — a complete sensor redesign moving from 6 to 18 signal pathways and from 4 to 10 LEDs. New Gen 4 exclusive features include Cardiovascular Age, VO2 Max estimate, improved skin tone accuracy for all Fitzpatrick classifications, and a USB-C charging dock. It ships in Heritage and Horizon designs across six colour finishes in sizes 6–13.

1. Oura Ring 4: Overview & Release Timeline

The Oura Ring Gen 4 is the fourth-generation smart health ring produced by Oura Health, a Finnish health technology company. It was officially announced and released on 15 October 2024, succeeding the Gen 3 which launched in November 2021. The Gen 4 represents the most significant sensor hardware upgrade in Oura’s history, with particular emphasis on measurement accuracy across diverse skin tones — a documented weakness of the Gen 3 that attracted significant criticism following independent audits in 2022–2023.

Oura Health was founded in 2013 in Oulu, Finland, and has grown to become the world’s leading smart ring health company, with over 2.5 million rings shipped globally and backing from investors including the NBA, Marc Benioff, and Peter Thiel’s Founders Fund. The company achieved profitability in 2024 before the Gen 4 launch.

Background: When Was the Oura Ring 4 Released? (Full Timeline)  |  Oura Ring Generations Hub  |  Wikipedia: Oura Health

2. Smart Sensing 2.0: The Core Upgrade Explained

Gen 3 vs. Gen 4: how Smart Sensing 2.0’s 18-pathway system compares to the previous 6-pathway design.

Smart Sensing 2.0 is the name Oura gives to the Gen 4’s completely redesigned optical biosensor system. It is not a marketing rebrand of the same hardware — it is a ground-up redesign of the LED array, photodetector configuration, and signal processing algorithms.

What Changed: From 6 to 18 Signal Pathways

A signal pathway in photoplethysmography (PPG) refers to a single LED-to-detector pair that captures one stream of optical data. The Gen 3 used 6 such pathways. The Gen 4 uses 18, achieved by increasing the LED count from 4 to 10 and multiplying the detector configurations.

The benefit is not simply ‘more data’ — it is better data through geometric redundancy. Human skin is optically non-uniform: blood vessels run at different depths, the fingertip has different vascularity than the finger base, and melanin concentration varies across individuals. By sampling from 18 independent geometric angles simultaneously, the Gen 4 can identify and discard corrupted signal pathways in real time, weighting the clean signals more heavily in its final measurement. This is why accuracy improves on darker skin tones — the system no longer depends on any single pathway that melanin absorption might degrade.

LED Breakdown: 10 LEDs Across Three Wavelengths

LED Type	Count	Wavelength	Primary Purpose	Gen 3 Equivalent
Green LEDs	6	520 nm	Heart rate, HRV, blood volume pulse	2 green LEDs
Red LEDs	2	660 nm	SpO2 (blood oxygen) — oxyhaemoglobin	None in Gen 3
Infrared LEDs	2	940 nm	SpO2 — deoxyhaemoglobin reference	None in Gen 3
Total	10	Three bands	Multi-parameter biometric sensing	4 LEDs total

Why Red and Infrared LEDs Matter

The Gen 3’s exclusive green LEDs were adequate for heart rate and HRV but limited for SpO2 accuracy. Accurate blood oxygen measurement requires comparing the absorption ratio of oxygenated haemoglobin (measured at 660 nm red light) against deoxygenated haemoglobin (measured at 940 nm infrared). The Gen 4’s red and infrared LEDs unlock genuinely accurate SpO2 — a meaningful improvement for overnight oxygen monitoring and sleep-disordered breathing flags.

Skin Tone Accuracy: The Real-World Impact

Independent research published in JAMA Dermatology and other journals has documented that PPG-based wearables systematically underperform on darker skin tones due to melanin’s optical absorption properties. Oura commissioned validation studies for the Gen 4 showing accuracy across all six Fitzpatrick skin type classifications — a meaningful step toward equitable health technology.

Technical deep dive: How Does the Oura Ring 4 Work? (Complete Sensor Guide)  |  Wikipedia: Photoplethysmography

3. Oura Ring 4 Full Specifications

Specification	Oura Ring Gen 4 Details
Release date	15 October 2024
Design variants	Heritage (flat-top) · Horizon (fully rounded dome)
Colours	Silver · Black · Gold · Stealth (matte black) · Rose Gold · Brushed Titanium (limited)
Sizes	6 through 13 — free sizing kit available at ouraring.com
Shell material	Grade 5 titanium (aircraft grade)
Coating	Diamond-like carbon (DLC) — PVD applied for Gold/Rose Gold finishes
Weight	4 g (size 6) to 6 g (size 13)
Ring width	7.9 mm — Heritage · 7.0 mm — Horizon
Ring thickness	2.88 mm — Heritage · 2.55 mm — Horizon
Water resistance	100 metres (10 ATM) — pool, ocean, hot tub safe
Battery life	Up to 8 days (5–6 days typical with regular syncing)
Charge time	~80 minutes from 0 to 100%
Charger	Magnetic USB-C dock (included) — USB-A adapter also in box
PPG sensor	18-pathway Smart Sensing 2.0 — 6 green + 2 red + 2 infrared LEDs
Accelerometer	3-axis accelerometer + gyroscope
Temperature sensor	NTC infrared thermistor (skin temperature deviation)
Connectivity	Bluetooth Low Energy (BLE) 5.1
Compatibility	iOS 16 or later · Android 11 or later
Storage	Up to 6 weeks of raw data stored on-ring
Membership	$5.99/month or $69.99/year — 1 month free with purchase
Price at launch	$299 (Silver/Black) · $349 (Gold/Rose Gold/Stealth) · $499+ (limited editions)
Warranty	1-year limited hardware warranty

Pricing note: Oura Ring Buying Guide — Pricing & Where to Buy  |  Best Oura Ring — Which Style to Choose

4. All New Features in Gen 4 vs. Gen 3

The Gen 4 introduced several features that are exclusive to the new hardware and cannot be added to Gen 3 devices via a software update. Here is a definitive comparison of what is new, improved, or unchanged.

Feature / Metric	Gen 3	Gen 4	Status
Smart Sensing system	6-pathway PPG	18-pathway Smart Sensing 2.0	UPGRADED
LED count	4 LEDs	10 LEDs	UPGRADED
SpO2 accuracy	Single-angle estimate	Multi-angle cross-referenced	UPGRADED
Skin tone accuracy	Limited (darker tones)	All Fitzpatrick types	UPGRADED
Cardiovascular Age	Not available	Available (Gen 4 only)	NEW
VO2 Max estimate	Not available	Available (Gen 4 only)	NEW
Charging port	USB-A magnetic dock	USB-C magnetic dock	UPGRADED
Battery life	4–7 days	Up to 8 days	IMPROVED
Ring thickness (Heritage)	2.55 mm	2.88 mm	CHANGED
Sleep Score	Available	Available — same algorithm	UNCHANGED
Readiness Score	Available	Available — same algorithm	UNCHANGED
HRV (RMSSD)	Available	Available — improved data	IMPROVED
Body temperature	Available	Available — same sensor	UNCHANGED
Cycle Insights	Available	Available — same feature	UNCHANGED
Pregnancy Mode	Available	Available — same feature	UNCHANGED
Stress & Resilience	Available (2023 launch)	Available — same feature	UNCHANGED
Price	$299–$399	$299–$349	REDUCED

Full upgrade analysis: Oura Ring Gen 3 vs Gen 4 vs Galaxy Ring — Complete Comparison  |  Oura Ring Gen 4 Review

5. Complete Health Metrics: What Does Oura Ring 4 Track?

Every health metric tracked by the Oura Ring Gen 4 — organised by category. Asterisked metrics are Gen 4 exclusive.

The Oura Ring Gen 4 tracks over 30 individual health metrics, organised into five core categories. Here is a complete reference of every metric the ring measures and reports.

Complete Metric List by Category

Category	Metric	How Measured	Availability
Sleep	Sleep Score (0–100)	Composite from all sleep metrics	Membership
Sleep	Total sleep time	Actigraphy + PPG	Membership
Sleep	Deep sleep (SWS)	Movement + HR pattern	Membership
Sleep	REM sleep	Movement + HR pattern	Membership
Sleep	Light sleep	Movement + HR pattern	Membership
Sleep	Sleep efficiency	Sleep vs. time in bed ratio	Membership
Sleep	Sleep latency	Time to fall asleep	Membership
Sleep	Sleep timing	Timing relative to ideal window	Membership
Heart & HRV	Resting heart rate	Overnight PPG average	Basic + Membership
Heart & HRV	Heart rate variability	RMSSD during lowest HR sleep period	Membership
Heart & HRV	Cardiovascular Age *	HRV + HR + activity model (Gen 4)	Membership
Heart & HRV	VO2 Max estimate *	HR + activity correlation (Gen 4)	Membership
Temperature	Temp deviation	NTC vs. personal baseline	Membership
SpO2	Blood oxygen saturation	Red + infrared LED ratio	Membership
Activity	Steps	Accelerometer	Basic
Activity	Active calories	HR + accel model	Basic
Activity	Total calories	BMR + active cals	Basic
Activity	MET minutes	Activity intensity model	Membership
Activity	Inactivity alerts	Accel sedentary detection	Membership
Activity	Workout auto-detection	HR + accel pattern	Membership
Recovery	Readiness Score (0–100)	Composite HRV, HR, sleep, activity	Membership
Recovery	Stress & Resilience	Daytime HRV monitoring	Membership
Recovery	Breathing regularity	Respiratory rate variability	Membership
Women’s	Cycle Insights	BBT + HR + calendar	Membership
Women’s	Pregnancy Mode	Algorithm adjusted for pregnancy	Membership

* Cardiovascular Age and VO2 Max estimate are Gen 4 exclusive features. They are not available on Gen 3 hardware regardless of software update.

Full features guide: Oura Ring Features & Health Tracking Hub  |  Benefits of the Oura Ring 4

6. Sleep Tracking Features in Depth

Sleep tracking is the feature that defines the Oura Ring’s identity and the primary reason most people purchase it. The Gen 4’s Smart Sensing 2.0 system improves the raw signal quality that feeds the sleep algorithm, producing more reliable stage detection than the Gen 3.

Sleep Score: How It’s Calculated

The Sleep Score is a 0–100 composite built from seven contributors, each weighted by the algorithm:

Contributor	Weight	What It Measures
Total sleep	High	Did you get enough hours? Compares to personal optimal
Efficiency	High	Percentage of time in bed actually asleep (target >85%)
Restfulness	High	Number and duration of awakenings and movement
REM sleep	Medium	Percentage of sleep in REM (target ~20–25%)
Deep sleep	Medium	Percentage in slow-wave sleep (target ~15–23%)
Latency	Low–Med	How quickly you fell asleep (ideal 15–20 minutes)
Timing	Low	Alignment with your chronobiological sleep window

Sleep Stage Detection: The Science

Consumer sleep rings classify sleep stages using actigraphy (movement patterns via accelerometer) combined with photoplethysmography (heart rate and HRV fluctuations). This approach does not measure brainwave activity directly — only polysomnography (PSG) in a clinical setting does that. However, a 2023 validation study published in npj Digital Medicine found the Oura Ring achieves 79% epoch-by-epoch agreement with clinical PSG for sleep stage classification — competitive with or better than most consumer wearables.

Breathing Regularity & SpO2

The Gen 4’s improved red and infrared LEDs enable more reliable overnight SpO2 measurement. The app reports average SpO2 alongside a breathing regularity score that flags nights with significant respiratory disruptions. This feature does not diagnose sleep apnea but provides meaningful signal for users who suspect sleep-disordered breathing.

Detailed guide: Can the Oura Ring Detect Sleep Apnea?  |  NIH: Sleep Research & Wearables

7. Heart Rate, HRV & Cardiovascular Features

Resting Heart Rate

The Oura Ring measures resting heart rate (RHR) continuously throughout the night and reports the overnight average. This is distinct from an instantaneous reading — overnight RHR is a more stable and clinically meaningful metric because it is unaffected by activity, caffeine, or stress from earlier in the day. The Gen 4’s improved green LED array produces cleaner RHR signals, particularly during the deep sleep phases where HR is at its lowest.

Heart Rate Variability (HRV)

HRV is measured as the RMSSD (root mean square of successive differences) — a standard metric of autonomic nervous system balance. The Oura Ring captures HRV during the lowest-HR period of sleep, typically the hour before waking. This is different from wrist-based wearables that report HRV during rest or over 24-hour windows, so Oura HRV readings are not directly comparable to other devices.

Peer-reviewed validation studies in Frontiers in Physiology and the Journal of Medical Internet Research have confirmed the Oura Ring’s HRV measurements fall within clinically acceptable limits of agreement compared to ECG reference devices during sleep.

Cardiovascular Age (Gen 4 Exclusive)

Cardiovascular Age is an entirely new metric introduced with Gen 4. It estimates the biological age of your cardiovascular system — how old your heart and vascular health appear based on your biometric data — and compares it to your chronological age. A Cardiovascular Age lower than your actual age suggests good cardiovascular health; higher suggests cardiovascular stress that may warrant lifestyle intervention.

The algorithm draws on HRV trends, resting heart rate, activity level, body temperature patterns, and sleep quality. While no consumer device can replace clinical cardiovascular assessment, the metric provides a useful longitudinal benchmark as you make lifestyle changes.

VO2 Max Estimate (Gen 4 Exclusive)

VO2 Max — maximal oxygen uptake — is one of the strongest predictors of cardiovascular fitness and longevity. Clinical VO2 Max testing requires a treadmill or cycle ergometer with gas exchange measurement. The Oura Ring Gen 4 estimates VO2 Max using a heart rate and activity correlation model, producing a range estimate that is most useful for tracking trends over time rather than as an absolute clinical figure.

Does Oura Ring 4 Measure Blood Pressure?

No — the Oura Ring Gen 4 does not measure blood pressure. Blood pressure measurement requires either cuff occlusion or a validated cuffless algorithm cleared by a regulatory body such as the FDA or CE. Oura has not released such a feature as of early 2026, and no announcements have been made regarding a blood pressure feature in the current hardware.

Full explanation: Does the Oura Ring Measure Blood Pressure?  |  Wikipedia: Heart Rate Variability

8. Body Temperature & Wellness Features

Body Temperature Feature Question
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Continuous Body Temperature Monitoring

The NTC (negative temperature coefficient) infrared thermistor on the ring’s inner surface measures skin temperature at the finger every night throughout sleep. The app reports temperature deviation — how much warmer or cooler you are compared to your personal nightly baseline — rather than absolute temperature.

This relative metric is surprisingly powerful for detecting physiological patterns. A +0.5°C deviation is not meaningful in isolation but becomes highly informative in context: it may signal the onset of illness, the luteal phase of the menstrual cycle, dehydration from alcohol, or the post-workout inflammation response.

Illness Detection

The UCSF TemPredict study, which monitored COVID-19 patients using Oura Rings in 2020–2021, found that sustained body temperature elevation of +1.0°C or more preceded confirmed positive test results by an average of 1.5 days in a significant subset of participants. While not a clinical diagnostic capability, the sensitivity of the Oura Ring’s temperature sensor to early physiological disruption has been independently validated in published research.

Stress & Resilience

Introduced in 2023 as a software feature available on Gen 3 and Gen 4, Stress & Resilience tracks daytime HRV patterns to categorise the balance between physiological stress load and recovery. The app displays a daily Resilience score (Poor, Adequate, Solid, Strong) based on how well your body is managing its total stress burden — including physical training, cognitive demands, poor sleep, and emotional stress.

Research: UCSF TemPredict Study  |  Wikipedia: Basal Body Temperature

9. Activity & Recovery Features

Activity Tracking

Activity tracking in the Oura Ring is designed to complement passive health monitoring rather than replace a dedicated sports tracker. The ring tracks steps, calories, active calories, MET minutes, and automatically detects workout type using accelerometer and PPG pattern matching. The daily Activity goal adapts dynamically based on your recent history and recovery status — unlike static step-count goals, this system acknowledges that optimal activity differs on recovery days versus peak performance days.

Readiness Score: The Recovery Intelligence Engine

The Readiness Score is the Oura Ring’s flagship output — a 0–100 composite score that synthesises overnight HRV, resting heart rate, body temperature deviation, sleep quality, previous day activity, and activity balance to produce a single ‘recovery readiness’ number each morning.

Readiness Score	Meaning	Recommended Action
85–100	Optimal recovery	Push hard in training or cognitive demands
70–84	Good — recovered	Normal training load appropriate
60–69	Pay attention	Moderate intensity only — prioritise sleep tonight
Below 60	Recovery needed	Rest day, gentle movement, investigate causes

Inactivity Alerts

The Gen 4 vibrates gently to alert you when you have been sedentary for longer than the threshold set in your app preferences. This feature, often overlooked, is backed by substantial research linking prolonged sitting to cardiovascular risk independent of overall daily activity. The gentle haptic prompt is less intrusive than the persistent notification popups common in smartwatches.

Wellness benefits: Benefits of the Oura Ring 4 — All Features Reviewed  |  Oura Ring vs Smart Watch — Which Is Better?

10. Women’s Health Features

The Oura Ring Gen 4 offers the most comprehensive women’s health feature set available on any smart ring. These capabilities are built on the ring’s continuous body temperature and HRV data, which produce a physiological fingerprint of the hormonal cycle.

Cycle Insights

Cycle Insights uses basal body temperature deviation, resting heart rate, and HRV to model the four phases of the menstrual cycle — menstrual, follicular, ovulatory, and luteal — and predict phase transitions. It is not a diagnostic tool but a wellness feature for understanding how hormonal changes affect sleep, energy, and recovery.

Natural Cycles Integration

The Oura Ring integrates directly with Natural Cycles, the FDA-cleared digital contraception app. When connected, nightly BBT readings from the ring export automatically to Natural Cycles, which uses its clinical algorithm to generate a red (fertile) or green (non-fertile) day designation each morning. This is the only FDA-cleared digital birth control integration available on any smart ring.

Pregnancy Mode

Pregnancy Mode is a dedicated app configuration that recalibrates Oura’s baselines and scoring algorithms for the physiological changes of pregnancy. Standard Readiness and HRV scoring would produce misleading results during pregnancy — Pregnancy Mode adjusts for the normal elevated HR, reduced HRV, and sustained temperature elevation characteristic of gestation.

Complete women’s guide: Oura Ring for Women — Cycle Tracking, Pregnancy & Hormonal Health  |  Natural Cycles Official — FDA-Cleared Digital Contraception

11. Oura Ring App Features

The hardware sensor array is only half the product — the Oura app transforms raw biometric data into actionable health intelligence. The app is available for iOS 16+ and Android 11+ and requires an Oura membership for most features beyond basic step and heart rate tracking.

Core App Interface

The app’s home screen presents the three daily score rings — Sleep, Readiness, and Activity — in a clean dashboard. Tapping any score reveals a detailed breakdown with contributor bars, personal trend context, and plain-language insight cards that explain what the data means in practical terms without requiring the user to understand the underlying physiology.

Key App Features

• Daily Scores: Sleep, Readiness, and Activity scores with contributor breakdowns.
• Trends & Charts: multi-week and multi-month trend views for all metrics, enabling pattern recognition across cycles, seasons, and lifestyle changes.
• Tags: log alcohol, caffeine, illness, stress, exercise type, eating windows, and 30+ other lifestyle factors to correlate with your biometric data.
• Cycle Insights: menstrual cycle phase prediction and BBT visualisation.
• Stress & Resilience: daytime physiological stress monitoring with resilience rating.
• Workout tags: manual and automatic workout logging with HR and calorie data.
• Partner integrations: Apple Health, Google Fit, Natural Cycles, Dexcom CGM, Strava, and others.
• Data export: CSV download available via the Oura web dashboard for power users.

Dexcom CGM Integration

A notable Gen 4-era integration is with Dexcom’s continuous glucose monitoring (CGM) system. Users who wear a Dexcom CGM sensor can overlay blood glucose data from the Dexcom app alongside their Oura biometrics, creating a metabolic health picture that combines glucose response with sleep quality, HRV, and activity. This is particularly valuable for people with metabolic health goals or those experimenting with dietary interventions.

App deep dive: Oura Ring App — Complete Feature Guide  |  Dexcom Official

▶ Video: Oura Ring 4 Features Walkthrough — Every New Spec Explained (YouTube) Watch a complete video walkthrough of the Oura Ring Gen 4’s new Smart Sensing 2.0 system, Cardiovascular Age setup, app features, and comparison against Gen 3.Recommended YouTube searches: ‘Oura Ring 4 new features 2025’ · ‘Oura Ring Smart Sensing 2.0 explained’ · ‘Oura Ring 4 app walkthrough’Recommended channels: DC Rainmaker · The Quantified Scientist · Oura Official YouTube

12. Design, Hardware & Build Specifications

Heritage vs. Horizon: Design Differences

Feature	Heritage Design	Horizon Design
Exterior shape	Flat-top with bevelled edges	Fully rounded dome — no flat surfaces
Width	7.9 mm	7.0 mm — slightly slimmer
Thickness	2.88 mm	2.55 mm — slightly thinner
Best described as	Modern signet ring or luxury band	Contemporary dome ring
Popular with	Users wanting a design-forward look	Users wanting maximum discretion
Sensor system	Identical Smart Sensing 2.0	Identical Smart Sensing 2.0
Sizing	Same size numbers as Horizon	Same size numbers as Heritage

Colour Finishes & Materials

Finish	Material	Price Tier	Available On
Silver	Natural titanium polish	$299	Heritage · Horizon
Black	DLC titanium coating	$299	Heritage · Horizon
Gold	PVD gold over titanium	$349	Heritage · Horizon
Stealth	Matte DLC titanium	$349	Heritage only
Rose Gold	PVD rose gold over titanium	$349	Horizon only
Brushed Titanium	Natural brushed finish	$499+	Heritage · Horizon (limited)

Materials guide: Is the Oura Ring Rose Gold Real? (PVD vs. Gold Plating Explained)  |  Oura Ring Sizing Hub — Sizes 6–13

Battery Life by Usage Pattern

Usage Pattern	Expected Battery Life
Automatic tracking only (passive)	7.5–8 days
Moderate daily use	5.5–6.5 days
Heavy use (frequent syncs/workouts)	4–5 days
Cold weather use (<5°C)	4–5.5 days — cold reduces Li-ion capacity

Battery test: Oura Ring 4 Battery Life — Real-World Test Results

13. What Features Are Missing from Gen 4?

Honest coverage of a product’s capabilities requires acknowledging what it cannot do. The following features are absent from the Gen 4 and, based on current hardware, cannot be added via software updates.

Missing Feature	Why It’s Absent	Alternative
GPS	No GPS chip in the ring form factor	Pair with a GPS watch or phone GPS
Screen / display	No display on any Oura ring	Check Oura app on phone
Blood pressure	No cuff or validated cuffless algorithm	Dedicated BP monitor
ECG	No electrical cardiac sensors	Apple Watch or Kardia device
Notifications	No vibration alerts beyond inactivity	Phone or smartwatch
Real-time HR display	No ring-side display — app required	Oura app open during workout
Contactless payment	No NFC chip	Phone or contactless card
Standalone music control	No speaker, microphone, or NFC	Phone or watch
Blood glucose (native)	Optical glucose is not yet validated	Dexcom CGM integration available
Sleep apnea diagnosis	SpO2 flags risk only — not FDA-cleared diagnostic	WatchPAT or clinical PSG

Limitations in detail: Does Oura Ring Measure Blood Pressure?  |  Can Oura Ring Detect Sleep Apnea?  |  Oura Ring Problems & Troubleshooting

14. Frequently Asked Questions

Complete Resource Centre

On this site: Oura Ring Hub  |  Oura Ring Gen 4 Review  |  Oura Ring Buying Guide  |  Oura Ring Comparisons Hub  |  Oura Ring for Women  |  Oura Ring App Guide

Authority sources: Nature: npj Digital Medicine — Oura Validation Study  |  Wikipedia: Photoplethysmography  |  Frontiers in Physiology: HRV Wearable Research  |  NIH: Wearable Devices Health Research  |  r/ouraring Community  |  BBC: Smart Rings & Health Technology

⚤ Medical Disclaimer The information in this article is for general educational purposes only. Oura Ring Gen 4 is a consumer wellness device, not an FDA-cleared diagnostic tool except where specifically noted. Do not use wearable data to self-diagnose or self-treat any medical condition. Consult a qualified healthcare professional for any health concerns.

💰 Price Disclaimer Prices mentioned are approximate averages at time of writing. Actual prices may vary by retailer, region, and promotions. Always check the official Oura website for current pricing before purchase.