Robot model
Oura Ring 4
Oura (Oura Health, founded 2013 in Oulu, Finland) makes the Oura Ring, a biometric-primary titanium smart ring with sleep and readiness AI, recorded in the new…
- Manufacturer
- Oura
- Form factor
- biometric
- Maturity
- commercial
- Lifecycle
- active
- Deployments
- 1
- Website
- ouraring.com ↗
Overview
Oura (Oura Health, founded 2013 in Oulu, Finland) makes the Oura Ring, a biometric-primary titanium smart ring with sleep and readiness AI, recorded in the new biometric form factor, with the Oura Ring 4 from late 2024 introducing its Smart Sensing platform that expanded signal pathways from eight to eighteen on roughly an eight-day battery. It pairs heart-rate and heart-rate-variability, blood-oxygen-trend, multi-point temperature, and accelerometer sensing with sleep staging and a Sleep Score, a Readiness Score, activity, stress, cycle tracking with Natural Cycles integration, a VO2 Max estimate, and an AI Oura Advisor across more than 50 metrics, sold by purchase plus a required membership of $5.99 a month. On FDA status, the Oura Ring 4 itself has no clearance and is marketed as a general-wellness product, with its only cleared-feature route via partner integrations such as the FDA-cleared Natural Cycles birth-control app consuming Oura temperature data, where the clearance belongs to the partner. Oura is the disciplined counter-case to Whoop in the verified-versus-claimed framework: it launched a Blood Pressure Profile Study in December 2025 to pursue a hypertension feature, but that feature is investigational and not cleared, so Oura is running the clearance path before marketing blood pressure, in contrast to Whoop's market-first posture that drew an FDA warning letter. A valuation correction is worth recording: Oura is valued at $11 billion after a roughly $900 million Series E in October 2025 led by Fidelity with revenue reportedly above $1 billion in 2025, not the stale roughly $5 billion figure. Its clinical-validation posture is the strongest and growing in the cohort specifically on sleep, with a 2025 Brigham and Women's Hospital study finding it the most accurate consumer sleep tracker for four-stage classification against polysomnography, while its posture is validated wellness rather than a cleared medical device except via partners, and its blood-pressure feature and the accuracy of its Readiness and VO2 Max metrics are investigational or not clearance-validated.
Verified vs. claimed
- Maturity stage
- commercial(Commercially deployed with revenue-generating operations.)
- Verified deployments
- 1 deployment on file
- Sources on file
- 6 sources, view all
Key facts
Battery life
Price
Sensor suite
FDA status
Form factor
Specs
Notes
Specs
Battery
Weight kg
Form Factor
Fda clearance
Data & sources
Press releases
2
News coverage
2
Research
1
Web sources
1
6 sources backing this record.View all →
Availability and pricing
- Availability
- Shipping now
- Price
- $349 to $499 (actual sale price)as of 2024-10-01
- Units in field
- Not disclosed
- Sales model
- Not disclosed
- Lead time
- Not disclosed
Pricing
Monthly subscription
$6 USDactual sale priceas of 2024-09-30
Annual lease
$70 USDactual sale priceas of 2024-09-30
Price status: actual-sale-price = real published price at time of sale; manufacturer-target = vendor target, not yet realized; analyst-estimate = third-party projection, not a vendor figure; not-announced = no price on record.
Prices verified as of Oct 1, 2024
Deployments (1)
- Oura Ring 4 at Globaloperational
Oura Ring 4 aggregate global deployment.
Oura Ring 4 on the deployment map
Where Oura Ring 4 is verified operating. Explore the deployment map by place and type.
Recent activity
Every change to this record is dated, sourced, and independently verified where marked.
- Verified media addedVerifiedJun 8, 2026
Introducing Oura Ring 4: Sleeker. Smarter. Made for you.
- Specs.fda clearance verifiedVerifiedJun 7, 2026
none
- Verified media addedVerifiedJun 4, 2026
Introducing Oura Ring 4
- Record createdJun 3, 2026
Added to the verified registry
- Price point recorded: $349-$499Jan 1, 2025
Actual sale price
Deployment-verified media (2)
Oura's introduction of the Oura Ring 4. Oura is a wellness device; its sleep, readiness, and stress metrics are not FDA-cleared diagnostics.
From deployment: Global
Official Oura launch video for the Oura Ring 4, featuring Smart Sensing technology with up to 8 days of battery life, fully titanium design with recessed interior sensors, expanded size range, and six finishes.
From deployment: Global
Supply chain (2)
Compute / semiconductor
- Infineon TechnologiesInfineon PSoC 6 microcontroller -- dual-core ARM Cortex-M4F + Cortex-M0+ SoC; serves as main application processor and sensor data aggregator in Oura Ring 4; a different PSoC 6 SKU is also used in the charging base; Infineon PSoC 6 accounts for a significant portion of the IC bill of materials (combined with Analog Devices AFE and power management IC, approximately 52% of total IC cost per TechInsights 2024 teardown)supplies
Sensors
- Analog DevicesAnalog Devices MAX86178F analog front-end (AFE) -- multi-parameter biometric sensor hub integrating PPG (photoplethysmography), ECG, and EDA sensing channels; one of the highest-cost ICs in the Oura Ring 4 design; drives the ring's core health monitoring capabilities (heart rate, heart rate variability, blood oxygen, temperature, and skin response)supplies
Suppliers appear here when verified with at least two strong sources (maker-official / IR / regulatory / standards-body / verified tier-2). Sources are append-only; corrections add new sources rather than rewrite history.
Safety record
No incidents on record for Oura Ring 4.
Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.
Sources (6)
- https://www.cnbc.com/2025/10/14/oura-smart-ring-11-billion-valuation.html
- https://ouraring.com/blog/oura-ring-4/
- https://www.medtechdive.com/news/oura-blood-pressure-fda-study/
- https://sleepreviewmag.com/sleep-diagnostics/consumer-sleep-tracking/oura-ring-4-sleep-accuracy/
- https://pubmed.ncbi.nlm.nih.gov/38382312/
- https://support.ouraring.com/hc/en-us/articles/33045011508115-Oura-Ring-4
Compare Oura Ring 4
Common questions
- What is Oura Ring 4?
- Oura (Oura Health, founded 2013 in Oulu, Finland) makes the Oura Ring, a biometric-primary titanium smart ring with sleep and readiness AI, recorded in the new biometric form factor, with the Oura Ring 4 from late 2024 introducing its Smart Sensing platform that expanded signal pathways from eight to eighteen on roughly an eight-day battery. It pairs heart-rate and heart-rate-variability, blood-oxygen-trend, multi-point temperature, and accelerometer sensing with sleep staging and a Sleep Score, a Readiness Score, activity, stress, cycle tracking with Natural Cycles integration, a VO2 Max estimate, and an AI Oura Advisor across more than 50 metrics, sold by purchase plus a required membership of $5.99 a month. On FDA status, the Oura Ring 4 itself has no clearance and is marketed as a general-wellness product, with its only cleared-feature route via partner integrations such as the FDA-cleared Natural Cycles birth-control app consuming Oura temperature data, where the clearance belongs to the partner. Oura is the disciplined counter-case to Whoop in the verified-versus-claimed framework: it launched a Blood Pressure Profile Study in December 2025 to pursue a hypertension feature, but that feature is investigational and not cleared, so Oura is running the clearance path before marketing blood pressure, in contrast to Whoop's market-first posture that drew an FDA warning letter. A valuation correction is worth recording: Oura is valued at $11 billion after a roughly $900 million Series E in October 2025 led by Fidelity with revenue reportedly above $1 billion in 2025, not the stale roughly $5 billion figure. Its clinical-validation posture is the strongest and growing in the cohort specifically on sleep, with a 2025 Brigham and Women's Hospital study finding it the most accurate consumer sleep tracker for four-stage classification against polysomnography, while its posture is validated wellness rather than a cleared medical device except via partners, and its blood-pressure feature and the accuracy of its Readiness and VO2 Max metrics are investigational or not clearance-validated.
- How much does Oura Ring 4 cost?
- Oura Ring 4 is listed at $349 to $499 on the DEPLOY registry. This is an actual sale price on record.
- Is Oura Ring 4 actually deployed in the real world?
- Yes. Oura Ring 4 is independently verified in real-world operation on the DEPLOY registry, confirmed at named deployment sites with primary sources: not a concept, render, or demo-only.
- Is Oura Ring 4 autonomous or teleoperated?
- Partly. DEPLOY verifies Oura Ring 4 operating autonomously for Tracks sleep. Other capabilities (Tracks heart health, Tracks menstrual cycle, and Tracks body temperature) are only demonstrated under teleoperation or remain vendor claims, not independently verified as autonomous.
- What are the specs of Oura Ring 4?
- Oura Ring 4's recorded specifications on the DEPLOY registry: Battery: 5-8 days; Weight: 0.005 kg. See the Specs section for the full sourced set.
- Who makes Oura Ring 4?
- Oura Ring 4 is made by Oura, based in Oulu, Finland, founded in 2013.
- Where is Oura Ring 4 deployed?
- 1 verified deployment of Oura Ring 4 is on the DEPLOY registry, including at Global.
- Can you buy Oura Ring 4?
- Oura Ring 4 is available for purchase - a real sale price is on record (see the pricing section for the figure and its source).
- What are alternatives to Oura Ring 4?
- On the DEPLOY registry, comparable biometric robots to Oura Ring 4 include Butterfly iQ+, Apple Watch, Butterfly AI Ultrasound, Evie Ring (and EvieMED).
- How does Oura Ring 4 compare to Butterfly iQ+?
- Oura Ring 4 and Butterfly iQ+ (Butterfly Network · 2 deployments) are both biometric robots on the DEPLOY registry. Oura Ring 4 has 1 verified deployment on record. Compare both records for specs, safety, deployments, and verified-vs-claimed autonomy.
- Is Oura Ring 4 a top biometric?
- On DEPLOY's intelligence score, which blends verified deployments, safety, adoption, media, and IP signals, Oura Ring 4 ranks in roughly the top 50% of biometric models tracked by the registry.
- What is Oura Ring 4's maturity stage?
- Oura Ring 4 is at the commercial stage on the DEPLOY maturity ladder (research, prototype, pilot, commercial, production). Commercial stage means production-grade deployments are operating at named customer sites.
- Is Oura Ring 4 safe?
- Oura Ring 4 has no incidents on record in the DEPLOY registry. This does not constitute a safety guarantee; it reflects the incidents DEPLOY has tracked and verified to date.
- What does the Oura Ring track?
- The Oura Ring tracks over 50 health metrics including sleep, activity, stress, heart health, metabolic health, and women's health. Battery life is approximately 9 days. Oura has published FDA guidance for non-invasive metrics like blood pressure estimation. Oura Ring 5 is the latest generation, sold as the world's smallest smart ring.
Methodology: Verified · 6 sources (3 primary) · last reviewed 2026-07-15
Verification posture
Verified
High confidence
Review state
Stable
Last reviewed 2026-07-15
Maturity + lifecycle
Maturity stage: commercial
Lifecycle: active
Architectural position
Cohort: biometric
Sources by quality tier
- 2
- primary-company-ir
- Company IR disclosure
- 1
- secondary-established-publication
- Established publication
- 1
- secondary-trade-publication
- Trade publication
- 1
- unclassified
- Unclassified source
- 1
- primary-academic-peer-reviewed
- Peer-reviewed clinical / academic
The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.
Methodology surface for Oura Ring 4.Recent coverage
Oura Ring 4 in third-party press
Attention vs reality over time
Media mentions per month (area) against verified deployment events (dots). A press spike over a flat deployment line is the hype gap, drawn over time.
In the press
Recent coverage mentioning Oura Ring 4 from third-party publications. Automatically surfaced; not part of the verified registry record.
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Oura Ring 5 starts shipping with new health tracking and blood pressure lab integration
Oura Ring 5 shipping. Fifth generation smart ring health tracker. New blood pressure lab integration. Continuous biometric data.
Oura is launching its smallest smart ring yet
Oura announced the Oura Ring 5, claiming it is the worlds smallest smart ring at 40 percent smaller than the previous generation, with new AI health features including blood…
Oura launches Ring 5, world's smallest smart ring, heads towards IPO
Oura Ring 5 launched as world's smallest smart ring. From 99. Oura heading towards IPO. Fourth-gen was most capable ring health tracker.
Oura Introduces Ring 5: The World's Smallest Smart Ring, 40% smaller
Oura Ring 5 is 40% smaller than Ring 4, making it the world's smallest smart ring. Shipping started June 4. Biometric data tracking. LillyDirect partnership for GLP-1 support.
Oura Ring 5: 40% Smaller with AI Health Features
Oura Ring 5 shrinks device by 40%. AI-powered health features including blood pressure pattern detection and GLP-1 management.
Machine-readable surfaces
- Markdown mirror: /models/oura-ring-4.md
- JSON-LD: embedded in this page’s head
- REST API: /v1/models/0d72f116-5e60-426c-80a6-afb2cf156c84
- Revision history: /models/oura-ring-4/history
- Data documentation: /data
- Query this programmatically: Deploy MCP
Buyer-facing pricing: deploy.report/price/oura-ring-4
Reality vs attention
Oura Ring 4 draws attention at the 58th percentile but verifies reality at the 46th percentile among biometric robots. Hype Gap +12.1, 5th widest among biometric robots.
6-month trend
Analysis
Thin deployment record; scale validation still in progress.
Signal flags
Dimension breakdown
Verified signal
Attention (reach, not merit)
DEPLOY Intelligence scores are computed from verified registry data: confirmed deployments, disclosed funding rounds, regulatory filings, active job listings, video viewership, and press coverage. Confidence ratings reflect data availability. Scores update nightly.
DEPLOY Indices — verified vs claimed
Last computed: Jul 19, 2026