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.

Oura Ring 4 is listed at $349 to $499 on the DEPLOY registry. This is an actual sale price on record.

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.

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.

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.

Oura Ring 4 is made by Oura, based in Oulu, Finland, founded in 2013.

1 verified deployment of Oura Ring 4 is on the DEPLOY registry, including at Global.

Oura Ring 4 is available for purchase - a real sale price is on record (see the pricing section for the figure and its source).

On the DEPLOY registry, comparable biometric robots to Oura Ring 4 include Blackrock Neuroport Array, BrainQ Non-Invasive BCI, Neko Body Scan, RNS System.

Oura Ring 4 and Blackrock Neuroport Array (Blackrock Neurotech · 5 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.

On DEPLOY's intelligence score, which blends verified deployments, safety, adoption, media, and IP signals, Oura Ring 4 ranks in roughly the top 81% of biometric models tracked by the registry.

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.

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.

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.