Oura

Oura Ring has built brand recognition through sleep tracking, recovery index analysis, and minimalist exterior design.

Oura adopts a hardware + subscription business model, where users must pay for a subscription after purchasing the ring to unlock the full health analysis features.

Oura smart rings focus on core health metrics such as sleep tracking, heart rate variability (HRV) monitoring, body temperature detection, and physical recovery assessment.

大多数消费级健康科技产品采用"硬件+订阅"的商业模式，设备以接近成本价销售，利润来源是月度会员订阅费

Oura's subscription model provides the company with stable recurring revenue.

Oura, leveraging its first-mover advantage, holds the major market share in smart rings.

Oura has years of patent accumulation in the smart ring field, covering sensor placement in ring form factors, charging schemes, and sleep tracking methods.

Oura did not disclose specific patent details in the lawsuit.

The Oura ring infers HRV by continuously monitoring changes in finger-tip blood volume at night, and combines data such as body temperature and resting heart rate to generate a 'readiness' score.

Oura's VO2 Max estimate is more of a trend reference than a clinical-grade measurement, and users should regard it as an auxiliary tool for daily health management rather than a basis for medical diagnosis.

Automatic VO2 Max changes the Cardio Capacity measurement, which previously required manual triggering, to be completed automatically, with the ring estimating this value on its own during daily activities.

The focus of Oura's update this time is not on hardware but on data interpretation; smart rings have long been able to track metrics such as heart rate and heart rate variability.

Cardio Effort combines exercise duration and intensity to assess the load borne by the cardiovascular system during each workout, rather than simply recording whether heart rate is high or low.

Oura's new fitness metrics lean toward the output side, namely the changes in various physiological signals of the body after training, relying on the ring's continuous monitoring of nighttime temperature, heart rate variability (HRV), resting heart rate, respiratory rate and other data.

The Oura ring collects HRV during the nighttime resting state to avoid interference from daytime activity, but a single absolute value is greatly affected by individual baseline differences, so it usually needs to be interpreted in light of a person's long-term trends rather than through cross-sectional comparison.

Oura initially established category recognition through its sleep-tracking accuracy and used this to support its pricing above competitors.

After later entrants such as RingConn and Ultrahuman approached or even matched it on some sleep-monitoring metrics, an accuracy advantage in a single scenario could hardly constitute a long-term moat, which is an important backdrop for Oura shifting its narrative focus to workout impact analysis.

Oura has not yet disclosed the specific calculation methods of these new fitness metrics or the types of exercise they apply to.

Oura jointly models the nighttime-collected RHR with signals such as HRV and temperature to distinguish "normal post-exercise response" from "an abnormal state that requires adjusting the training plan."

Competitors such as RingConn and Ultrahuman are quickly catching up in hardware form and basic health tracking, and the label of "the most accurate ring for sleep" alone is no longer enough to sustain Oura's premium pricing.