Circular Ring 2

The Circular Ring 2 is a smart ring that collects heart rate, HRV, SpO2, skin temperature, sleep stages, and activity metrics. Circular has not published a comprehensive privacy policy addressing how biometric health data is stored, encrypted, retained, sold, or shared. Sold at approximately $299.

Yes. Circular Ring 2 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.

Circular Ring 2 is made by Circular, based in Paris, France, founded in 2019.

2 verified deployments of Circular Ring 2 are on the DEPLOY registry, including at France, Europe, Germany, Europe.

Circular Ring 2 is in commercial deployment and is sold to operators; contact the manufacturer to buy, and see the pricing section for any recorded price.

On the DEPLOY registry, comparable biometric robots to Circular Ring 2 include Blackrock Neuroport Array, BrainQ Non-Invasive BCI, Neko Body Scan, RNS System.

Circular Ring 2 and Blackrock Neuroport Array (Blackrock Neurotech · 5 deployments) are both biometric robots on the DEPLOY registry. Circular Ring 2 has 2 verified deployments 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, Circular Ring 2 ranks in roughly the top 49% of biometric models tracked by the registry.

Circular Ring 2 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.

Circular Ring 2 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.