GoKawiilCircular launches Ring 3 Pro and Slim smart rings with NFC payments
Circular introduced its Ring 3 lineup, split into a feature-rich Pro model and a lighter Slim version, both equipped with NFC chips for contactless payments and vibration-based alerts for alarms and reminders. The Pro adds FDA-cleared ECG for Afib detection, blood pressure trend tracking, glucose tracking and deeper sleep analysis with up to 12 days of battery, while the Slim focuses on core metrics like heart rate, HRV, SpO2 and skin temperature with up to 10 days of battery.
GoKawiil's interpretation of the reporting above, not reported fact.
The launch arrives as smart ring competition intensifies following Oura's Ring 5 and RingConn's Gen 3, pushing makers to differentiate through medical-grade sensors versus simpler, fashion-forward designs. Offering tiered options signals that companies are betting on both health-tracking enthusiasts and casual users who just want payments and basic wellness data in a discreet form factor.
- Ring 3 Pro adds ECG, blood pressure trends and glucose tracking with 12-day battery life
- Ring 3 Slim offers basic tracking and NFC payments in a lighter, 10-day battery design
- Launch reflects growing competition against Oura Ring 5 and RingConn Gen 3
Oura Ring 4 Smart Ring — If Circular's Ring 3 has you curious about smart rings but you'd rather buy something available right now, the Oura Ring 4 is the benchmark competitor the article name-checks. It tracks sleep, heart rate, HRV, and daily activity from a lightweight titanium band you barely notice wearing.
See Oura Ring 4 Smart Ring on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: techcrunch.com — Aisha Malik, 2026-09-03
Published there as: “Circular unveils Ring 3 series with contactless payments and on-finger vibration alerts”
Read the original report → The summary and analysis above are GoKawiil's own, written from reporting by the source above. Facts and quotes belong to the original publisher.