Ringconn - GoKawiil

Oura files for IPO as smart ring rivals from Circular, RingConn, Ultrahuman close in

Oura officially filed for an IPO on September 3, reporting revenue nearly doubling to $1.21 billion over nine months and 3.6 million rings sold to about 5 million paid members. The filing comes just after the launch of its slimmer Oura Ring 5, even as competitors like Circular, RingConn, and Ultrahuman roll out rings with tap-to-pay, haptics, and onboard software.

techcrunch.com · 2026-09-05

Circular 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.

techcrunch.com · 2026-09-03