Circular Ring 3 Pro and Slim Add NFC Payments and Vibration Alerts
Circular's Ring 3 Pro and Slim add NFC payments, vibration alerts, titanium bodies, up to 12 days of battery life, and an early 2027 release in four finishes.
Summary
Circular unveiled the Ring 3 Pro and Ring 3 Slim on September 3, 2026. Both add NFC contactless payments and on-finger vibrations for silent wake-up alarms, medication reminders, vital health alerts and guided breathing. The slimmer redesigned Pro offers FDA-cleared ECG for AFib detection, blood pressure trend and glucose tracking, advanced sleep analysis and comprehensive biometrics. Its battery lasts up to 12 days, versus seven for its predecessor.
The thinner, lighter Slim provides sleep, heart rate, HRV, SpO₂, skin temperature and activity tracking with up to 10 days of battery life. CEO Amaury Kosman said it targets buyers seeking essential wellness data and secure payments without every health feature. Both titanium steel rings support wireless charging, 50-metre water resistance and sizes 6 to 14. Like Ring 2, they come in gold, rose gold, silver and black. Pricing and preorder details are due in the coming months before availability in early 2027. Circular enters heightened competition following the Oura Ring 5 and RingConn Gen 3 launches.
Positives
- Ring 3 Pro battery life increases from seven days to as many as 12 days.
- Both Ring 3 models add NFC contactless payments and customizable on-finger vibration alerts.
- FDA-cleared ECG gives the Pro model AFib detection alongside blood pressure trend and glucose tracking.
- Ring 3 Slim delivers six core wellness metrics with up to 10 days of battery life.
- Both models provide titanium steel construction, wireless charging and 50-metre water resistance.
Risks & concerns
- Circular has not disclosed pricing or preorder terms, promising both only in the coming months.
- Early 2027 availability leaves buyers waiting months after the September 3, 2026 announcement.
- Ring 3 Slim is limited to basic wellness tracking rather than the Pro model's advanced health features.
- Oura Ring 5 and RingConn Gen 3 have already intensified competition before Circular's new rings reach buyers.