Circular has announced its upcoming Ring 3 series, comprising a Pro model and a Slim option, both featuring integrated NFC chips for contactless payments and on-finger vibration alerts. The Ring 3 Pro offers a slimmer design compared to its predecessor and includes FDA-cleared ECG for Afib detection, blood pressure trend tracking, glucose tracking, advanced sleep analysis, and comprehensive biometric monitoring, with up to 12 days of battery life. In contrast, the Slim model is thinner and lighter, providing basic health and wellness tracking such as sleep, heart rate, HRV, SpO₂, skin temperature, and daily activity, with up to 10 days of battery life.

The announcement of the Circular Ring 3 series arrives amidst increased competition in the smart ring market, following the launches of the Oura Ring 5 and RingConn Gen 3. Circular CEO Amaury Kosman stated that the company recognizes not all users desire every health feature, thus the Slim model offers essential wellness insights and contactless payments in a compact design. Both models are constructed from titanium steel, boast 50-meter water resistance, support wireless charging, and will be available in sizes 6–14 and colors including gold, rose gold, silver, and black. Pricing and pre-order information will be disclosed in the coming months, with an expected release in early 2027. Source

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