GoKawiilCircular unveils Ring 3 Pro and Slim smart rings with NFC payments
Circular has launched its Ring 3 series, succeeding last year's Ring 2, in two versions: a titanium Pro model retaining ECG-based AFib detection, and a lighter Slim model using biocompatible epoxy but lacking ECG tracking. Both rings add vibrating alerts for alarms and reminders and an NFC chip enabling contactless payments directly from the ring.