Circular introduced the Ring 3 Series, marking an evolution from the Ring 2 model that was presented at CES 2025. The new lineup includes two distinct variants designed to serve different user preferences and needs.
The Ring 3 Pro maintains the advanced health-monitoring features of its predecessor, including FDA-cleared atrial fibrillation detection and upgraded sensors. The device features a redesigned titanium construction on both inner and outer surfaces to enhance durability while achieving a slimmer overall profile. The model continues to offer finish options in gold, rose gold, silver, and black. Battery performance has been significantly improved, extending from seven days to up to 12 days on a single charge despite incorporating a smaller capacity battery. The wireless charging case can complete five to six full recharge cycles before requiring access to a power outlet.
The Ring 3 Slim represents a more compact alternative with an emphasis on discretion and comfort. It features an even thinner and lighter band design, utilizing a reduced-capacity battery that provides up to 10 days of use. The interior construction employs a biocompatible epoxy material rather than titanium, contributing to its lighter weight. While the Slim model retains photoplethysmography sensors for heart rate and blood oxygen monitoring, it omits the electrocardiogram sensor and associated atrial fibrillation detection capabilities. The model continues to track skin temperature, daily activities, sleep patterns, and heart rate variability.
Both Ring 3 models incorporate vibrating alerts for alarms, medication reminders, and guided breathing exercises. Each device includes an integrated NFC chip enabling contactless payment functionality, eliminating the need to carry a phone or wallet for transactions. Pricing information has not been disclosed, with commercial availability anticipated in early 2027.
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