Key Takeaways
1. The Circular Ring 2 is available for pre-order on Kickstarter, with a “Super Early Bird” price of $239 and deliveries starting in June 2025.
2. The ring comes in US sizes 6 to 13 and offers color options including silver, black, gold, and rose gold, with a battery life of up to seven days.
3. It features an FDA-approved ECG for heart rhythm monitoring and tracks heart rate, skin temperature, SpO2 levels, and more.
4. All features can be used without subscription fees, unlike some competitors, and it includes a smartphone app with an AI assistant named Kira.
5. The ring is made from titanium, is waterproof up to IP68 standards, and weighs approximately 0.14 ounces.
The Circular Ring 2 was first announced last November, and now, it’s ready for pre-order on Kickstarter. Customers can expect deliveries to start in June 2025. The “Super Early Bird” price is set at $239, while the retail price is anticipated to increase to $550, not including shipping or any international import fees.
Availability and Features
This smart ring comes in US sizes ranging from 6 to 13 and is available in silver, black, gold, and rose gold. A charging case and a cable will be included with each order. The ring reportedly has a battery life of up to seven days, but when using the charging case, this can extend to a full month before needing to recharge.
Health Tracking Capabilities
One of the major highlights of the Circular Ring 2 is its built-in electrocardiogram (ECG), which has FDA approval and can identify specific heart rhythm irregularities. Additionally, the ring automatically tracks heart rate, skin temperature, and SpO2 levels every two minutes to keep a close eye on these metrics throughout the day. It is also capable of measuring heart rate variability, stress levels, menstrual cycles, sleep quality, and workouts.
Subscription-Free Usage
The maker of the Circular Ring 2 points out that all features can be accessed without any subscription fees, which seems to be a dig at the Oura Ring 4 (priced from $347 on Amazon). The ring works alongside a smartphone app that includes an AI assistant named Kira, providing health advice based on the data collected. Constructed from titanium, the ring is also waterproof up to IP68 standards and weighs about 0.14 ounces.
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