Meet the Circular Ring: a smart wearable device that compares your day and night data to help you make better sense of your health. Circular has an AI assistant, Kira, that gives you insights with your data. It is not only a sleep tracker but an activity tracker.
The device can count your steps, measure your SpO2 and HRV, and detect your activity automatically. Circular lasts up to 2 days on battery.