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Circular confirms its $259 smart ring is coming to the U.S.

The Circular smart ring is finally going to be available for pre-order on Sunday, February 27, via the Circular website and will cost $259. The wearable tech will be available for presale in European countries (France, Germany, the U.K., and Italy,) the United States, Australia, Hong Kong, and Singapore. Pre-orders will go live at 1:30 p.m. ET on Sunday, February 27. Those who pre-order the smart ring should expect delivery between April and June 2022, according to a Circular press release.

Circular doesn’t clarify what ring sizes will be available when presales go live, however, the company has said that seven sizes for both men and women will be available. Digital Trends has reached out for clarification on the available sizes, and will update this article when we hear back. The Circular smart ring also comes in four different colors that can be switched out with replaceable outer shells: Black, rose gold, silver, and gold.

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The Circular ring was a highlight reveal from CES 2022 as the company looks to innovate the wearable health technology market. The smart ring is a device that aims to provide users with personal health insights through its accompanying app, which should help better inform owners about their body signals. Body signals that the device will help monitor include “heart rate variability, blood oxygenation, breathing rate, body temperature, and more,” according to Circular.

The Circular ring is meant to help users interpret the bodily functions that it monitors while guiding users toward “better sleep” and “heart recovery.” Although Circular isn’t the first company to provide wearable tech owners with health insights, as seen with such devices like the Fitbit or Apple Watch, but the company hopes to give users an understanding of what specifically their body is doing instead of simply providing “raw data.”

Those worried about health privacy can transfer the data collected by the Circular smart ring directly to medical professionals while their information stays “strictly confidential.”

Peter Hunt Szpytek
A podcast host and journalist, Peter covers mobile news with Digital Trends and gaming news, reviews, and guides for sites…
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Tracking and features
A 14-day calibration period begins as soon as the user wears the ring for the first time. During this period, the ring establishes the user's baseline health parameters, which helps it to give them personalized and actionable recommendations to make healthy changes in their lives. Circular tracks multiple health metrics, including temperature, heart rate variability, energy levels, and VO2 Max. Circular has a dual PPG sensor in its ring combined with the Circular app that allows it to read heart signals and blood oxygen. It detects if the heart rate shows any signs of cardiac arrhythmia, and if the heart rhythm is steady. The data tracked is purported to be clinically accurate and can be shared with a professional for further advice. Wearing it both during the day and the night can help Circular to correlate the data using machine learning.Circular also seems to be extremely efficient while tracking sleep. It can tell a user how much time they spend in each sleep stage -- light sleep, deep sleep, REM sleep, and when they are lying awake. More importantly, it also calculates how efficiently a user has slept. The app shares data on a number of important criteria to examine sleep quality, including time taken to fall asleep, sleep debt, real sleep time, disturbances while sleeping, etc. It also provides silent vibrations to users in their light sleep stage if they wish to be awakened, without disturbing their surroundings.
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