Circular Ring Slim: Smart ring is available at a low price, offers SpO2, HRV, vibration motor and smart wake-up

Smart rings are a relatively new phenomenon, but various manufacturers are now vying for customers' favor with their products - and affordable trackers are now also available. With the Circular Ring Slim, a new system is now on the market and can be ordered immediately for a price of 234 euros. This is currently still a pre-order, so the rings will not be shipped until December 2023 to January 2024.

The ring weighs only around two grams and can be ordered in several sizes. The range of functions is extensive, although the manufacturer is unable to deliver any major innovations with the Ring Slim. According to the manufacturer, the heart rate can be measured throughout the day and night, just as the heart rate variability - this can be used as a parameter for assessing the need for recreation, for example. Blood oxygen saturation can also be measured. The app should be able to provide personal information and insights into the state of health, and the stress level can be measured live.

According to the manufacturer, sleep can also be analyzed. The breathing rate can also be recorded during the night. A temperature sensor is built in. The Circular Ring Slim also comes with a vibration motor - which is not a matter of course for smart rings. Thanks to this, users can also be woken up by vibrations - during a lighter sleep phase, which should make waking up much more pleasant.

The battery life is estimated at up to five days, and a full charge takes just 45 minutes via the special charging pad.