The Ultrahuman Ring AIR weighs only 2.4 to 3.6 g, is made of durable titanium, and is reinforced with a special tungsten carbide-carbon coating to withstand maximum wear. For optimal wearing comfort, it features a hypoallergenic inner coating made of medical epoxy resin. The ring is also waterproof up to 100 meters. Advanced sensors, such as an infrared photoplethysmography sensor and a skin temperature sensor, capture important biological data. Red, green, and infrared LEDs accurately measure heart rate and oxygen saturation. The Ultrahuman Ring provides daily sleep scores, analyzes recovery with a recovery score, and supports activity and fitness tracking. A special feature is the scientifically-based coaching from ACSM-certified experts, which is tailored to your personal data and provides customized recommendations. Thanks to Bluetooth Low Energy (BLE 5), the Ultrahuman Ring AIR connects efficiently with your smartphone. The battery lasts 4 to 6 days and fully charges in 180 minutes. Available in Bionic Gold, Raw Titanium, Aster Black, Matte Grey, Space Silver, and Brushed Rose Gold, you are sure to find the smart ring that perfectly complements your style.

In 4 steps to the perfect Ultrahuman Ring: Order the Ultrahuman Ring in your desired color. Receive a free ring sizing kit in advance. With the sizing kit, you can first determine the correct ring size. Provide us with the appropriate ring size. Send us your ring size via email. Receive the Ultrahuman Ring in the correct size. After you have provided us with your ring size, we will send you the Ultrahuman Ring AIR. There are no shipping costs for you. Included in the package are: Ultrahuman Ring AIR, Standard Ring Charger, USB-C charging cable (1 m).