ULTRAHUMAN RING AIR Advanced intelligence… for better health every day Elevate your lifestyle with the Ultrahuman Ring Air, the smart ring designed to accurately track your health and fitness indicators, with an elegant and lightweight design suitable for daily use. Features: ❤ 24/7 heart rate monitoring. Blood oxygen level measurement (SpO2). 🌡 Skin temperature tracking. 😴 Detailed sleep quality and stage analysis. Monitor recovery and daily readiness level. 🏃 Track sports activity, steps, and calories. 💧 Waterproof for daily use. 🔋 Battery lasts up to 6 days on a single charge. Specifications: * Color: Matt Gray * Size: 12 * Luxurious and lightweight design for all-day comfort. ✨ Choose the technology that gives you a deeper understanding of your body, and start a smarter health journey with the Ultrahuman Ring Air.