For sale: Ultrahuman Ring Air (Smart Health Ring) A sophisticated smart ring for accurate daily health and fitness tracking. The ring is very light, made of strong titanium, and designed for everyday use. Specifications and Features: • Continuous 24-hour heart rate measurement • Heart Rate Variability (HRV) measurement to monitor recovery and stress • Blood Oxygen (SpO2) measurement • Body temperature measurement via a precise thermal sensor • Complete sleep analysis (Deep Sleep – Light Sleep – REM) • Step counting and daily activity tracking • Exercise and movement tracking • Sleep quality analysis and health reports in the app • Water-resistant up to 100 meters • Connects to mobile via Bluetooth • Works with iPhone and Android devices • Battery lasts approximately 4 to 6 days • Very light weight, approximately only 2.4 – 3.6 grams • Made of titanium with a scratch-resistant coating Size: 7 Color: Gold Condition: Used and clean Note: Without charger and without box Price: ( 650 ) Riyals, negotiable. Purchased a month ago for 1500