WingFly Smart Ring - #11-20.9mm 5 ATM Heart Rate Monitor

Features: The stainless steel material has a metallic luster and a modern brushed finish look, making it aesthetically pleasing. Besides, it is very durable, rust and fade resistant. The surface does not attract dust or leave dirt residues and retains its shine even after prolonged use. Its ease of cleaning and maintenance eliminates a lot of maintenance hassle. Resistant to swimming, hand washing, cold shower and rain, track your sports data and monitor physical health in water-related situations. Very convenient for your daily life. Note: Please keep away from hot water or steam. It has a long battery life with a standby time of up to 15-20 days and 7-10 days of regular use, making it perfect for travel and outdoor activities. The smart ring for men and women features heart rate monitoring, blood oxygen monitoring, sleep monitoring, step counting, mileage and calorie consumption measurement. The smart ring is easy to wear and can be used effortlessly during outdoor sports, travel or daily activities to monitor health or use other functions at any time. This makes it particularly suitable for sports enthusiasts and people who frequently perform hand movements. Overview of functions - Heart rate monitor. Measurement of oxygen saturation in the blood. - Sleep monitoring. - Step counter. - Activity tracker. - Exercise time - Odometer. - Calories burned Features: Support System: Android 5.1, iOS 8.0 and above Material: stainless steel. Waterproof level: 5 ATM Charging time: about 1.5 hours If you have any operational questions, please contact us