Multifunctional Smart Ring Health Monitoring Device Heart Rate Blood Oxygen Sleep Tracker Smart Ring

Multifunctional Smart Ring Health Monitoring Device Heart Rate Blood Oxygen Sleep Tracker Smart Ring. Comprehensive Health Monitoring: Tracks heart rate, SpO2, HRV, stress, temperature, sleep stages, and daily activities. Durable Stainless Steel Build: Crafted from stainless steel with 5ATM dust and waterproof protection. Multiple Color Options: Available in Silver, Black, and Gold to match personal style. Long Battery Life: Up to 7 days of normal use and 15 days standby on a single charge. OEM & ODM Support: Full customization services including design and sample support available. Fast Charging Capability: Magnetic charging completes in under 1.5 hours. Wide Size Range: Available in sizes #7 through #13 with varying inner diameters. Global Certifications: CE, ROHS, and FCC certified for international safety and compliance.