Compatible High-Efficiency Lightweight Activity Fitness Tracker OEM Smart Ring

Compatible High-Efficiency Lightweight Activity Fitness Tracker OEM Smart Ring. Comprehensive Health Monitoring: Tracks heart rate, SpO2, sleep stages, stress, and body temperature automatically. Customizable Color Options: Available in Silver, Rose Gold, Gold, and Black to match personal style. OEM & ODM Support: Full customization services including designs and samples are accepted. Long Battery Life: Up to 7 days of usage and 15 days of standby time on a single charge. Wireless Qi Charging: Convenient wireless charging case with fast charging time of under 2 hours. Multiple Size Options: Eight sizes available ranging from size 6 to size 13 for perfect fit. Global Certifications: Product certified with CE, ROHS, and FCC for international safety standards.