Blood Pressure Monitor Heart Rate Step Tracker Smart Ring with Wireless Charging Case for Ios & Android APP. Multi-Function Health Monitoring: Tracks heart rate, blood pressure, blood oxygen, sleep, steps, calories, and stress. Customizable Colors: Available in Gun, Gold, Rose Gold, Ink Blue, Silver, and Seven Colors customized edition. OEM/ODM Customization Support: Supports custom design, logo, PCBA, APP, and MD development for smart health rings. IP68 Waterproof Rating: Durable design with IP68 water resistance for daily wear and exercise. Wireless Charging: Includes wireless charging compartment for convenient power replenishment. Long Standby Time: Battery lasts approximately 3 to 5 days on a single charge. Aerospace Titanium Alloy: Constructed from high-quality aerospace titanium alloy for durability and comfort. Multi-Language APP Support: APP supports 16 languages including English, Chinese, Spanish, and French.