Breathe Easy, Sleep Soundly! 🌙 Patented silicone ring sensor ensures a snug, comfortable fit without finger numbness. Smart vibration and audio alarms keep you informed without disturbing your sleep. Seamlessly syncs with the Vihealth App for real-time monitoring. Accurately records O2 levels and pulse rate overnight for optimal health insights. Enjoy up to 72 hours of continuous use on a single charge—no batteries needed! Bluetooth Connectivity 72H Battery Life Overnight Monitoring The Checkme O2 Max Pulse Oximeter is a cutting-edge wrist monitor designed for overnight tracking of blood oxygen levels and pulse rate. With a remarkable 72-hour battery life and Bluetooth connectivity, it pairs effortlessly with the Vihealth App for real-time data sharing. Its patented silicone ring sensor ensures comfort, making it ideal for those with breathing difficulties. Perfect for sports and aviation enthusiasts, this device combines functionality with user-friendly features.