The MiO ring is equipped with an array of sensors to provide comprehensive health monitoring. These include a green LED for optical heart rate sensing, a red LED for blood oxygen levels, an infrared photoplethysmography (PPG) sensor for vascular health assessment, skin temperature sensors for thermal regulation tracking, a photodiode for light detection, and 3D accelerometers for activity tracking. Together, these sensors enable the MiO ring to capture vital data on heart rate, blood oxygenation, sleep quality, activity levels, and overall wellness, offering users a detailed and holistic view of their health metrics.