Oxitone Medical is developing a unique absolute wristwatch-like wearable pulse oximeter for continuous pulse rate and blood oxygen saturation monitoring. The uniqueness of this device is in measuring the pulse rate and oxygen saturation without conventional fingertip sensors and wires. All sensors are placed at the wrist location and embedded into convenient and familiar wristwatch-like enclosure. Millions of people worldwide are using noninvasive blood oxygen saturation (SaO2) monitors to assess their health before, during or after the therapy. However, some diseases assessing, diagnostics and therapy require a blood oxygen saturation control in continuous manner, mostly at home environment. The problem of patients, physicians and healthcare providers is that the current spot-check and hand held pulse oximeters using inconvenient, irritating and permanently falling fingertip sensor are not applicable for continuous home, out-patient monitoring and preventive medicine without compromising patients’ sleep or daily activity. Portable pulse oximetry market is estimated as ~200M$ with ~9-11% compound annual growth. The key customers for the wrist pulse oximeter are 5000 sleep labs, 16100 nursing homes and ~30M sleep disorders, pulmonary diseases and congestive heart failure patients (EU, USA).