Sphygmomanometers; Blood oxygen monitors; Blood pressure monitors; Heart rate monitors; Medical apparatus and instruments for monitoring blood oxygen saturation, blood gas concentrations, and vital signs; Medical devices, namely, pulse oximeters; Alarms and sensors to be worn on a person while exercising for the purpose of monitoring heart rate; Dynamic electrocardiogram monitors; Heart monitors; Heart monitors to be worn during exercise; Heart rate monitoring apparatus; Heart rate monitors for sports activities; Medical apparatus and instruments for monitoring heart rate; Patient medical monitors for monitoring heart rate; Wearable monitors used to measure biometric data for medical use; Medical devices, namely, ring pulse oximeters and medical apparatus for monitoring vital signs of patients worn on the finger to collect data that can be synced via a wireless telecommunications network to a companion mobile software application thereby enabling a user to view, print and email data collected from the device