The pulse oximeter provides noninvasive measurements of oxygen saturation, pulse rate, and perfusion index, allegedly with greater accuracy than over a dozen other hospital-grade pulse oximeters.
In a study of 70 healthy volunteers during conditions of movement and low blood flow, Masimo SET was the most accurate pulse oximeter when compared to 19 other hospital-grade pulse oximeters. SpO2 accuracy was defined as being within 7% of the reference value and pulse rate accuracy as being within 10%.
The measurements and trends are sent to iPhone or iPad via Bluetooth LE and stored in the Masimo Personal Health app available in the App Store, while the data can also be shared with Apple's official Health app if permission is granted.
MightySat is $299, while a premium version that also measures respiration rate and pleth variability index is available for $399.