Oxygen saturation and pulse rate provide critical information. Fingertip pulse oximeters are increasingly being purchased for personal use, but until now, none have been available with Masimo SET® Measure-through Motion and Low Perfusion pulse oximetry—the same technology used on over 100 million patients a year in leading hospitals worldwide.

Now, instead of guessing whether your pulse oximeter is providing accurate measurements, rely on Masimo SET® technology. From the leader in pulse oximetry, the MightySat fingertip pulse oximeter and the iSpO2® pulse oximeter provide accurate blood oxygen saturation and pulse rate measurements when other pulse oximeters fail.

For sports and aviation use only in the US

Technology that Counts

More than 100 independent and objective studies show Masimo SET® technology outperforms other pulse oximeters.1 Masimo SET®:

  • > Allows you to noninvasively measure blood oxygen saturation (SpO2) and pulse rate (PR) in addition to perfusion index (PI)
  • > Provides accurate measurements when other pulse oximeters fail – during the challenging conditions of motion and low perfusion (or blood flow)
  • > Is ideal for those who want reliable measurements even under extreme conditions


Oxygen saturation of arterial blood
Pulse Rate measured in beats per minute (BPM), also known as heart rate
Perfusion Index indicates arterial pulse signal strength
Pleth Variability Index is a measure of the dynamic changes in PI that occur during the respiratory cycle


Fingertip Pulse Oximeter

MightySat is available in three versions–each of which provides oxygen saturation (SpO2), pulse rate (PR), and perfusion index (PI) measurements in a compact, battery-powered design with a large color screen that can be rotated for real-time display of the pleth waveform as well as measurements.

  • > Signal I.Q.® to assess measurement confidence
  • > Rugged, lightweight design for operation in challenging environments
  • > Long battery life–up to 15 hours with two standard AAA alkaline batteries
  • > Optional Bluetooth wireless functionality enables measurement display via a free, downloadable app on iOS and Android mobile devices as well as the ability to trend and communicate measurements
  • > Optional PVI version for those who want to use their pulse oximeter to evaluate another physiologic dimension, MightySat is the only fingertip pulse oximeter available with Pleth Variability Index (PVI) measurement
  • > PVI is a measure of the dynamic changes in the perfusion index (PI) that occur during the respiratory cycle
  • > Two year limited warranty


Available exclusively at

MightySat Results in Two Easy Steps


Optional Bluetooth® capability


Pulse Oximeter

The iSpO2 pulse oximeter comes in six versions—small and large options for the lightning and 30 pin connectors (iOS devices) and micro USB (Android devices). The iSpO2 Masimo Personal Health app coupled with your iSpO2 pulse oximeter allows you to track and trend your blood saturation (SpO2), pulse rate (PR), and Perfusion Index (PI).

  • > Signal I.Q.® to assess measurement confidence
  • > Operates with either iOS or Android devices
  • > Ability to email up to 12 hours of measurement history and share that data through email
  • > Portable, lightweight and comes with a carrying case
  • > Measures oxygen saturation and pulse rate during movement, even under challenging situations  such as low blood flow to the finger
  • > One year limited warranty

iSpO2 Results in Three Easy Steps

Connect iSpO2 to device

Place sensor on finger


Product Comparison

Device Compatibility

Compatible with Android Jelly Bean and Above

  • > Samsung Galaxy Note II
  • > Motorola RAZR M
  • > Samsung Galaxy S3, S4, S5
  • > Nexus 7
  • > Nexus 10
  • > Samsung Galaxy Note 10 (2014 edition)

Compatible with iOS v6.0 and Above

  • > iPad Air
  • > iPhone 5
  • > iPhone 5S
  • > iPad (3rd generation)
  • > iPhone 4S
  • > iPod touch (4th generation)
  • > iPhone 4