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

High-performance Technology For High-performance Athletes.

WebMD - Interview with Joe Kiani, Dotsie Bausch & Stig Severinsen

CES 2015 - Elite Athletes Use MightySat as Part of Their Training Regimen

Fox5 San Diego – Take Your Workout to the Next Level with MightySat

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) and pleth variability index (PVI)
  • > 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.


Available exclusively at

MightySat Results in Two Easy Steps


Place sensor on finger

Get measurements

Optional Bluetooth® LE 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).


Available exclusively at

iSpO2 Results in Three Easy Steps

Connect iSpO2 to device

Place sensor on finger

Get measurements

Product Comparison

Device Compatibility

Compatible with iOS 7 and 8

  • > iPad Air 2
  • > iPad Air
  • > iPad 4
  • > iPad 3
  • > iPad 2*
  • > iPad Mini (3rd generation)
  • > iPad Mini (2rd generation)
  • > iPad Mini (1rd generation)
  • > iPhone 6 Plus
  • > iPhone 6
  • > iPhone 5C
  • > iPhone 5S
  • > iPhone 5
  • > iPhone 4S
  • > iPhone 4*
  • > iPod touch (5th generation)

Compatible with Android Jelly Bean**, KitKat, and Lollipop

  • > Samsung Galaxy Note 10 (2014 edition)
  • > Samsung Galaxy Note 4
  • > Samsung Galaxy Note 3
  • > Samsung Galaxy Note II
  • > Nexus 9
  • > Nexus 7
  • > Nexus 6
  • > Nexus 5
  • > Samsung Galaxy S5
  • > Samsung Galaxy S4
  • > Samsung Galaxy S3
  • > Huawei Ascend Mate 7
  • > Droid Mini
  • > Motorola RAZR M

1 All studies available at http://www.masimo.com/cpub/clinical-evidence.htm

 * No support for Bluetooth LE required for MightySat

** No support for Bluetooth LE with Jelly Bean 4.1 and 4.2 required for MightySat