iSpO2® Pulse Oximeter

Better Data = Better HealthTM
Better Data = Better PerformanceTM

The iSpO2® Pulse Oximeter measures:


Oxygen level in the blood to indicate changes due to heart or lung, oxygen use by your body, or altitude


Number of heart pulses per minute to indicate overall fitness or exertion levels at any time


Strength of blood flow to the finger to indicate changes in blood circulation

Accurate When You Need it Most

The Leading Hospital-Grade Technology

Masimo pulse oximeters are the leading brand in hospitals because of Signal Extraction Technology (SET®), which provides accurate measurements when other hospital-grade pulse oximeters fail – during movement and low blood flow.

The Masimo Accuracy Advantage

Performance Index of Oxygen Saturation During Movement and Low Blood Flow *¹

Performance Index of Pulse Rate During Movement and Low Blood Flow*¹

Masimo Personal health - iSpO2 iPhone6 Lightning

Flexible and Easy-To-Use:

  • The iSpO2® pulse oximeter comes in four versions – small and large options for the lightning connectors (iOS devices) and micro USB (Android devices)
  • Operates with either iOS or Android devices
  • Masimo Personal Health App coupled with your iSpO2 pulse oximeter allows you to track and trend your oxygen saturation (SpO2), pulse rate (PR), and perfusion index (Pi).
  • Portable, lightweight and comes with a carrying case
  • One year limited warranty

iSpO2® Results in Three Easy Steps

Connect iSpO2® to device

Place sensor on finger

Get measurements

Click below to learn about the Masimo Personal Health App

Masimo Personal Health App
  • iSpO2® Pulse Oximeter with Lightning Connector for iOS Device

    Add to cart
  • iSpO2® Pulse Oximeter with Micro USB Connector for Android Device

    Add to cart
  • MightySat Fingertip Pulse Oximeter with Bluetooth LE, RRp, & PVi

    Add to cart


1. Shah N et al. J Clin Anesth. 2012;24(50):385-91.

* Testing was conducted on 10 healthy volunteers with machine and volunteer-generated hand motion. Measurements from both technologies were compared to reference measurements from a stationary hand. Performance indexes were calculated for both oxygen saturation (defined as the duration of time within 7% of reference) and pulse rate (defined as the duration of time within 10% of reference). The percentages shown were calculated by averaging the performance indexes for machine- and volunteer-generated hand motions.