healthrankings
Expert Review

Masimo MightySat Rx

Best Overall — Accurate During Respiratory Compromise + Alarm

HR
HealthRankings Team Reviewed by Dr. Maria Santos, MD
Rank #1 of All Pulse Oximeters
Score 9.6/10
Price $199
Rating Outstanding
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9.6
/10
HealthRankings Verdict
Masimo MightySat Rx — Best Overall — Accurate During Respiratory Compromise + Alarm
During an asthma attack, peripheral vasoconstriction and rapid breathing can cause standard pulse oximeters to produce unreliable readings. The Masimo MightySat's SET technology is specifically designed to maintain accuracy during motion, poor perfusion, and respiratory compromise — the exact conditions present during an asthma attack. Customizable SpO₂ alarm (set your personal threshold) alerts you before dangerous desaturation occurs. Respiration rate measurement provides additional clinical data. FDA Class II cleared.

How the Masimo MightySat Rx Performed

Accuracy during compromise
9.9/10
Alarm capability
9.7/10
Motion tolerance
9.8/10
Clinical grade
9.9/10

What We Liked & What Could Be Better

Strengths

  • SET technology — accurate during respiratory compromise
  • Customizable SpO₂ alarm threshold
  • Respiration rate — additional asthma data
  • Bluetooth trending for physician review
  • Accurate during motion (breathing effort)
  • FDA Class II cleared

Limitations

  • Premium price ($199)
  • Requires app for full features

At a Glance

TechnologyMasimo SET
AlarmYes — customizable
RRYes
Motion toleranceExcellent
FDAClass II cleared

The Bottom Line

9.6/10
Outstanding — All Pulse Oximeters

During an asthma attack, peripheral vasoconstriction and rapid breathing can cause standard pulse oximeters to produce unreliable readings. The Masimo MightySat's SET technology is specifically designed to maintain accuracy during motion, poor perfusion, and respiratory compromise — the exact conditions present during an asthma attack. Customizable SpO₂ alarm (set your personal threshold) alerts you before dangerous desaturation occurs. Respiration rate measurement provides additional clinical data. FDA Class II cleared.

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