Question 1

Which is better, Masimo MightySat Rx or Zacurate Pro Series 500DL?

Accepted Answer

Both products scored 8.5/10 in our testing — it's a tie. Choose based on which features matter most to you.

Question 2

Is the Masimo MightySat Rx worth it over the Zacurate Pro Series 500DL?

Accepted Answer

The Masimo MightySat Rx scores 8.5/10 while the Zacurate Pro Series 500DL scores 8.5/10. The Masimo MightySat Rx is our "Best Overall" pick in the Best Fingertip Pulse Oximeters 2026 category.

Masimo MightySat Rx vs Zacurate Pro Series 500DL: Which to Buy?