Question 1

Which is better, Masimo MightySat Rx or Wellue FS20F?

Accepted Answer

Based on our testing, the Masimo MightySat Rx scores higher overall at 9.5/10. The Masimo MightySat Rx scored 9.5/10 and the Wellue FS20F scored 9.1/10 in our Best Pulse Oximeters 2026 evaluation.

Question 2

Is the Masimo MightySat Rx worth it over the Wellue FS20F?

Accepted Answer

The Masimo MightySat Rx scores 9.5/10 while the Wellue FS20F scores 9.1/10. The Masimo MightySat Rx is our "Best Overall" pick in the Best Pulse Oximeters 2026 category.

Masimo MightySat Rx vs Wellue FS20F: Which to Buy?