Masimo
Masimo MightySat Rx (Bluetooth LE)
$549
Best Pulse Oximeters · head-to-head
Masimo MightySat Rx (Bluetooth LE) vs iHealth Air PO3M
A sourced, side-by-side comparison. iHealth Air PO3M is cheaper at $69.99. Every spec and price links to its source.
iHealth Labs
iHealth Air PO3M
$69.99Cheaper
Which is better: the Masimo MightySat Rx (Bluetooth LE) or iHealth Air PO3M?
On the specs we track, they're closely matched. The iHealth Air PO3M is the cheaper at $69.99.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Masimo MightySat Rx (Bluetooth LE) |  iHealth Air PO3M |
|---|---|---|
| US price | $549 | $69.99 |
| Brand | Masimo | iHealth Labs |
| Released | — | — |
| Spo2 range | 0-100% | 70-99% |
| Spo2 accuracy percent | 70-100% Arms: ±2% no motion, ±3% motion, ±2% low perfusion | ±2% (70-99%) |
| Pulse rate range (bpm) | 25-240 bpm | 30-250 bpm |
| Display type | Rotating, adjustable 3.3 cm color display with pleth waveform and Signal IQ indicator | Bright LED numeric display |
| Perfusion index | Yes | — |
| Continuous monitoring | No | No |
| Bluetooth | Yes | Yes |
| Battery life (hr) | 15 | — |
Sources — Masimo MightySat Rx (Bluetooth LE): cardiacdirect.com (verified 2026-11-05). iHealth Air PO3M: support.ihealthlabs.com (recorded 2026-08-01).
What's the difference between the Masimo MightySat Rx (Bluetooth LE) and iHealth Air PO3M?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Spo2 range: Masimo MightySat Rx (Bluetooth LE) 0-100% vs iHealth Air PO3M 70-99%
- Spo2 accuracy percent: Masimo MightySat Rx (Bluetooth LE) 70-100% Arms: ±2% no motion, ±3% motion, ±2% low perfusion vs iHealth Air PO3M ±2% (70-99%)
- Pulse rate range (bpm): Masimo MightySat Rx (Bluetooth LE) 25-240 bpm vs iHealth Air PO3M 30-250 bpm
- Display type: Masimo MightySat Rx (Bluetooth LE) Rotating, adjustable 3.3 cm color display with pleth waveform and Signal IQ indicator vs iHealth Air PO3M Bright LED numeric display