# Zacurate Pro Series 500DL vs iHealth Air PO3M: specs and price compared

A sourced, side-by-side comparison of the Zacurate Pro Series 500DL (Zacurate) and iHealth Air PO3M (iHealth Labs) among pulse oximeters. Zacurate Pro Series 500DL is the cheaper of the two at $19.99.

## Side by side

| Spec | Zacurate Pro Series 500DL | iHealth Air PO3M |
| --- | --- | --- |
| US price | $19.99 | $69.99 |
| Brand | Zacurate | iHealth Labs |
| Spo2 range | 0-100% | 70-99% |
| Spo2 accuracy percent | ±2% (70-99%) | ±2% (70-99%) |
| Pulse rate range bpm | 25-250 bpm | 30-250 bpm |
| Display type | LED numeric display | Bright LED numeric display |
| Perfusion index | No | — |
| Continuous monitoring | No | No |
| Bluetooth | No | Yes |
| Battery life hr | 35 | — |

## Key differences

- Spo2 range: Zacurate Pro Series 500DL 0-100% vs iHealth Air PO3M 70-99%
- Pulse rate range bpm: Zacurate Pro Series 500DL 25-250 bpm vs iHealth Air PO3M 30-250 bpm
- Display type: Zacurate Pro Series 500DL LED numeric display vs iHealth Air PO3M Bright LED numeric display
- Bluetooth: Zacurate Pro Series 500DL No vs iHealth Air PO3M Yes

## Sources

- Zacurate Pro Series 500DL: https://zacurate.com/products/500dl-fingertip-pulse-oximeter-black (zacurate.com, verified 2026-08-01)
- iHealth Air PO3M: https://support.ihealthlabs.com/hc/en-us/articles/8499453953677-FAQ-Technical-Specifications-for-the-iHealth-Air-Wireless-Pulse-Oximeter-PO3 (support.ihealthlabs.com, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/pulse-oximeters/zacurate-pro-series-500dl-vs-ihealth-air-po3m/
Cite: Per The Front Desk Review, Zacurate Pro Series 500DL ($19.99) vs iHealth Air PO3M ($69.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/pulse-oximeters/zacurate-pro-series-500dl-vs-ihealth-air-po3m/
License: CC BY 4.0.