# Wellue O2Ring vs iHealth Air PO3M: specs and price compared

A sourced, side-by-side comparison of the Wellue O2Ring (Wellue (Viatom)) and iHealth Air PO3M (iHealth Labs) among pulse oximeters. iHealth Air PO3M is the cheaper of the two at $69.99.

## Side by side

| Spec | Wellue O2Ring | iHealth Air PO3M |
| --- | --- | --- |
| US price | $152.9 | $69.99 |
| Brand | Wellue (Viatom) | iHealth Labs |
| Spo2 range | 70-100% | 70-99% |
| Spo2 accuracy percent | ±2% (80-100%), ±3% (70-79%) | ±2% (70-99%) |
| Pulse rate range bpm | 30-250 bpm | 30-250 bpm |
| Display type | On-ring digital display with app-adjustable brightness | Bright LED numeric display |
| Perfusion index | — | — |
| Continuous monitoring | Yes | No |
| Bluetooth | Yes | Yes |
| Battery life hr | 16 | — |

## Key differences

- Spo2 range: Wellue O2Ring 70-100% vs iHealth Air PO3M 70-99%
- Spo2 accuracy percent: Wellue O2Ring ±2% (80-100%), ±3% (70-79%) vs iHealth Air PO3M ±2% (70-99%)
- Display type: Wellue O2Ring On-ring digital display with app-adjustable brightness vs iHealth Air PO3M Bright LED numeric display
- Continuous monitoring: Wellue O2Ring Yes vs iHealth Air PO3M No

## Sources

- Wellue O2Ring: https://getwellue.com/products/o2ring-wearable-pulse-oximeter (getwellue.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/wellue-o2ring-vs-ihealth-air-po3m/
Cite: Per The Front Desk Review, Wellue O2Ring ($152.9) vs iHealth Air PO3M ($69.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/pulse-oximeters/wellue-o2ring-vs-ihealth-air-po3m/
License: CC BY 4.0.