Contec Medical Systems
Contec CMS50D
$8.99Cheaper
Best Pulse Oximeters · head-to-head
A sourced, side-by-side comparison. Contec CMS50D is cheaper at $8.99. Every spec and price links to its source.
Contec Medical Systems
$8.99Cheaper
Beurer
$29.99
On the specs we track, they're closely matched. The Contec CMS50D is the cheaper at $8.99.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $8.99 | $29.99 |
| Brand | Contec Medical Systems | Beurer |
| Released | — | — |
| Spo2 range | 0-100% | 0-100% |
| Spo2 accuracy percent | ±2% (70-100%); ±4% under weak/low-perfusion signal conditions | ±2% (70-100%) |
| Pulse rate range bpm | 30-250 bpm | 30-250 bpm |
| Display type | LED display | Color OLED display with 4 selectable views |
| Perfusion index | No | — |
| Continuous monitoring | No | No |
| Bluetooth | No | Yes |
| Battery life hr | 24 | — |
Sources — Contec CMS50D: contecmedsystems.com (verified 2026-08-01). Beurer PO60: shop-beurer.com (verified 2026-08-01).
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.