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Pulse oximeters measure blood oxygen saturation (SpO₂) and pulse rate using a fingertip or wearable sensor. They help detect oxygen drops during illness, sleep, or physical activity.
| Model | Type | Connectivity | Best For | Key Strength |
|---|---|---|---|---|
| Zacurate 500DL | Fingertip | None | Everyday checks | Accuracy + value |
| iHealth Air PO3M | Fingertip | Bluetooth | Trend tracking | App integration |
| Wellue O2Ring | Wearable ring | Bluetooth | Overnight monitoring | Continuous tracking |
| ANKOVO Fingertip | Fingertip | None | Budget users | Simple + reliable |
| Contec CMS50D | Fingertip | None | Basic use | Durable + consistent |
| Pro Pulse Oximeter | Fingertip | None | Clinics/caregivers | Professional durability |
