US model overview

Zacurate 500B-B Blue with Bluetooth

Fingertip pulse oximeter with Bluetooth and an OLED display.

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What the blue Zacurate 500B-B displays

The screen shows estimated oxygen saturation, pulse rate, perfusion index, and a pulse waveform. The waveform shows the shape of the pulse signal, while PI describes its pulsatile component at the finger.

Display: OLED with SpO₂, pulse rate, PI, and waveform.
Connectivity: Bluetooth with Beyond Oximeter.
Reviewed variant: Blue Zacurate 500B-B.

Saving readings on your phone

Zacurate lists Beyond Oximeter for the 500B-B. Check phone compatibility and follow the pairing instructions. If you want to keep a result, confirm that it appears in the app.

Spot checks and recorded sessions

This fingertip clip is designed for taking individual readings. To review a longer period, compare the sensor and session length of ring and wrist pulse oximeters.

What can affect the signal

Sensor placement, hand temperature, and movement can affect the signal. Follow the instructions and see how to read the perfusion index.

What to check before buying

Check the Amazon.com listing for Zacurate 500B-B Blue with Bluetooth and the exact variant before ordering. Delivery and availability depend on the offer and your ZIP code.