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Zacurate

Zacurate 500E Fingertip Pulse Oximeter

  • SpO2 and pulse rate, readable at low blood perfusion
  • 6 display layouts, dual color OLED, rotatable
  • Rarely over 1% deviation in lab conditions, maker claim
  • 30 hours battery life, 2 AAA batteries included
  • 18 months warranty
  • Cover and lanyard included
  • Sports and aviation use only, not a medical device

Updated 20 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A fingertip oximeter with a rotating OLED screen that a caregiver can read, plus a pulse waveform to judge signal quality. The maker labels it for sports and aviation, not medical use.

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ASIN: B01DAWVGUMModel: 500ECategory: Pulse Oximeters

Overview

Clip it on, press the button, and the Zacurate oximeter reads blood oxygen saturation and pulse rate at the fingertip within seconds. An upgraded LED and sensor aim for readings even at low perfusion, and the OLED screen rotates to face either the wearer or a helper.

Flexible display orientation is what sets this model apart in daily use, letting a helper read results without twisting the wearer's hand. Accuracy claims come from the maker's lab conditions, and the device is sold for sports and aviation, not diagnosis.

Who it's for

Mountain trips, ski days and flights are where a quick fingertip oxygen reading helps. Patients who need a certified medical monitor should get one from their care provider instead.

Pros and cons

Pros
  • Display rotates to face a caregiver
  • Pulse waveform shows signal strength
  • Batteries included, ready out of box
  • Protective cover and lanyard included
Cons
  • Not a medical device per maker
  • Accuracy claim based on lab conditions
  • Finger size range not listed

Performance notes

Reading quality depends on finger placement under the LED and on blood flow in the fingertip. The waveform amplitude shows signal strength, and a low wave means perfusion is too weak and the reading should be retaken.

Specifications

BrandZacurate
Model500E

Frequently asked questions

Will the Zacurate 500E work on small or child fingers?

Zacurate does not list a finger size range or minimum age for the 500E. Placement matters: the finger must be positioned right under the LED lights for a reliable read.

Is the Zacurate 500E a medical device?

No. The description states it is not a medical device and should be used for sports and aviation only.

Can someone else read the Zacurate 500E screen?

Yes. A button press switches the OLED display between layouts, including ones that face a caregiver.

What does the wave on the Zacurate 500E screen mean?

Each wave matches a heartbeat and its height reflects blood flow. A low wave means perfusion is too low for a reliable read, so retake the measurement.