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Travel Himalaya Nepal
Fingertip pulse oximeter — A trend to watch, not a number to trust
Useful with caveats

A trend to watch, not a number to trust

Fingertip pulse oximeter

SpO2 and pulse, fingertip clip

Useful for spotting a trend across several mornings, and actively dangerous if you treat a single reading as a verdict — cold fingers alone can drop a reading by several points, and consumer devices are not calibrated for 5,000 m.

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What you get

  • A falling trend over days is genuinely informative
  • Costs very little and weighs nothing
  • Your guide can use it as one input among several

What it costs you

  • Cold hands produce alarming, meaningless numbers
  • Not accurate at the altitudes it is bought for
  • Encourages self-diagnosis, which is the real risk

Do not buy this if: Anyone who would use it to overrule how they feel or what a guide says. Symptoms decide; the number does not.

Treks we recommend this for

Not every route needs it. These are the ones where our guides would put it on your list.

The alternatives

Everything else we recommend in altitude & medication, including the ones we think suit a different trekker.