The Garmin Venu 2s had the highest percent of underestimated readings (67.4%), wherein the device-reported SpO2 value was lower than the clinical-grade pulse oximeter SpO2 value minus a 2% error (Fig 2). Fig 1.

If you turn on Pulse Ox tracking for sleep or all-day, battery life between charges will be reduced. Various factors contribute to battery life, including usage patterns, customization settings, activity level, fit on the wrist, and the user's physical characteristics.

This. Number represents your most recent blood oxygen saturation percentage. And the graph shows your hourly average recordings for the last 24 hours you'll also see the current elevation scale.

What do certain pulse oximeter readings mean? A resting oxygen saturation level between 95% and 100% is regarded as normal for a healthy person at sea level. At higher elevations, oxygen saturation levels may be slightly lower.

Hours you'll also see the current elevation scale. And a graph of your elevation readings for the last 24. Hours this will let you see how your pulse ox readings are changing relative to elevation.

Generally speaking, this value should be 95% or higher in most settings, but this value can be influenced by altitude, activity and an individual's health. Numbers below 90% may be considered low, according to the Mayo Clinic.

On strenuous climbs, the watch's Pulse Ox Acclimation sensor provides additional information. This sensor uses light beams to gauge the absorption of hemoglobin in your bloodstream, so you can assess how well your body's oxygen levels are adjusting to the thinner air at higher altitudes.

GPS: When enabled you will see a higher battery use, which is why GPS tracking is only activated during activities or navigation. Music: Controlling music being played on your phone, downloading music over Wi-Fi, and playing music stored on the watch will contribute to higher battery use.

Generally speaking, this value should be 95% or higher in most settings, but this value can be influenced by altitude, activity and an individual's health. Numbers below 90% may be considered low, according to the Mayo Clinic.

Blood Oxygen Levels by Age Using a Pulse Oximetry Chart

95% Generally speaking, this value should be 95% or higher in most settings, but this value can be influenced by altitude, activity and an individual's health. Numbers below 90% may be considered low, according to the Mayo Clinic.

When you're not exercising, the oxygen saturation level is between 95% and 99%. Ideally that level should stay above 92% during exercise to keep the proper pressure of oxygen in the blood. Always read & follow the instructions for use & health warnings. Consult your health professional to evaluate the readings.