18 Oximeters Evaluated | Last Updated: 4/28/26
Continuous Oximeter Database
Rigorous accuracy data and hands-on reviews to help you find the perfect overnight oximeter for your health. This page contains affiliate links.

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18 Oximeters Evaluated | Last Updated: 4/28/26
Rigorous accuracy data and hands-on reviews to help you find the perfect overnight oximeter for your health. This page contains affiliate links.
How to use this tool: Use the sidebar filters to narrow down the exact hardware features you need, and use the sorting dropdown to organize devices by everything from Battery Life to Signal Stability. For our accuracy metrics, we don’t just guessโevery device that allows raw data access undergoes rigorous, second-by-second overnight testing against an industry gold-standard reference oximeter (the Nonin 3150).
Here is a quick guide to the metrics youโll see on the cards:
What it is: A 0 to 10 score representing a device’s total data reliability. It is a weighted grade combining General Stability (30%), ODI-3 (20%), ODI-4 (20%), Nadir (20%), and T90 (10%).
Why it matters: If you just want the bottom line, this is it. The closer a device scores to a perfect 10, the closer its data matched our professional gold-standard benchmark.
What it is: The device’s tendency to systematically read your oxygen higher (positive bias) or lower (negative bias) than reality.
Why it matters: A device that always reads too high (optimistic) might falsely reassure you and hide real oxygen drops, while one that reads too low (pessimistic) might cause unnecessary panic. A bias close to 0% is perfect.
What it is: The exact percentage of the night the device’s readings stayed within a strict 2% margin of error compared to the reference oximeter.
Why it matters: High stability means the sensor tightly hugs the truth all night long without wandering or dropping the signal. Low stability means the data drifts unpredictably while you sleep.
What it is: A measurement of how accurately the device catches sudden drops in your blood oxygenโmild drops (3%) and severe drops (4%) lasting 10 seconds or more.
Why it matters: Catching these drops is the main reason people buy sleep oximeters. If a device misses them, it fails to give you an accurate picture of your nighttime breathing patterns and potential sleep interruptions.











