Because it is so difficult to arrange the pulse data, even Chinese bracelets are more accurate. I just used a standard oximeter and gave the garmin 745 98% always 93% with an adjusted strap.
Because it is so difficult to arrange the pulse data, even Chinese bracelets are more accurate. I just used a standard oximeter and gave the garmin 745 98% always 93% with an adjusted strap.
i do my SPO2 Measurement like this way (look on the video) and it works very good for my FR945:
https://support.withings.com/hc/en-us/articles/360013516317-ScanWatch-Video-How-to-record-oxygen-saturation-levels