@DCmega yes arrow is actigraphy… in fact SPO2 integration is relatively new and we do not even know which devices are supported - we rely here on user feedback as we do not have all the devices on our desks and SPO2 needs to be implemented one by one…
There is a thread why we do not have SPO2 for Amazfit and Mi Bands yet… - because we only have raw LED light data and we were not yet able to calculate good looking SPO2 from that…
In general SPO2 is supported on selected Wear OS device - some TicWatch devices and some Fossil watches… if users want support they need to provide us with logs first as SPO2 sensors are not standard on Wear OS so we need to explicitedly add support for each device. At the moment we do not have SPO2 on Galaxy Watch 4 as Samsung did protect access to SPO2 sensors with their system only permission.
We should also have some SPO2 support for Garmin, but we do not have a Garmin SPO2 enabled device and there isn’t enough user feedback to claim that for sure - so this is now implemented only blindly…
One device that supports actigraphy, HRV and SPO2 is TicWatch 3 Pro which I’m using now, but unfortunately not at the same time, you have to choose SPO2 or HRV for each session as the sensor is switching from red LEDs to green LEDs and is not able to provide both at the same time.
@SpiffyMcPerson many thanks for the summary - I think it is pretty close, please just check my answer above…
We will update the docs with the findings in this thread, this is unfortunately work in progress, there is very little standards and every device needs special implementation 