Garmin Brunei - Garmin Forerunner 245 music will estimates your body's blood oxygen saturation which can help gauge how your body is absorbing oxygen and track your body's energy levels to find
Garmin Forerunner 245 | In-depth review and opinion
Despite the SpO2 / pulse ox being not for medical use, I'm still disappointed in its accuracy. The pulse oximeter on my 245 is consistently out by 7-15%. Pretty much useless, even