Forerunner 245 Music, red light (SpO2) always on - Forerunner 245 Series - Running/Multisport - Garmin Forums
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Garmin Forerunner® 245 | Running Watch
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
Garmin Forerunner 265 Music GPS Running Smartwatch,Amoled Touchscreen, Battery Upto 13 Days, HRV Status & Advanced Sleep Monitoring, SPO2,Morning Report, Track Running, Cross Training with Black Band : Amazon.in: Electronics