Forerunner 245's pulse ox inaccurate? 90% is not normal for someone who doesn't smoke and who's not out of breath. Plus most of the time they struggle to get a reading. What's
Line Garmin Lily Smart Watch Women Heart Rate Monitor Pulse Oximeter Sensor Accelerometer Ambient Light Sensor TFT LCD Touchscreen Bluetooth 120 Hour 1.34 Rose Gold Light Sand Case - Office Depot