Fitbit rolling out Charge 4 update with on-device SpO2 app

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Fitbit Debuts Sense, Its Most Advanced Health Smartwatch; World's First With EDA Sensor for Stress Management,1 Plus ECG App,2 SpO2 and Skin Temperature Sensors

The Fitbit Charge 4 and Fitbit Inspire 2 receive new features in their latest software updates - News

Fitbit Announces Charge 4 Fitness Tracker With GPS for $149.95

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Fitbit Charge 4 update now shows blood oxygen level on your wrist

Fitbit Charge 4 update shows SpO2 data on the band itself, tracks skin temperature - news

Fitbit Update: Charge 4 Band Can Now See Saturation Levels of Blood Oxygen

Solved: Estimated Oxygen Variation graph is broken - Fitbit Community

Fitbit Charge 6 Fitness Tracker with Google apps, Heart Rate on Exercise Equipment, 6-Months Premium Membership Included, GPS, Health Tools and More, Obsidian/Black, One Size (S & L Bands Included)