Fitbit Charge 4 Gets Dedicated App for SpO2 Data

Fitbit Charge 4 was already capable of providing SpO2 readings, but these were only available in the mobile companion app.

But thanks to a new firmware update released this week, the activity tracker now comes with a dedicated on-device app in this regard, thus providing users with SpO2 values after waking up.

The new firmware version is 1.100.34, and once installed, you should be able to see a SpO2 tile when you swipe up from the main screen with the clock.

Fitbit confirms in the official release notes of this new firmware update that blood oxygen saturation readings are available as part of a dedicated app:
 

  • Your Fitbit device can now estimate your blood oxygen saturation (SpO2) while you sleep.
  • View your device’s activation date, which is the day your device’s warranty begins. The activation date is the day you set up yo… (read more)

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