Your Fitbit Charge 4 will soon get a new app that will allow you to check your blood oxygen saturation (SpO2) right on your wrist any time you want, without having to grab your phone and open the Fitbit app.
We’ve known this feature was in the works since mid-February, when the company also announced that it was allowing owners of the Charge 4, Inspire 2 and Versa 3 to see trends from the previous week on their Fitbit Health Metrics Dashboard.
At the time we weren’t sure when the SpO2 app would begin arriving on the Charge 4, but as 9to5Google has spotted, a new firmware version is now rolling out that will finally give Charge 4 owners the extra tool.
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