
So far so good. I just got a Fitbit Sense to replace my Versa2. I had a lot of Versa2 bumpers so I ordered some Sense bumpers. I'm still in the process of getting to know my new Fitbit so haven't used them in a while but they seem to fit and work well just like any others I've had. I can use buttons and other functions well. I'm not sure yet if I should read SPO2 but I don't care. I can take it off easily enough to take measurements if needed. The need for a bumper is more important than this minor inconvenience. I have tried many brands and they are all pretty much the same. I expect them to work like everyone else. If I experience anything particularly good or bad I will come back to update.

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