App showing multiple phones have accessed my device

[SunsetRunner]

 

In the app under authorized devices it shows multiple phones having accessed my device. I have only ever used my current iPhone. Is it safe to revoke access to all the others and why are they there in the first place? 

[JohnnyRow]

I just looked at mine for the first time, and I have many dozens listed there, from current phone, an older phone I used, many from Windows Firefox ( when I access this board on PC), etc.  They look like they are all me, and I have never had any security issues with this.  Though it says "currently logged in", it looks to me like it is "ever logged in" without noting logged out.

I expect your entries are all you, from the Fitbit app, Safari, and Chrome browsers with different entries for different apps even if on same phone.  It might make a new entry for each day, or each day you log in, to make sure it shows the latest, without erasing older entries for same device.

That said, I'm not making any guarantees but I'm not concerned about mine.  If concerned, you could try deleting an older one and see what happens.