I also really quite like the Fitbit Air. I used to wear a Galaxy Watch but there's something really freeing about how light and unobtrusive this little wristband is.
I'm enjoying it for the same reasons. Longer battery life. More comfortable when I'm sleeping since it has no buttons or weird bulky shape.
I do wish Apple would make their own version of it with apple pay.
The reviews were ~90% 1 & 2 star within the first month of the FitBit Air release.
Three months later, the app has improved to ~80% 1 & 2 star reviews. At this pace, they'll be on v3 of the device when app reviews are decent...
They force everyone to move over to a different app when the replacement app doesn't have all the features/reliability of the old app.
Genius.
Garmin released the Cirqa band at $199 w/o compulsory subscription a few weeks ago. I may switch to that if the FitBit Air acts up.
I'm not sure if proper Apple Health would help with this but Google tends to be delayed at automatic recognition of activities (e.g. I take a walk it can be an hour or two until it processes automatically). Apple would recognize a walk as I was on it.
I had a FitBit Charge 4 some years ago, but it stopped working after a couple years.
Then I got a RingConn 2 last year, but like TFA I've decided that I don't like the ring form factor.