fitbit users

Love it. I have the Fitbit 1, but my husband has the flex. I loved not having to take off the flex, but it was kind of bulky and it wouldn't pick up my steps if I was pushing a shopping cart or holding certain things. The One is nice because it also does stair counts which the flex does not. I wore them both for two weeks, there wasn't a significant difference in counts other than my shopping trips!