I have been a Fitbit user since December 2009. I owned the original Fitbit, then the Fitbit Ultra, then Fitbit One, and now the Fitbit Flex.
Now that I have been using the Flex for about a month, I thought it would be a good time for a full review.
I have loved them all and Fitbit has continually upgraded and bettered the product with each release. My hope is the Flex is no exception. It is finally the "wear and forget" Fitbit. No longer do I forget to put it on, lose it in the yard, run it through the washing machine, etc…. You put it on your wrist and you are done. Wear it while working out, sleeping, showering, ….always.
But with this advance, there are a few concessions. Starting and stopping the sleeping mode is frustrating. Not counting stairs (and Fitbit not giving you a way to add manually) is disappointing especially since the last Fitbit (One) did this so well. The lack of status detail other than lighted dots on the Fitbit itself is quite an adjustment down from the One.
Finally is the frustrating quirks similar to those I had with the original Fitbit. For example, waking up in the morning and trying to stop the sleeping mode only to have the Flex not reacting to anything you do. Having to plug it into a computer to get it to light up and be useful again, and loosing all of the sleep data from that night. Makes me want to return to the Fitbit One. But I am trying to hold out and continue with the Flex.
I get the feeling that the Flex is a start over, and not a continuance of the previous models. Thus it has the version 1 issues. Buyer beware regarding the Flex. Let me introduce you to the Fitbit One.
Yesterday I put my Fitbit Flex in a box and via FedEx, sent it back for replacement. It would no longer react to the taps, nor would it count steps unless it was plugged in. Back to the Fitbit One for me until a replacement comes.