Pengaz vs Fitbit
This is my sixth band for my Fitbit Flex and the first not from Fitbit.  When I clasp the band, it doesn't click, so I am not always sure that it is properly attached.  It has never fallen off, so the non click is not a problem.  Also, original Fitbit bands window is the same color as the bands, so the lights appear as the color of the band.  The Pengaz band shows a clear window.  Again, not a big deal, but different.  For the price, and the color choices, I an very pleased.
Rating: 4 stars