I bought a few of these to use with my Fitbit One. I was having a problem with my Fitbit falling out of the sleep strap and was getting tired of playing find the Fitbit in the morning, so decided to try this instead. It works perfectly for me. If you like to be able to see the fitbit display screen then it would be annoying, as it is fully enclosed. After the first wash, it lost a lot of color and became a little tattered looking, so not amazing quality, but enough for what I need. I also bought other wristbands to use while running. It is able to hold a few cards, cash and keys.
Rating: [5 of 5 Stars!]