My old Fitbit Flex-bracelet was broken by bending for the charging of the sensor. In an original set of three brightly colored I had no desire. It also needs to be unobtrusive to wear while working. The Mofun band does the job here. The buckle closes properly and safely. But it makes a somewhat inflexible impression than the original. My estimates here with an even earlier break, although this has not yet occurred. For the money, but acceptable. A difference from the original is still that the viewing window is not tinted. The diodes illuminate something brighter. But that does not really bother. Therefore: buy recommendation.