BE WISE WITH THAT SIZE – With eight width options, our straps fit nearly any size watch. But you MUST have the right size! To find it, measure the space between the two points on your watch face where the strap connects. That mm width is your size. See our handy illustration, and the list of smartwatch widths in the product description below (helpful for Fossil, LG, Pebble, Nokia, Withings, and more). You can also check directly with your watch manufacturer’s website for a specific size.