A:Answer We don't have wrist size ranges for either watch, but the smaller watch has a total length of 2.05" and the larger has a total length of 2.25". This, of course, includes the buckle. The watch bands have notches running almost the entire length of the band, so they fit virtually ANY wrist size. One important note: the larger version has a wider band and a larger watch face. Although the larger watch fits on my narrow wrist, it looks a bit unwieldy. The small still fits me just fine, but the narrower band and smaller face look more appropriate for my wrist. -JPK