Comes with a very large band. Has an underneath band clasp, hard to get used to unless you've dealt with one prior. Simple design makes it a slick match for casual or event's. Easy to set up & get running. I've seen some that take 10-15 steps before it'll start. Large band: if your not used to screwing around with them, them take it to a jeweler & they can fit it w/o scratching for 5-10$. Peace