Can't say. It would come down to features each one has and which ones you need. Also how it mounts., like stand alone or designed to clip onto a laptop or monitor screen. Next would be price and how much you wanted to spend, then product availability in your area. You might need it in one day, but local stores or shipping might not have your choice available that fast. If you can see it working at a local computer store, like Best Buy, Staples or Microcenter then you can tell which one works best. Some have wider field of view.