In addition, this one which most do not have has a barometer built into it, there's a sensor in here that can actually measure your height, a change from a specific location. You can reset it to zero right here somewhat within a given tolerance, and you can also see the barometric pressure. That is something that has not shown up before on these watches and makes the L okay zero one really unique. In addition, you have your fitness activities and all the ones that rely on distance like walking and running and biking are indeed tied to GPS. With this watch.