The iHealth Wave is a wrist worn activity tracker which can also track swimming. The smartwatch comes in a wrist band but it can also be removed to be worn in a pocket.For swimming tracking the Wave is built to handle up to 30 meters depth.For day to day use steps, calories and distance can be seen at a glance. Sleep tracking is also an option. To jump between readouts the watch simply needs to be twisted on the wrist. There are no buttons or touchscreen controls.