Motionize is another sensor that attaches to a variety of objects, such as a kayak paddle, to capture related metrics. The sensor measures stroke length, distance per stroke, speed, heart rate and more. Another component attaches to the front of the kayak and holds an iPhone so you can see the associated app while you row. The kayak attachment also has a Bluetooth speaker that can be used to deliver coaching cues to the rower, such as advice on stroke adjustment or paddle position. Motionize is available for preorder through the company's Website.