Kneeboards have changed drastically over the last 15 years. Once used for charts and flight plan forms, kneeboards are now used to hold the most trusted navigational tool: an iPad, tablet, or phone. There are more options than ever, ranging from very basic to deluxe, so the decision can be a difficult one. In this new video, Sporty’s John Zimmerman compares four popular kneeboards, and offers his thoughts on the strengths and weaknesses of each one.