Mares Smart Wrist Dive ComputerSmart Wrist Dive Computer The Smart is the quintessential dive computer! Add together the superior sharpness of segmented characters, a perfectly laid out display, ergonomic buttons and a slim profile and you'll get the smartest computer on the market! Smart replicates the excellent display of the Puck Pro, adding an additional button, buttons repositioned to the side, all packaged into a much slimmer profile. On the surface, adjust your nitrox