[ame="http://www.amazon.com/Humminbird-SmartCast-Wrist-Waterproof-Fishfinder/dp/B0009PSA1M"]Amazon.com: Humminbird SmartCast RF35 Wrist Mount Waterproof Fishfinder: GPS & Navigation[/ame]
hummubirs smart cast. I have it for shore and kayak fishing. Works well if you learn how to use it. Don't show to much detail but enough. My experience was if I find fish with it, it would guarantee I got some bites. Sometime the depth and bottom structure is right but fishes were hide between rocks, directly on the bottom. The fish finder did not show them. It also would mistake floating branches or grass as fish when the current is fast.