Review on 🐠 Garmin 010-01550-00 Striker 4 GPS Fishfinder: Chirp Transducer and 3.5" Display by Robert Chandrasekar

It is not "portable" at all. I bought it for my kayak and stupidly didn't read all the reviews. First, it requires a 12V battery, or you can buy a Nocqua battery pack for an extra $90 with extra wires ($20). The mount has no suction and cannot be installed on a kayak without purchasing additional mounting brackets (from $35). The screen is not waterproof and not suitable for salt water immersion where splashes may occur. It may be ideal for pond fishing, but no more. All in all, you will spend over $240 to activate and install it. Needless to say, I got mine back.