Lucky portable wireless fish finder

Has anyone every used one of these casting fish finders? I saw a guy using one and he let me play around with it. It was marking fish and getting accurate depth readings. Was curious if anyone else had experience with specific “Lucky” models. They sell a few different models on Amazon ranging from $ 65-140. I know you get what you pay for but the big question do they last?!?

Is that like the deeper ones? I think Garmin makes a castable one too. Seems like a cool idea, but a regular striker 4 is only like $120 or so. Many of us here use the Striker 4 - they work pretty well on a kayak.