What’s better: Humminbird PiranhaMAX 215 or 130 Fishin’ Buddy?

I’m interested in getting a portable fishfinder that I can use on rental boats. I’m thinking about getting a Humminbird PiranhaMAX 215 portable or 130 Fishin’ Buddy). I have also heard the the Eagle Cuda 168 was good too. Any other recommendations

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