[Paddlewise] GPS

I need to buy a GPS to use kayaking in Mexico and the US.
I don't need a ton of fancy stuff that I will never use.
I would like to be able to read it without my reading glasses.
Of course, I want it as waterproof as possible.
Does anybody have an opinion on which is the best brand and model?
I don't care if the design was copied from a competitor.
Thank you in advance for your comments.
Jeff,
Veracruz, MX

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