Best Reader to display data from webbapp

Hi all,

Im really new to the E-ink readers but I built this webb-app which displays data from sensors based on my sailboat (data is gathered from RPI) then I’m showing the data on a Kindle.

I found an old Kindle touch (from 2011!?) which works but the display rendering is kind of ugly/slow. Im currently disabling the screen saver by ”~ds” in the search window, I tested on a Kobo which was a complete different story :D .

So im wondering if the panel has som input to which model I should get. Any out of the box reader or are there hackable once?

Some requirements:
Need to have
Backlight
Disable screen saver
Browser
Connect to a wifi even tho wifi is missing internet connection

Nice to have
Fullscreen browser mode possible to start via website, I assume a full screen mode should disable screen saver?
Water resistant

I hope to be able to get a used version :)

The numbers are just simulated to test.

Best

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