Quote:
Originally Posted by finiderire
-a reader than can goes in summer heat and direct sunlight (40°C) as the current one had the e-ink screen turning slowly darker (until I would not be able to distinguish letters from the background) when under hot sunlight.
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This only happened on a small number of devices that had a manufacturing flaw - they forgot to include an IR filter of something.
The vast majority of e-ink readers can be read under the hot noon sun for hours without turning dark. If your reader behaves otherwise, immediately make a warranty claim.
As for ruggedness, I do not think there are any really rugged e-ink readers. I personally use a sturdy case and so far all my readers survived for years. And wherever I go, my reader goes with me ;-). I have even used an e-ink reader in an Infra sauna ;-)
As for ruggedness of the charging port ...
You only need to charge your reader once a month. Even if it was every two weeks, you only need to connect it 50 times per year. I think that even flimsiest microUSB connector should survive several hundred uses, if you handle it carefully.
The last e-ink reader with a separate round charging port (that I am aware of) was Sony PRS500 - the very first 6" e-ink reader available for general public outside Japan. It even came with a charger with round connector.