Which one will stand the test of time for centuries (100+) or millenia (1000+) if left unattended in terms of the overall durability of books? A Kindle (uncharged) or a physical copy in hardcover?

I mean, can you just leave your Kindle unattended without charging it until the year 2156 or 7901? (Let the device sit there for the next 132 years or 5877 years, would the battery even last that long at all? You won't even be alive at this point, unless you've passed it onto your descendants.) If you've charged it: By then, would the app still have their servers running at this point, even if Amazon is still around but Bezos won't be alive this far ahead of time. If the app is no longer working or has shut down, then it would just be a useless tablet meaning that you've lost access to all of your books.

If you have library filled with physical copies of books and preserved them so well that they might as well appear as brand new, depending on the books in question (noting that they're hardcover first editions, depending on the author if they're famous – a signed copy can have an impact on it's value): they could be worth a lot of money (if that book is now deemed out of print but was a bestseller back in the day, just lost in time.) or deemed very rare or considered an antique (as evident today with some of the limited copies of books that are published hundreds of years ago.)

For example, If you've preserved all Harry Potter books (Hardcover, First Edition, signed.) in pristine condition, would it have any value in the next 100 years if you were going deem them as antiques? Despite people saying that a Kindle sounding convenient, can it last for the next 500-1000 years into the future given that if Amazon continues to exist, as like anything else digital you need a server to run them, if the support for Kindle has died this far into the future, then would a Kindle still have any valid purpose at this point if nobody is using it anymore?

In terms of physical books, they are also susceptible to damage if there's a lack of proper care or maintenance like everything else. But if an avid collector manages to take care of their library (meaning that they kept all the pages pure white as much as possible, little to no signs of wear and tear or other signs of aging.) really well, than the books they have now (given that they come from well known authors or considered a bestseller) since hardcover phases out eventually as those books are getting re-released in paperback.