I went through that research as a Xmas gift. Laptop is my preference, which does many of all the functions you describe. We have a local library that you can download free books. Was lucky enough to find a tablet after waiting for the right price to come along. Tablet has it's limitations but can download, and save it books.
Kindle is going out of fashion, so perhaps prices will be more favorable for you.. After looking into it, I found there be costs on top of buying the device. Membership fees, price of books, the freebies aren't the greatest. When I can obtain books from yard sales, all over for next to nothing.
Just my intake on the products. Of course a new basic sewing machine be interesting also..