Alll’s I know is I love my kindle. I don’t regret giving up phsyical copies of books. For me my music is in itunes and now my reading is on kindle. It’s plus is almost instant delivery. Books tend to be significantly cheaper. It’s easy to use and read. It’s a good bit of kit. ( I am a fan! )
Nope. I have a phone and a laptop (that I never use).
Previously I would have suggested that you download the Kindle app for your own phone/tablet/laptop and try it out that way.
But recently due to play store politics you can’t buy books in the app itself.
But if you can buy the books on the website (which i think you can) and read them in the app and are happy with that then you could still try that before you splash out on a dedicated ereader.