I am looking for a tablet, which I will use only for email and, possibly, browsing (reading news items only). No games, videos, music, etc.
Bluettoth is not required; I am undecided about a SIM card.
I would prefer Linux, but could live with Android out of the box, especially if I could install Linux over it.
The device should be large enough to read, but should fit inside a jacket pocket, so maximum size about that of a Kindle Paperwhite.
Battery life is of great importance to me, to the extent that I would prefer a back & white, or greyscale screen, if there were such a tablet.
The cheaper, the better, but features mentioned above take precedence.
End of question, only read further if you want an explanation.
Background: my current 'phone suffered an accident, and I am replacing it. It is a Ulefone Power with a 13,000 mAH battery (yup, you read that correctly). I generally charge it every 5 or 6 days (side note, I can heartily recommend all UleFone models; this is my 5th or 6th over the years. Affordable, full featured, cheap, but realisable).
As per my question How can I escape Google?, I don't want my soul tracked by Gogole, Facetweet, etc (I don't even use them - directly - but they are tracking me). So, I have decided to switch to a dumb 'phone.
I recall only ten years ago getting months between charges on a small, greyscale, Nokia, so will look for something similar.
I only really use a 'phone when job-hunting. Every 12 months or so, as I am freelance. A handful of people use WhatsApp, but I can retrain them to use SMS.
Beyond that, I have become accustomed to having email on the go, rather than just reading & replying when I get home of an evening. I have also taken to reading news headlines in the browser. A device that will let me do those with a modicum of privacy (let me worry about that) and a long battery life would be welcome.