InkPad 4

The Sage appears to be completely discontinued; it's been out of stock for months everywhere. Have a look at the PocketBook InkPad 4. It's an 8 inch black and white 300 ppi reader with physical page buttons like the Sage. Effortless sideloading just like Kobo, it even has an email-to-device function

Consider also PocketBook Era or InkPad 4. They allow uploading books using USB and File Explorer, or with internet options. They are a bit slow though.

Ereaders don't get released every year like phones, so new is very relative. 6'' Kobo Clara BW (or 6'' PocketBook Verse Pro if you are willing to accept a lower contrast), 7'' PocketBook Era, 8'' PocketBook InkPad 4 or 8'' Kobo Sage are I would say your options if you want a non-Android black & whit

PocketBooks have good PDF support, but you should avoid PDF as much as possible, they are the worst book format available (if you even can count it as one). Just download them again, don't hassle with book conversations. Reflow in PDF is possible on PocketBooks (look this up), but if a PDF consists

PocketBook Verse (Pro), Tolino Shine (baugleich zum folgenden Gerät, mit leicht modifizierter Kobo-Software), Kobo Clara BW (alle 6"). Bei PocketBook wäre auch der 7" PocketBook Era zu empfehlen. Das PocketBook InkPad ist schon 8" - ist zwar im Grunde "nur" so groß wie ein Taschenbuch, aber ich kann

It's unluckily just a side-grade I would say, since it's for the most part still the same device (since it's the same screen), but depending on how important warm light is to you, I guess it's still worth it... I guess? And I even would not underestimate buttons, I seems that I use them even more ov

If you want the best contrast, the Kobo Clara BW is better (visible in direct comparison). Verse Pro is stuck at Carta 1000 and the Clara has Carta 1300 (PocketBook Era btw. has Carta 1200 & an inbuilt speaker, also buttons on the side and isn't that much more expensive than the Verse Pro). PocketBo

Four months later I now have a PocketBook Verse Pro (blue frame), a PocketBook Era Sunset Copper (64GB, copper frame) and an InkPad 4 (silver frame). And I sold the Kobo Clara BW (to get the Era). PocketBooks offer more features, don't need Calibre + plugins to fix metadata related stuff, no need to

Regarding Kobo: the problem is that the only fitting device for your needs would be the Clara BW (which doesn't have buttons, but is still a decent device nonetheless). The Libra 2 is discontinued, you only get the 7" Libra Colour at that size, and the Sage - while having buttons and is b/w - is way

Your only other choice outside of Android is a Kobo Sage, which has a rather small battery and may not be produced anymore by Kobo (could still be available new). It's likely faster than the InkPad 4 - on the other hand does PocketBook have a decent PDF support, Kobo somewhat lacks this. I would say