Why would you pay $150 for a 4.26" ESP32- based eReader when you could get a 4.26" ESP32-based eReader for $70 or less? The XTEink X4 is already available.
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Front light
I recently picked up an Xteink X4 for $55. Flashed the Crosspoint firmware on it. Crosspoint just works and has no bloat. I love being able to set the device and send books via the self-hosted web interface. Sending books via wifi from Calibre works too.
Buttons on the reader are nice. I actually prefer not having a touchscreen for something so small. I do wish it had a front light though. This turned out to be the less-expensive-non-Android-just-an-ereader alternative to Boox that I was searching for. Loving it so far.
Can it access OPDS feeds?
And you have open firmware for it: https://hackaday.com/2026/04/05/pocket-sized-e-ink-gets-a-firmware-upgrade/
I'd be inclined to get the cheaper one and port the firmware if the new one is better, or someone else will almost certainly make a new one that takes the best features of both.
But can you get books to read on it? I suspect that these gadgets will get locked out of the market by the thugs.
These gadgets were locked into the market, locked out of everything else. Usually, how these things go, the community version supplies interfaces for downloading content from third parties.
Lock the gadgets out all they want. That’ll only make more interest around having all the popular new books available on platforms that thugs can’t control.
Why did I read that as 150 buttholes?

Why buttonless? I like buttons.
Heck, a scroll wheel would be a killer feature so I don't smudge the screen with my disgusting oils
Buttons and scroll wheels cost more than touchscreens at this point… 90s me wanted touchscreens on everything, and me since maybe 2015? has been firmly “bring back buttons”
…whenever they started replacing useful things that SHOILD be buttons always (car) with touch things. Absolutely not bueno.
My Kobo only has a power button and it’s perfect for my needs.
My kobo has a power button, and two page turn buttons and its perfect for my needs.
Seriously, I have 4 (5 if you count the ancient kindle DX) ereaders, and the kobo is the only one I use. Will never again buy one without buttons
It’s not that hard to tap the screen to turn a page lmao
But I want buttons. Without buttons I always do the wrong gesture.
I read on a kindle on my bed before going to sleep, and everytime I stretch or turn over the font size changes or it advances a couple of pages. It's slowly driving me insane.
Why is "buttonless" being said like a good thing?
It’s a fact? It has no buttons. God or bad
Yes, but my point was that it was stated in a way like a feature being touted as opposed just a statement of fact, Maybe my impression was wrong, but "buttonless" immediately put me off from the device.
Because buttons take space, reducing space available for the screen that has, well, the book.
The good sensor is the answer, IMO. I only wonder how should it turn on and off, then.
Having a space with no display where I can actually hold the reader makes it so much better, for me
Hall sensor/ reed switch and it turns off when it's idle or the case closes?
Maybe
I'm looking for an open source ReMarkable alternative. A4 sized preferably. Any options out there?
That screen is absolutely tiny.
I wouldn't mind if my phone was 4,2" but I want a bigger screen for reading books. Like the size of A5 or even A4 paper.
I actually just got one of these things (https://www.xteink.com/products/xteink-x4) that has a 4" screen (WITH BUTTONS) for $55 on Amazon and I kinda love it. I think my perfect phone would be something this size with GrapheneOS support and a headphone jack.
Read so much about that thing. Make it 100$, give it a backlight and WiFi and I'll buy three...
If anyone wants to see the old project: https://hackaday.io/project/192688-the-open-book
Its been around for a bit. The newest iteration looks like its trying to be more like kindle.
GH page: https://github.com/joeycastillo/The-Open-Book
I forget where but the developer goes over the cost of the physical hardware a couple of years ago somewhere. Its kinda expensive to make your own open source ebook reader from mostly scratch.
I like this version: https://www.oddlyspecificobjects.com/projects/openbook/
I flashed my Kobo and have a pretty similar experience now. Except with a decent size screen.
I've had a Kobo Clara BW for about 2 years. I use it almost every day and I love it. I think it was about $140 when I bought it. They go for $160 now, but I think the bigger screen makes it a better buy than this e-reader. I love crowd-funded projects, but Kobo is a better option, imho.