6.13” Carta1300 AiPaper Reader with 4G Connectivity, Ultra-Thin & Light E Ink eReader Device, AI Integrated, 300PPI, Adjustable Front Light, 128GB Storage

The best small-screen Ereader currently available
This VIWOODS AiPaper Reader is impressively lightweight, feels like half the weight of my smartphone. Easily slips into a pocket. The metal frame give it a premium feel with no hint of plastic, making the overall build quality excellent. As far as I know, VIWOODS is the only one using the latest Android 16 processor, which makes using third-party apps for reading seamless, both Kindle and Kobo work perfectly without any issues. The AI feature has been helpful, especially during study sessions, and I’m looking forward to future software updates that could add even more functionality.

Not worth a purchase
Beautifully crafted device , but that’s where the good stuff ends. The device is slow and glitchy . There is ghosting so a screen refresh is a constant thing. Reading on it is good but that’s about it. If that’s all you want to use it for then go for it . Getting Google Play Store on it is ridiculously hard as is trying to fine tune the screens to your liking. Certain apps like AP News , which is part of the App Store doesn’t even work, etc. Wanted to love it do to the device quality buy its going back. PS … Lack of a speaker was also a big omission . I will stick with my Boox Palma 2.

Nice reader but missing some key features .
I just bought a Palma 2 when this new ready came out so I purchased this one as well given the longer support for the OS.It’s thinner and has a nice metal frame and the fingerprint reader seems to be both more responsive and better.There is some weirdness with the OS as you can’t register the device as an Android one due to something along the lines of it not being as known Device type. There are also lots of places for settings that don’t make a lot of sense like color and contrast. I still have seen any changes when I adjust the contrast for example.The one thing is the screen- it’s a real deficit there isn’t a way to adjust color temp. The white screen isn’t bad but even just slightly warmer colors especially at night would make a big difference.If the Palma 2 was running a more recent OS I’d pick it over this. There is better polish on the software and overall feeling as a reader. But I’m still on the fence because I think the Viwoods is a nice device but I’m still not sure it’s a good alternative.The picture attached shows the same book page with Viwoods on the left and Palma 2 on the right. Same brightness but warmth added on the Palma 2 side.

This is my second Viwoods e-ink device, and once again, it doesn’t disappoint. I was first drawn to the brand by the 10.7″ AiPaper I picked up last Black Friday. That device won me over with its truly paper-like writing experience—it brought back the joy of reading in a way I hadn’t felt in years. Even the AI features, which I hadn’t expected much from, turned out to be incredibly helpful. They deepened my understanding of what I was reading without pulling me off-topic. I ended up recommending it to my colleagues.That said, I still couldn’t avoid reading on my phone, especially when I was out and about. The arrival of this phone-sized AiPaper reader fills that gap perfectly. It’s similar in size to an iPhone—slightly larger than my iPhone 14 Pro—but noticeably slimmer and lighter. It feels great in the hand and is extremely portable. The e-ink display significantly reduces eye strain during long reading sessions, which is exactly why I don’t mind carrying an extra device solely for reading.The app store offers 42 apps, which is more than enough for everyday reading needs and a handful of essential tools. Power consumption has been impressive so far; after several hours of reading, I didn’t notice any meaningful drop in battery life.It comes with a protective case, though the fit is a bit tight when sliding the device in. I also find myself wishing it supported a stylus—I often get the urge to jot something down, and I’d love to play with something like Sokudo on this device someday.Once again, the built-in AI is a real bonus. It enriches my reading comprehension and provides helpful depth without disrupting the flow.Overall, this is a fantastic device for reading on the go！

While I appreciate some aspects of this e-reader, there are a few annoying design flaws that really affect the user experience. The AI button on the side sticks out quite noticeably and keeps getting pressed by accident, which interrupts my reading flow more often than I’d like. I rarely use it, so it just feels unnecessary and intrusive.The e-ink screen also leaves something to be desired, especially compared to the Kindle Paperwhite. I miss the adjustable color temperature, which makes nighttime reading so much more comfortable on the Kindle.I also tried to use this device as my main phone and connect it to my car, but unfortunately, my car couldn’t detect it at all—so that was a letdown for anyone hoping to consolidate devices.Lastly, the bottom allocation makes it awkward to read while lying sideways in bed. After a while, my forearms actually felt sore from holding it in an uncomfortable position.Overall, while the idea is good, these design choices make it hard to recommend for serious readers or as a phone replacement. I hope future versions will address these issues.