Like other recent Nxtpaper phones, the key selling point is a dedicated button that activates Max Ink Mode, which switches the matte display to a monochromatic mode that looks a lot like E Ink and is easier on the eyes for reading. The appeal to parents will be an extra way to manage screentime: not just a binary on / off, but an in-between option that's better for kids' eyes and not particularly well-suited to playing Fortnite. It extends the device's battery life, too.