DescriptionShare Reddit Vote 0 SharesOnyx Boox has a new colour e-paper e-notebook that is now available to order, the Onyx Boox Note Air 4C. The resolution is a lovely 2480 x 1860 with 300 PPI when viewing B/W content but gets halved to 1240 x 930 or 150 PPI for colour content. Further, with the onboard Boox Super Refresh or BSR tech, you have ultra-clear displays and fast page refresh times. The accompanying stylus, which Onyx refers to as the Pen Plus, offers a natural paper-like writing feel. The Pen Plus is ideal for expressing creativity in notes, annotations, or drawings.