In 2019 Sony released the DPT-CP1 color Digital Paper A5 device, and now the company is set to release a new version, called (at least for now) the DPT-CP1 Version 2.
The main new feature is an upgraded display which has better color definition. Sony calls this technology the Kaleido 2.5 (based on E Ink's Carta 1250), and it enabled to lower the gap between the display and the color filters which enables the improved performance. The new display features a 1404x1872 resolution and faster refresh.