The Boox Note Air 4 C is one of the best e-note devices to have ... The Note Air 4C impresses with its 10.3-inch Kaleido 3 color E Ink display capable of showing color content in 150 PPI ...

Over the years, Onyx has launched features like touchscreens, front lights, and, yes, color screens alongside or even well ...

That's why the Onyx Boox Note Air4 C, a $500 digital notebook and annotation tool, offered an alluring alternative: Mark up e-books and PDFs as much as you want -- and in color. I was intrigued.

At the core of Note Air4 C is the advanced Kaleido 3 color ePaper screen ... 6GB of RAM, and BOOX Super Refresh (BSR) technology, ensuring quick responses and seamless multitasking.