[Quoth]

The 227 is certainly ok vs 300 for ebooks or a normal size font. It's noticeably poorer for scan PDFs of a magazine, or Letter/A4 pages with small text.

Also 200 dpi with 16 million shades (200 to 1000 grey levels) LCD is far better than 14 shade + black + white eink at 300 dpi for scanned PDFs. Only direct rendered epub is better at 300 dpi than 200 dpi LCD with a matt screen.

The Boox Note Air3 C can't actually do the same quality as a 300 dpi mono screen unless you dissaemble the light pipe layer and disolve off the coloured printed dots. It's impossible.

Also videos are STUPID to compare screens. You need decent stills in controlled light, png or tif files (not jpeg) and a decent screen with no reflections or glare.