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Why not E-Ink display?

Orange backlight is all well and cool, cyberpunk and stuff, but except for emotional preferences are there any other benefits?
Maybe it’s worth to consider e-ink displays?

TL;DR answer is that E-ink has very low refresh rate and can’t be used quick for menu navigation. You can read full answer on @molecul link.

Wow, refresh rate looks quite fast. Displays that I’ve tested with pwnagotchi https://pwnagotchi.ai/installation/#display was made especially for electronic price tables for goods. Probably it much lower quality than ebooks screens. Also what about backlight on this tiny e-ink screens? We need to look closer. Can you please search for ready to buy e-ink modules with backlight that fit in our size?

As another option, you can consider this type of displays:
Transflective liquid-crystal display

Of the benefits - good visibility in the sun.