Do a search for the 1.3" 240x240 color TFT display that uses the ST7789 driver. Works on 3.3v, no need for a negative power source, and it has a driver that supports full graphics and multiple fonts. Basically you need four control lines plus the Vcc and ground.

There's a decent write-up here, but plenty of other sources talk about this display. I have a small handful of them and the output is pretty nice. I'm not sure what the refresh rate is, but I've seen some pages in the past showing people playing small video files on it. https://thesolaruniverse.wordpress.com/...

Make it a webapp interface, chat gpt may suck with a lot of things but it's great at web design.

If you design a PCB I bet you could get a backpack in there without sacrificing that much space, but I'm a bit of a noob when it comes to LCD displays and idk your project soo..

There is the option also of finding some random small screen that runs off of serial, only if you aren't using serial for debugging which is unlikely.

What kind of project is this?

The real future is low power OLED.

EInk displays are very cool in their specific use cases, but not where the screen need refreshed frequently.

Pros:

• very crisp display. Work great in full sun.
• text usually looks very good on these displays
• 0 power usage when not refreshing the screen.
• display remains as-is even if power is removed. Potentially for hours/days

Cons:

• expensive vs LCD
• refreshing the whole screen can take several seconds
• limited to B&W or sometimes one additional color
• not visible in the dark or in low light.

Some good use cases:

• Price/ID tags
• Thermometer or other slowly changing sensors
• Clocks (without seconds)