Did you also try the one that is probably also used on pixl.js? https://www.espruino.com/Pixl.js
It is ~$5USD thing on aliexpress. Also with low power draw.but forgot how low.
Just beware the 5V version has regulator that draws much more. Also some of them have SPI font chip that can be removed which draws a bit more power too.
EDIT: here https://www.espruino.com/Pixl.js#power-usage 200uA so not that good
Have not tried that one.
The pixel.js display is much lower resolution (128x64) and has a backlight so I think this would be a much better display for a Pixl.js V2!
BTW. I am using HW SPI at 10Mhz to update the display which works well. I am thinking of trying to connect the display to one of my old NRF52832 watches to get the extra flash memory.
PS.I think the time display above may be adapted from some of your code - look familiar?
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