This is ShotokuTech's take on a case for:
LILYGO® TTGO 1.54 Inch Wrist E-paper ESP32
https://www.aliexpress.com/item/1005003095240476.html

I printed it with Clear PLA from HobbyKing, 200c hotend, 60c bed, 33% infill. For the case back I did use a little tree support to help define the screw holes a bit better. you need four 3mm-.05x6mm screws to secure the case.

I finished this with a 22mm white strap from GadgetWraps on Amazon
https://www.amazon.com/gp/product/B01FWI0B2G
Make sure to verify both color and width when ordering as one may change when you choose the other.

Creality

Ender 3

No

Yes

200

33

TInkerCad. The case front came together quick. The back took a few tries to get it right.