This? pine64.org/devices/pinetab/

It’s just 10" and looks like an old design. Micro USB, oops. The Inkplate is 10" ESP32 epaper so it uses very little power. Alternatively there are tablet-style x86 laptops and I almost bought one last year. Now the price is way up due to DRAM shortages and so on, oops. I have some scrounged HDMI monitors so I want to try using one in portrait mode with my raspberry pi 400. If that works I could see getting one of the Waveshare dual screen monitors and maybe a Pi 500+.