Lenovo - M14 Portable Monitor

I have a different Acer portable monitor and it’s great. When I used to travel for work it was a life savior. No negative comments to report, survived 3 years of being on the road every day. Train rides, airports, hotels, random client offices… survived it all. Not sure if that matters to you, but I actually just picked up a Lenovo M14 portable monitor to be a second screen for my desktop for misc applications like discord etc when I game with friends on the weekends. That one is amazing as well.

My Acer is powered by the USB. The Lenovo has a separate power plug

This has been so long ago I can barely remember, but I think I tried the lenovo M14 and was really unimpressed with it, so I returned it. IIRC correctly, the main issues were that it was really wobbly and the pen experience was not great, but don't remember exactly what it was about the pen that I didn't like. I didn't try any other touchscreen monitors after this.

Had a Lenovo M14 for years now and it’s a perfect companion.

If you want to go all Lenovo, get a ThinkVision M14. The regular model is pretty cheap now. The 14t has touchscreen and pen support, the 14d has a 16:10 ratio and higher pixel density. I've used the M14 and M14t with a T14s and other newer laptops with no issues.