- [Elecrow AUS50024E][1] (1920x1080 or [2560x1600 HDR][2], 10.1") they have a big selection, visit their website. They make no mention of this working with Dex but do say:

 > Works perfectly for PS3, PS4, WiiU, XBOX360, Raspberry Pi 3, 2, & 1 Model B or B+, industrial equipment, car audio and video, car headrest, medical equipment display.

- The [GeChic 1503E Monitor][3] (1920x1080, 15.6") specifically mentions that usability with smartphones is one of its abilities:

 > Enlarge Your Mobile Phone without Sacrificing Quality  
> On-Lap 1503E is always your smartphone’s perfect match. Make sure your smartphone supports HDMI output and use the manufacturer’s adapter to output your mobile phone to On-Lap 1503E.

- The [GeChic 1101P Monitor][4] (1920x1080, 11.6") has HDMI, and DisplayPort, it mentions it works with a Mac, no mention of smartphones, uses a battery pack (which is probably better than USB powered).

- The [GeChic 1102H Monitor][5] (1920x1080, 11.6") has built-in battery that they claim lasts 4 1/2 hours.

See also: "[10 Best Portable Monitors][6]".


  [1]: https://www.elecrow.com/10-1-inch-1920x1080-resolution-hdmi-vga-ips-ps3-ps4-gaming-screen-with-build-in-speakers-for-raspberry-pi-b-2b-3b-xbox-windows-7-8-10.html
  [2]: https://www.elecrow.com/10-1-inch-ips-2k-portable-display-supports-hdr-for-raspberry-pi-ps4-xbox-ns.html
  [3]: https://www.gechic.com/en-portable-monitor-onlap1503e-overview.html
  [4]: https://www.gechic.com/en-portable-monitor-onlap1101p-overview.html
  [5]: https://www.gechic.com/en-portable-monitor-onlap1102h-overview.html
  [6]: https://ca.bestreviews.guide/portable-monitors