i tested the uperfect ucolor o lite and this 13 inch 4k portable monitor...

techradar.com

The UPerfect UColor O Lite is a beautiful 4K display with great ports, VESA mounting, an OLED panel, and a lightweight frame, allowing for a wide range of uses. While the 13.3in display may too small for some users, for anyone looking for a screen that can travel - whether it's around the office or further afield. Elsewhere, the wide color coverage makes it an ideal match with Apple devices. Check Amazon

Pros

  • Fantastic colors
  • Great resolution
  • Portable
  • Lightweight
  • One cable

Cons

  • May be too small for some