Review on HAMTYSAN Portable Monitor - External 🖥️ Speakers, 15.6 inch, 1920X1080, 60Hz, HD, Portable by Kevin Bianchi

This monitor has two modes: 1. Single USB-C to USB-C solution where power and display don't need another cable, and 2. Dual cable solution where mini HDMI connects to full HDMI, however, the monitor also requires power using a different connection (USB-C to C or A to wall socket will do). This monitor mainly requires mobile phone power (5V/2.4A), which can be powered by a USB-C solution. Images are sharp with a decent refresh rate. As a second monitor for an ultraportable, the monitor is compact and easy to use for projection. For RP4 this is a suitable main monitor if you can find an additional power supply to power the monitor.