I have been on the look out for some largish cheapish portable monitors for WFH excel, and managed to come across this monitor. From what I noticed was that a lot of those monitors with similar specifications are around the $200+ aud mark.
Edit: Select the EU Plug options (it's a usb charger only, should be easy to obrtain these quite cheaply) which gives you the $111 USD price.
Specification below:
-Panel Type: 16.0” IPS Screen
-Resolution: 2560*1600 2K
-Display Color: 1.06B (8bit+FRC)
-Visual Angle: 178° Full View Angle
-Contrast Ratio: 1200:1
-Brightness: 500 cd/㎡ (advantage over the other 300nits varients portable monitors so great for outdoors)
-Refresh Rate: 120Hz
-NTSC: 72%
-s-RGB: 100%
-Response time : 25ms
-Display area:344.678(H)×215.424(V)
-Bulit-in Speakers: Dual 8Ω 1W Speakers
YouTube Review/s:
https://www.youtube.com/watch?v=E45dVcPv9B4
https://www.youtube.com/watch?v=EGAb--6u4EA
The cheapest price is with the EU plug, the AU plug is significantly more expensive. Still a great price for what seems to be a decent monitor.