The budget IPS portable monitor is now on sale for $139 USD to be one of the least expensive and lightest 15.6-inch models available. Display quality is decent with a fair list of cut corners considering the low price.https://www.notebookcheck.net/We-test-the-Lepow-C2-15-6-inch-portable-monitor-for-brightness-contrast-colors-response-times-and-more.644086.0.html
Hey Allen, it would have been awesome if you tested some mid-tier portable montors, like Inoocn ones who at least have useable brightness and sRGB coverage.
Names that popup whenever I read about cheap BUT good budget monitors:
Arzopa
INNOCN
Lepow
The cream of the crop appears to be Arzopa. Can only find them on Aliexpress, so more like catering to Chinese market with secondary consideration for international market. This may be a good thing because China always get the best products released there first...
OH, BTW Aliexpress is English international site for stuff shipping from China. It's your direct access to Chinese products that aren't supposed to be sold internationally yet...