The Redalf P5 is the one I’d pick if you want a portable display that behaves like a true laptop extension. It stays close, keeps your workspace aligned, and the portrait mode plus 180° rotation are genuinely useful for documents and meetings. Just keep in mind it’s heavier and can drain laptop battery more noticeably over longer sessions.
Pros
+Extender-style design feels like a natural second laptop screen
+Detachable and can clip to either side or be used standalone
+Portrait mode and 180° rotation are great for docs and sharing
+Crisp text and neutral whites for long office sessions
+Plug-and-play with fast wake and no drivers
Cons
-Heavier at around 2.75 lb and adds noticeable load to a laptop
-Stand is important to avoid stressing thinner laptop hinges
-Best indoors; visibility is less ideal in brighter rooms
-Battery drain becomes noticeable after a few hours