I'm passing on the Lenovo M10 gen3 I got early last year at ALDI for $99 to the offspring, and am looking to replace it with an OLED one, since I mostly only use it for watching stuff in the dark at night, and the LCD backlight bleed is my only grievance with it (not the low powered Unisoc T610 chipset). To my surprise, there currently are not a whole lot of OLED tablet options out there, just the Samsung S's, the Lenovo's P11/P12 pro's and this year's two Honor's, all priced $700+. So I wonder… am I better off just buying a separate 13" OLED screen, i.e. portable monitor, for <$200 at AliEx, (or as little as $128) that is not programmed to be obsolete by not being upgradable to the latest OS?
UPDATE: Oh, wait, that may not work with my phone (Xiaomi POCO M5s)
Depends how you use it.
If you're holding it, I'd stick with a tablet.
If not, there are probably minimal issues with a portable monitor. You'll also need a tv box of some sort and power adapters which could be annoying.