DeX on Tab A7 Lite

[HavenC]

Can I use my Samsung tablet like a monitor to get Samsung Dex from my Samsung S9 onto it

[HavenC]

I'm pretty annoyed that I've spend over £300 just to get the E Sim to work in my Samsung Watch 5 Pro. First I bought the A7 Lite, and that didn't work because its a tablet, then I bought the S9. I want to get the features of my S9 on an 8 inch screen. How can I do that