I used the same setup on my trip to Sri Lanka using a Samsung Note 8 ( a relatively old 8 inch table not the phone note 8). I am pretty sure my SSD (portable type) worked on the tablet.

It worked well, although a bit slow compared to doing it through a computer. I did do some limited editing on the tablet, however it was not very satisfactory.
My camera has SD cards, I have not tried it with a CF card, it seems strange that the tablet can not see the CF card.

I have since replaced the dying laptop and dead tablet with a surface pro and now use that. Much quicker and editing is similar to the laptop.