The real shocker in the Tab Ultra is that is has... gasp!!! ... a microSD card slot!!!!!
https://shop.boox.com/products/tab
That slot, and the 128 GB of internal storage, could make this an interesting alternative to the Note series.
Edit: For reading purposes.... Unless you're reading pdfs often, I'd go with the Nova Air 2 as a better option. 7.8 inch display, 300 dpi. For me, it's become the ideal size for a reader. Six inch displays are doable but now seem a bit small; 20 inch displays ore okay but seem a bit too big!