The footprint of the Air was 11.8" x 7.56". The Neo is 11.71" x 8.12". If you liked the size of that one, you'll like this.
That seems like a product they could also potentially revive with Apple Silicon.
And indeed it's 13 inch but the dimensions are quite similar, there is a 0.8% difference in width (with the 11 inch being wider surprisingly, due to the bezels) and a 7% difference in height (11 inch being shorter). At its thickest point the 11 inch is. 33% thicker. In terms of volume the 13 inch isn't any bigger.
Just look up the specs.