At yesterday's developers conference keynote, Apple unveiled new iPads. One was an iPad Pro with 10.5 inch screen. The screen size is between the 9.7 inch and 12.9 inch. The size of the iPad itself is only a little larger than the 9.7 inch iPad. It's 1 centimeter higher and 0.5 centimeter wider despite the screen being 20 percent larger. The weight of the 9.7 inch model and the 10.5 inch model is the same, 469 gram.
Since it is a Pro model it supports Apple Pencil and is faster and has a better display than any previous model.
Read more about iPad Pro 10.5 on Apple's website.