Stärkere Trennung preiswerteres iPad versus technisch hochwertigeres iPad Pro ...

Außerdem reflektieren zahlreiche Reviewer positiv bis sehr positiv auf "10,5", zb.

https://9to5mac.com/2017/06/16/2017-ipad-pro-review-pricey-perfect-video/

The 10.5-inch size is a definite improvement over the 9.7-inch models, which always felt a bit too small. That said, if you’re a 12.9-inch iPad Pro user, the 10.5-inch model will still feel small — you get much more real estate to run two apps side by side on the larger iPad Pro than you do on the smaller version. If your needs require the size of the 12.9-inch iPad Pro, I’d recommend sticking with it. Yet, if you find the 12.9-inch model to be unwieldy at times, the 10.5-inch form factor might be right up your alley. I definitely recommend walking into an Apple Store and trying them out for yourself to see what works for you.