7 inches large tablets against in the direction of “phablets” and with my 7" Oldie Samsung Galaxy Tab 2 7.0 P3100 “espresso3g” I can currently still make calls with 3G.
The link should tell you that /e/ phones with a display larger than 6.2 inch are not on top of the to-do list.
A /e/ phone with a 6.3 inch display is currently planned: Samsung Galaxy Note 8 “greatlte”