Measured 6’10’’ in shoes, with a 6’10.5’’ wingspan and 238 lbs at the 2015 Nike Basketball Academy
https://www.nbadraft.net/players/domantas-sabonis/
The NBA now lists him at 7'1
https://www.nba.com/player/1627734/domantas-sabonis
So either he grew 3-4 inches after the age of 19 or this is the most extreme case of inflated height in the NBA.
7'1 is Gobert, Embiid, Roy Hibbert, Brook Lopez type of height btw