Earlier today we saw the colors of the Galaxy Note10, followed by pictures of its audio dongle. The third piece of rumor for the day is the screen diagonals, confirmed by British retailer Mobile Fun. The reseller received dummy units from Olixar that were manufactured specifically for case testing purposes. Measuring the non-usable gadgets, it appears the screen of the Galaxy Note10 will be 6.3", while the Galaxy Note10+ is arriving with a 6.8" diagonal. Since Olixar already has the full dimensions, it is now selling the first batch of cases for the latest Samsung flagship at Mobile...
Source: https://www.gsmarena.com/samsung_galaxy_note10_dummies_confirm_screen_sizes-news-38477.php