His hands are the same size as Roethlisberger's and I always thought Ben had huge hands since he could pump fake and control the ball in snow and rain.
I think the 9.7" hand size is actually the average size of NFL QB's drafted in the first round between 2008 and 2020. (I can use Google too.)
Allar would be in the top 30% of all NFL QB's. Of the 16 QB's in the combine in 2026, two QB's had larger hands than Allar. Two.
Of the 15 QB's in the 2025 combine, zero had larger hands, two (Graham Mertz and Tyler Shough) had equal size.
So in the past two combines, of the 31 QB's who participated, 2 had larger hands than Allar. 2 out of 31. That puts Allar in the top 10% of that group.
Looking over starting NFL QB's, I believe nine have larger hands (Trevor Lawrence, Michael Penix, Dak Prescott, Josh Allen, Jordan Love, Matthew Stafford Aaron Rodgers, Justin Herbert, CJ Stroud). Allar would be in the top-10 basically.
So like I was saying ...