I made an appointment to go look at the AW on the very first day, rather than pre-ordering, because I was concerned about sizes - I generally wear smaller/smallish watches (not a fan of the "dinner plate-sized' watch trend, my previous favorite watch is a
36mm Marathon), so I was concerned about the 42mm size, and assumed I'd prefer the 38mm. Tried both, and was surprised that the 42mm
didn't feel too big
to me. I went with the 42mm, figuring "more pixels and bigger battery can't be a
bad thing."
It's really a personal choice - it's not jewelry, but it
is an item you're likely to be wearing for most waking hours, and likely having in your field of view a lot of that time. Get the one that pleases you / makes you the most comfortable. Neither is decidedly inferior to the other (Apple wouldn't do that), nor designed specifically for munchkin or giant fingers. Signed, a full-sized adult male who has often worn smaller watches.
(My favorite Marathon watch has some entirely undeserved 1-star reviews on Amazon from men saying, "this watch is too small for a
man, it's suitable
only for a
woman or
small boy" - I think such men have taken to wearing enormous watches to compensate for something. Also, if you rate an item that both works great and precisely matches the description as 1-star, because
you couldn't be bothered to read said description and glance at a ruler, you're misusing the rating system and should be hit with a stick.)