I finally went to an Apple Store today to see the watch in-person. I was directed over to the demo watches over by the wall. Having never seen one in person... I didn't have any basis for size comparison. The watch I was playing with didn't seem big or small. Then I found out that all the demo watches were 42mm... and then I asked about the watches in the glass case. The 38mm seemed so tiny! An employee opened the secret drawer and let me try on both sizes. I will be ordering a 42mm for sure later this summer. When you only see something in photos online you don't have anything to compare it to. (I remember thinking the iPads seemed smaller in-person than I thought after seeing the launch video in 2010) I had it in my mind that the 42mm might be big and bulky. NOPE!