Can I use a 42mm band on a 38mm Apple watch?
I’m buying a gift for a loved one and there’s a certain brand that I wanted but they only have 42mm. Can I use a 42mm band on a 38mm?
Unfortunately, no.
If this is an Apple made band, you can ask them to make it available for the 38mm. If they decide to take your suggestion, it may be a while before it's available though. http://apple.com/feedback/watch.html