Rene Ritchie at iMore:
The iPhone has been my frequent travel companion for a while now. I do almost everything with it. So, I was curious to see how different, if at all, traveling with the Apple Watch would be. I've long believed the Apple Watch's killer feature would be convenience. But reality doesn't always live up to our beliefs, especially when it comes to travel. So, with that in mind, on my flight home yesterday I decided to put the Apple Watch to the test.
Apple Watch seems to make the perfect travel companion judging by Rene's experience. Better adoption of Passbook and electronic ticketing, international availability of Apple Pay, and more apps being optimized for Apple Watch will only improve the experience, but it seems pretty capable from day one.