Bernard Desarnauts took a survey on Apple Pay and the reading is insightful.
79% of our users report a preference for using Apple Pay with their Watch versus their iPhone. All in all, our research suggests Apple Pay on the Watch is a delightful experience and it therefore seems fair to extrapolate from its early usage patterns that adoption will continue to be strong.
That’s been my experience, too. I shop more at retailers which support Apple Pay, and the Watch is preferred to the iPhone (tap the Watch button vs. fish around in a pocket for iPhone, then use Touch ID to purchase; Watch wins).