Apple Watch and Convenience


Instead of double-tapping the side button and then holding your Watch near the reader, though, the barista just scans the bar code on your watch face. You can even leave a tip via the app on your phone when you get a chance; I've done it up to an hour later. It's super fast and really, really convenient.

Great example of technology making something simpler. Cool.

The Apple Watch is a hot cup of convenience | iMore