One of the most annoying things about the I’m Watch and Sony SmartWatch is that you had to press a button to check the time after the screen times out. If you can’t glance down to get the time, you lose the essence of a watch’s original purpose. Apple could solve this issue with a hybrid LCD/electronic paper display, a technology the company received a patent for in 2011. The display would be able to automatically switch between e-ink and full-color modes based on the content being viewed. Now that’s a smart watch.