Dan Seifert, in reviewing Will.i.am's Puls smartwatch for The Verge:
The screen is small and grainy and the operating system is neither responsive or intuitive. There are a few preinstalled apps for Twitter, Instagram, contacts, and more, and the Puls has a full dialer for making phone calls. It also has a full QWERTY keyboard, which requires two presses to type a single letter (one to zoom in, a second to actually input the letter). It's unsurprisingly terribly frustrating to use. The Puls' feels like a Kickstarter concept product that never should have made it to production.