If you're one of the folks who think that a smartwatch should pack every bit of the technological punch that a smartphone does, then you might want to check out the Rufus Cuff. With a three-inch touchscreen, you can not only read your alerts and messages, but respond to them from your wrist. You can also answer calls via speakerphone or video chat, making the Rufus Cuff nearly a replacement for your smartphone altogether.
The only reason you can't use the Rufus Cuff as a wrist-mounted smartphone is that it lacks an antenna of its own. It relies on your smartphone to actually handle receiving the calls you answer from your wrist. On the other hand, the Rufus Cuff does come with GPS, a lost phone locator, and calorie and step trackers. It's also compatible with both Android and iOS.