Sony's SmartWatch â€” essentially a Bluetooth remote for your smartphone â€” shows the potential value of an always-connected device you can wear on your wrist. Unfortunately, at this point, potential is about all there is to the SmartWatch. Largely useful for short notifications of incoming calls, text messages, emails, tweets, and the like, it's not particularly handy for replying to these messages; you'll still need your phone for that. Additionally, its display is difficult to read in bright sunlight, and it only works with Android phones. Updated apps may add new functionality to the SmartWatch, but for now, it provides a very small window into the vast universe of your smartphone.