The Azentek SmartMirror puts an end to dashboard clutter by integrating a 4-inch touchscreen LCD directly into your rearview mirror. You don’t need to buy a separate navigator or drain your cell’s battery to get directions. This clever device provides spoken turn-by-turn directions, as well as Navigon’s helpful Lane Assistant and Reality View features, to guide you in unfamiliar territory. And with Bluetooth built-in, you don’t have to splurge for an in-car speakerphone; you can make calls directly through the SmartMirror, and it even displays incoming-caller ID.