Lockitron

You can pay for your coffee, turn off your lights, control your TV, and start your car with your smartphone — so why can't you unlock your doors? That's exactly what Lockitron ($150) does. This sleek box slips over the inside of most deadbolt locks, and sports built-in Wi-Fi to let you check on the status of and lock/unlock your door from afar. You can also add family and friends as guests to share access, but we're most excited about the Bluetooth 4 integration, which means it can sense your iPhone 4S or iPhone 5 and unlock the door automatically without you ever having to do a thing. [Thanks, John]

Site Meter