It looks like an ordinary lock. As the smallest option on the market, that's by design. But the Friday Smart Lock isn't small on features. It replaces the inside thumb latch on most single deadbolt locks, letting you keep the same keys you already use. Only you might not need them afterward since its built-in wifi and Bluetooth let you unlock your door with either or phone or Siri, as well as give other people access remotely, and keep a log of who's come or gone during the day. Available in a range of finishes to match your decor.