With the Keypad, friends, family members, or service providers can use a code to enter your home.

The Danalock is a Bluetooth and Z-Wave enabled smart lock that's attractive and easy to install, but suffers from inconsistent performance and a poorly designed app.

The August Smart Lock is a sharp-looking door lock that uses Bluetooth technology to lock and unlock your door using your smartphone. It's a snap to install and easy to manage.

The Schlage Century Touchscreen Deadbolt Lock is a stylish electronic lock offering Z-Wave wireless capabilities and both keyed and keyless entry. It's a bit noisy, and like most smart locks, it's expensive.

The Kwikset SmartCode Contemporary Deadbolt is a six-button electronic touchpad lock offering both keyless and keyed entry and Z-Wave wireless capabilities. It installs in minutes and works beautifully, but programming this lock can be daunting.

The LockState LS-5001 RemoteLock Wi-Fi Door Lock lets you lock and unlock your door, manage access, and monitor comings and goings from just about anywhere using your existing Wi-Fi network. It's easy to install and performs wonderfully, but its mobile apps aren't quite ready for prime-time and it requires a meager annual subscription fee.

The Yale Real Living Z-Wave Touchscreen Deadbolt Lock is a sleek-looking motorized door lock with lots of easy-to-use features, but it's expensive and requires a third-party app and a network controller to manage it remotely.

With the Kevo Bluetooth lock and an iOS device, you can unlock your door with a swipe of your finger. It's not cheap and it comes with some minor drawbacks, but if you're ready to lose your traditional keys, it's worth checking out.