Kevo Smart Lock
Kwikset's Kevo Smart Lock -- on display at CES -- turns users' smartphones into portable keys for their homes.
This Internet of Things-connected lock, available for $185, connects to a companion mobile app on iOS and Android devices. From the app, users can set up and delete eKeys, which are encrypted electronics keys residing on the smartphones that unlock Kevo. Users can also send their eKeys to other users temporarily that they would like to grant access to.
Kwikset has also paid close attention to security amidst IoT security concerns -- Kevo tracks user activity in its system, so users know when eKeys have been locked, unlocked, sent out or accepted.