Far more than its babys first smart lock appearance may suggest, the Yale Approach Lock with Wi-Fi lets you easily retrofit your existing deadbolt to be web-connected. It installs fast, works great, and is supported by a rock-solid companion app. If only Yale had gone with a rechargeable battery, instead of four standard AA ones, things could have been even better.
Source : I Rent and Easily Installed This Yale Smart Lock on My Apartment Door
