Don't like the look of those bulky smart locks? You don't see this one at all. This kit fits into your existing door and may be used with your existing deadbolt. The inner mechanism replaces your existing old school mechanism to convert your lock into a Bluetooth-enabled lock. The lock code may be shared by invitation and sent to anyone at your door needing access.
Use your own lock; Bluetooth enabled; control your lock securely via the Level Home app; see recent activity including who has come and gone; give access to others from wherever; unlock your door automatically when you enter Bluetooth range; lock your door automatically after a selected delay.  It is constructed of stainless steel construction; the battery is easily changed without removing the lock; battery life approximately one year.
 
Also works with Alexa, Ring, and Apple HomeKit