Meet the Schlage Sense Smart Deadbolt: a smart device with HomeKit integration that lets you program it from your smartphone. It has a built-in alarm that senses potential door attacks. Its touchscreen lets you enter your access code easily. You can talk to your door using Siri on your phone. The lock holds up to 30 access codes at a time. It is available in 3 designs. Sets you back $229 at this time.