Features to look for include geofencing, which uses your phone's location services to lock and unlock the door, voice activation
using Siri HomeKit, Google Assistant, or Amazon Alexa voice commands, support for IFTTT, and integration with other smart
home devices such as video doorbells, outdoor cameras, thermostats, smoke alarms, and connected lighting. Best Smart Home Security Systems Featured in This Roundup:ADT Pulse ReviewMSRP: $28. 99 at Pros: Fast and knowledgeable service reps. Many components available. Support for third party devices. Solid mobile and web apps.