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. Cons: Expensive. Requires three year contract with hefty termination penalty. Some Pulse peripherals require
third party mobile apps. Bottom Line: ADT Pulse offers just about everything you could want in a full service home security system, including many component options, support for popular third party smart home devices, and a solid app experience. Read ReviewSimpliSafe Home Security System ReviewMSRP: $229.