Our best selection for the best home security system, SimpliSafe is easy to install and easy to use; we also like this option for its affordability and overall style. This Shield kit, exclusive to Best Buy, includes a base station, keyboard, two motion sensors, a keychain and six input sensors. Simplisafe is compatible with Amazon Alexa, Google Assistant, and August Smart Locks (but not Apple HomeKit), although its “smart” integration is limited. Usually sold for over $ 250 for this 11-piece kit, this offer offers another big drop up to $ 160 if the components work for your home. Like all security systems, expect additional monthly costs for active monitoring.