This affordable little device does double duty by controlling your smart lights hands-free and offering peace of mind while you're out.

Startup Kangaroo wants to keep home security simple with a motion-sensor-centric system. Possibly too simple.

The best home security systems are 1. SimpliSafe, 2. Ring, 3. Abode, 4. Arlo, 5. ADT and 6. Vivint. They include sensors, detectors, cameras and more.

This starter kit of two contact sensors and one motion sensor extends the capabilities of Wyze's affordable security cameras.

The Cove 8-piece security system comes with a modern touchscreen hub, entry sensors, motion sensors, flood sensors and activation key fobs. There are also available medical sensors.

Looking for a security system with strong HomeKit integration? Read our comprehensive review of the Abode Security System.