Turn everything on and off with your voice.
The Samsung SmartThings smart home hub is down to $56.99 on Amazon. This is its lowest price of the year on Amazon and a huge chunk off its regular price between $90 and $100. It has been replaced by the 3rd generation SmartThings hub, but that new hub is $66 right now.
Hubs like this act as the "brain" of any smart home. As you start adding more smart features, like a motion sensor or smart plugs, you want to be able to control all of them at once. The hub lets you connect everything to it and then control them from one single place. The $142 home monitoring kit, for example, can use that hub to connect all of your appliances, monitor your home and notify you when anything unexpected happens. The SmartThings Hub works with Wi-Fi networks and wireless protocols like ZigBee and Z-Wave.
The Samsung SmartThings Hub is one of the best reviewed smart hubs out there. Tom's Guide called it the Best Smart Home Hub in 2017 and 2018. PC Mag named it their Editor's Choice, gave it 4.5 stars out of 5, and called it "one of the most versatile home automation hubs around."