Making your home smarter might involve swapping in a connected thermostat that can save energy or adding a few cameras to keep an eye on things. But what about getting into the house? Smart locks are weirdly expensive, but the August smart lock is on sale today at a few retailers. It's $90 cheaper than usual, and you can get it in time for Christmas.

August installs on the inside of the door, but it uses the existing exterior hardware. That means you still have a regular key in the event August isn't working. It connects over Bluetooth, but you'll need the WiFi hub add-on to connect it to your network. The lock is controlled via the August app, Alexa, Siri, or Google Assistant. You just need to pop in some AA batteries whenever they get low.

The August Lock usually retails for $229.99, and it doesn't often come down much from that. You can get it for $139.99 today at Amazon and Best Buy (possibly elsewhere, too). Amazon offers one-day Prime shipping on this device in many areas as well.