You Can Get This Four-Piece Smart Plug (With Energy Monitoring) for $34
The TP-Link Kasa Smart Wifi Plug Slim (EP25P4) is now down to $33.99 from its usual $49.99, hitting what price-trackers report as the lowest point on Amazon. (It's only available in a four-pack, though.) It has a straightforward design with a three-prong outlet on the front and a three-prong plug on the back, with 2.4GHz wifi connectivity. It's compact enough to fit snugly in a two-plug outlet without crowding the second slot and has a 15A capacity that supports loads up to 1,800W, meaning you can use it for larger appliances like microwaves, dishwashers, or even CPAP machines. And, for those looking to save on their energy bills or reduce their carbon footprint, this smart plug, with its energy-monitoring capabilities, tracks the energy usage of any device plugged into it.
TP-Link Kasa Smart Plug EP25P4 $33.99 at Amazon
$49.99 Save $16.00 Get Deal 
Get Deal $33.99 at Amazon $49.99 Save $16.00 It's pretty flexible when it comes to compatibility, working with Apple HomeKit, Samsung SmartThings, Amazon Alexa, Google Assistant, and IFTTT. So, if you're juggling a mix of smart home platforms, it should fit right in. You'll control the plug mainly through the Kasa app, but it also shows up in the Apple Home app, where you can switch it on or off and set it up with other HomeKit devices. That said, if you want to check energy insights or pair it with other Kasa devices, you'll need to hop back to the Kasa app, according to this PCMag review.
Setting up the Kasa Slim plug with the Kasa app is simple and smooth. Plus, it comes with a few handy preset modes: "Schedule" lets you set on/off times for specific days, "Timer" switches the plug on or off at a set time, "Away" randomly toggles it to make it look like someone is home, and "Energy" mode tracks power usage (but again, this feature is only visible within the Kasa app).
For another option Emporia Smart Plug with Energy Monitoring at $34.99 offers similar functionality in a four-pack but with limited smart home integrations.