Yup, sure does.
I can’t be 100% sure, but the last power outage I had at home I did not have to turn them back on. I’m confident in saying yes.
I think using the SmartThings outlet would be just fine, as well as the Iris version of it. They are zigbee devices. I use both without any issues. I also use Aeon’s smart energy switch on my washer, dryer, refrigerators, and a few other places.
There are several smartapps that can be used to monitor power usage and send you a notification. I personally like the Aeon’s because I’ve tweaked the device handler to show watts in more detail (more decimal places instead of just a whole number). The other outlets will show 0 watts when nothing is running, even though there’s a small power draw for the LED and internal circuitry.
When a smartapp is monitoring for 0 (assuming power loss), you could get a false notification when in actuality what ever you have plugged in to it is just not turned on.
The other devices can also have a custom device handler easily written to do the same btw.
Here’s an example of one of my Aeon’s in action: