This switch has been discussed in previous zwave thermostat deals.
I received it today and confirm it is a zwave switch.
Works perfectly with Smartthings for me. You just need to keep the switch on during the inclusion process.
Compared with GE zwave switch, it only costs 1/4 price.
You might want to buy it from amazon third party seller. It is even cheaper and no tax.
https://www.amazon.com/gp/product…UTF8&