On the SmartThings website, it says that the PD-5WS-DV-WH is compatible with SmartThings, Google Home, and Alexa, however I can only find the PD-6WCL-WH-R to purchase. Before plop down a bunch of cash, can someone help me understand the functional difference between the two? Is the PD-6WCL-WH-R also compatible with all three?