Leviton Decora Smart Z-Wave 800 review: It's OK to say no to Wi-Fi

PCWorld 

Leviton, one of the biggest electrical component manufacturers in the world, makes high-quality products and offers a comprehensive collection of Z-Wave-compatible devices in addition to this Z-Wave 800 dimmer and switch. Smart lighting controls that operate over Wi-Fi are great, because they don't require a hub; they connect directly to your router. The downside is that they must compete with all the other clients on your home network: Your computers, gaming consoles, media streamers, smart speakers, home security cameras, smart plugs, and many, many more. I live in a very small home--less than 800 square feet--but there are still more than 80 devices connected to the Eero 6 router in my Ring Alarm Pro. Given that the Eero 6's practical limit is 128 clients, there just isn't a lot of room for light switches and dimmers.