i just moved into a new house and have decided to go the smart light switch route instead of smart bulbs. (i checked the forums here and it is possible to set them up with smartthings.) you need something to repeat signal for your sensors and zwave and zigbee switches are good at that. gives you smartthings control and you can use the existing switch to turn the light on and off cheap ones are usually chinese made models that have no safety certifications. this is just something to be aware of if you look at other brands/models most home routers have a limit of around 30 simultaneously connected devices, although some do go higher. the limits for z wave and zigbee are much higher. as @automated_house said, if you are using the wave or zig bee battery powered devices around the home, you need some main‘s power devices to act as repeaters unless it’s just a small apartment. as the faq @sidjohn1 linked to noted, wi-fi uses a lot more energy then zigbee or z wave just to run the radio.
it says the physical switch itself will only do on/off but can it be told to dim through smartthings? you only have to replace one side of the 3-way, leaving the dumb switch on the other side. first, many of these devices will work just as a regular physical wall switch whether the wi-fi is working or not. second, there is a difference between “wi-fi” and “internet.” some, but not all, can work on your local wi-fi even if your internet connection is out. and i know tp link kasa pocket sockets can continue to work with their app on your local wi-fi even if your internet connection is out. and they can’t work with smartthings locally the phillips hue bridge can work with both its own app locally and with the smartthings hub locally over your local wi-fi even if the cloud is not available. very useful and will build you a solid zigbee mesh. i have close to the max limit of smartthing devices so i would be up “s**t’s creek” if i would have chosen wifi switches/plugs.
z-wave, zigbee and wifi are the leading wireless smart home technologies but they are not compatible with each other. while it’s possible to build a smart z-wave and zigbee are low-cost wireless networks, similar to wi-fi in some ways, but designed to host the stuff you need to run your wireless z-wave devices in the u.s. are less prone to interference issues than either wi-fi or zigbee. that’s because z-wave runs on a different radio, z wave wifi bridge, z wave wifi bridge, zigbee z-wave light switch, zigbee hub, zigbee wifi.
wifi and zigbee are currently the most popular smart home protocols, with z-wave and bluetooth less popular. but they all have their own compared to wi-fi and zigbee, z-wave has the greatest non-line of sight range because it has a lower frequency. it means it sacrifices bandwidth to achieve both zigbee and z-wave run on “mesh” networks. this means that while both rely on a central wi-fi hub to connect to the internet, a signal can, z-wave hub, z-wave vs zigbee, z-wave to wifi converter, z-wave devices, best z-wave hub, is z-wave bluetooth, zigbee vs wifi 6, zigbee vs wifi for home automation, z-wave vs zigbee vs wifi reddit, z-wave vs wifi reddit.
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