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The Leviton also lacks the geofencing feature found in Lutron's app. The Leviton Decora works with Alexa, Google Assistant HomeKit, August and IFTTT, but it supports fewer smart home systems than Lutron does.
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As before, it works with three-way switches, but Leviton also released an Anywhere Dimmer (sold separately), which lets you add a secondary light switch without having to connect any wires.
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However, installation is a bit easier in this model. The second-generation Leviton Decora Smart Wi-Fi Dimmer looks much the same as the original - an unobtrusive paddle switch with a smaller toggle on the right. At around $70, it's more expensive than most other smart light switches, but the C-Start Smart Switch gives you a lot for the price. Like other Alexa-enabled switches (it also works with Google Assistant), the C-Start dimmer responds to voice commands, but the C by GE Android app needs some work setting up an automation for a room is confusing, and it can even be difficult to tell when you've scheduled it to go on and off. If you turn it off with the switch, after a few minutes C-Start will engage the motion sensor again, or you can disable the sensor via the app in case you don't want it switched on in the middle of the night. The switch includes an ambient light sensor (so it can be set not to come on in daylight) and a motion sensor to automatically trigger the light. Installation, as with most other smart switches, requires a neutral wire, but it's fairly straightforward. The Wi-Fi-connected switch works with all kinds of bulbs, has apps for iOS and Android, and lets you control lights with a touch, voice, motion or remotely via a smartphone. The GE C-Start Smart Switch isn't the sexiest or sleekest, but it's the best smart light switch because it gets the job done and is packed with features. However, it doesn’t feature a motion or ambient light sensor and it lacks two-factor authentication. It looks like a traditional paddle switch, is easy to install and doesn’t require a hub. If you’re looking for something more subtle, then Leviton's Decora smart dimmer might be to your taste. However, the look of GE's smart switch isn't for everyone. The dimmer switch even works with a wide range of bulb types. It also comes with an ambient light sensor, which means it will self-adjust the brightness if there’s daylight or sunlight in the room, ultimately saving you money. It’s compatible with most smart home hubs, including Alexa and Google Home and features built-in motion sensors, so the lights will automatically switch on when you come home. After putting countless models to the test, we recommend the GE C-Start Smart Switch Motion Sensing Dimmer as the best smart light switch overall.