The Best Smart In-Wall Dimmer Switches of 2026

Leviton’s second-gen dimmer switch is a notable upgrade over its predecessor, offering compatibility with all three smart assistants in a single switch that supports single-pole and three-way connections.

We had no problems integrating the dimmer switch with Alexa, Google Assistant, and Siri and using voice control to dim the lights during our tests. New to the second-gen switch is compatibility with August, Yale, and certain Schlage smart locks, so you can add lighting controls based on the status of your door lock.

Like most smart dimmer switches, a neutral wire is required. The switch, which does not require a hub, however, offers full-range dimming and adjustable fade rates to customize your smart lighting setup. The app supports scheduling and a useful auto-shutoff feature for when you only want the lights on for a certain amount of time, though it lacks geofencing, which means it can’t do things like turn on when you arrive home. Another downside to the switch is that the dimmer slider pops out partially, so you need to give it a gentle push back to secure it.

The dimmer can be paired with the battery-operated Leviton Decora Smart Anywhere Switch Companion, which lets you add a wireless three-way switch for additional lighting controls throughout your home. Overall, Leviton's second-gen dimmer performed well during our tests, and we think it would make a reliable smart dimmer for any home, no matter which smart assistant you prefer to use.

The Martin Jerry dimmer is a pleasure to work with and install. While the appearance of this dimmer isn’t quite as sleek as some others we tested, the physical switch is sturdy, the installation directions were clearly written and easy to follow, and the Smart Life app is intuitive and pleasant to use on both iOS and Android.

While this dimmer is not compatible with Apple HomeKit, it worked well during our tests with Alexa and Google Assistant. It does not offer customizable fade on/off rates. But as long as you have a neutral wire and you don’t need to integrate with HomeKit, the Martin Jerry dimmer offers a lot of value. As with many smart home devices, this dimmer requires a 2.4 GHz Wi-Fi connection. Overall, it’s a great a budget smart dimmer switch, but it’s not as versatile as our Best Overall pick, which works with all three smart assistants.

It took us several attempts to get Wemo’s second-gen smart dimmer switch up and running, but once we did it was smooth sailing from there. Wemo’s switch has one of the most satisfying digital dimmers, allowing you to slide your fingers up and down the switch to control the brightness of the overhead lights. Like others in our guide, the single-pole switch requires a neutral wire for installation.

This dimmer is full of useful features like Away Mode, which randomly turns the lights on and off to make it appear you're at home when you’re not, and Night Mode, which automatically dims the lights at certain times of the day. Schedules and timers are also supported in the Wemo app.

The app is straightforward and easy to use when it comes to enabling these features and controlling the dimmer.

One thing to know about the switch’s design, which might not be evident to the naked eye, is that it works with single and multi-switch rocker switch plates, but it does not fit with metal faceplates. Despite the setup headaches, Wemo’s dimmer switch is a solid and reliable choice that’s full of features and smart home versatility.

This switch looks a lot like a Kasa smart light switch, but it has up and down buttons to dim the lights, as well as an indicator light that shows what level brightness the lights are set to. The dimmer switch does not work with Apple HomeKit, but it worked well during our testing for hands-free voice control with Alexa and Google Assistant.

The companion app offers features like creating groups, setting timers, and scheduling. Away Mode, a setting that turns the lights on and off at random times, is also available. This feature is available on other smart dimmers, but not all.

The Kasa app offers unique features like runtimes for daily, weekly, and monthly totals. It’s not energy monitoring, but these helpful insights can help you cut back on your power consumption, resulting in potential savings on your next electric bill. In the app, you can customize each light switch with a photo from your library—a custom feature we don’t see often.

One annoying thing about the lights is that the power supply light on the front of the switch remains on at all times. It’s not glaringly bright, but if you like to sleep in total darkness, check out others in our guide that don’t glow. If you can get past this, Kasa’s dimmer switch is a reliable addition to your light fixtures that works with Alexa and Google for hands-free voice control.

Getting the Legrand Radiant Smart Dimmer Switch up and running presented us with some challenges during testing, as we could not get it to connect after several attempts. Once we finally got it connected in the Legrand app and with smart assistants Alexa and Google Assistant, it was a delight to use. It boasts compatibility with single-pole and three-way switches, making it an option to replace any switch in your home.

Unlike many other dimmers on our list, Legrand's comes in three colorways (white, light almond, and nickel) to match your home's decor. A neutral wire is required for installation. Features like scheduling, timers, geofencing, and scene control are offered in the companion app. Overall, the switch works well for hands-free voice control but is more expensive than other dimmers in our guide that offer similar smarts, features, and a hassle-free setup.

Leviton's Decora Smart Wi-Fi Voice Dimmer with Alexa is the only dimmer switch we've tested with a smart assistant built into the switch itself. Our testing revealed that the switch is easy to use, works with Alexa and Google Assistant, and is simple to control using the My Leviton app or voice controls. When using the My Leviton app and smart assistants, there’s hardly any delay in turning the lights on/off or adjusting the brightness.

Like most dimmers, a neutral wire is required for installing this there-way smart dimmer switch. Right up front, we ran into a few connectivity issues during our testing when the switch randomly lost its connection to Wi-Fi. Those problems were quickly resolved when the switch reconnected to the internet all by itself each time. The Alexa dimmer switch’s onboard microphone range isn’t quite as powerful as a standalone Echo speaker, so you’ll need to stand close to the switch for Alexa to hear you correctly.

You may be wondering why you need a dimmer switch that houses Alexa, and the truth is, you probably don’t, especially since the sensitivity isn’t as good as what you’ll get in an Echo speaker (or your phone for that matter). But, if you’re installing the dimmer switch in an area of your home where you might not normally place an Echo speaker (like the dining room), it’s nice to have Alexa hidden in the switch, so you can easily control your lights (and more) without taking up any extra coffee table space.