Winner
Updated October 2026
Data from the official Leviton and Lutron sites.
2026 verdict
For a smart wall switch that skips the hub entirely, the Leviton Decora Smart Wi-Fi Switch D315S is the stronger buy over the Lutron Caseta Original Smart Dimmer Switch, ahead on price and, categorically, on connectivity and integrations.
It joins 2.4 GHz Wi-Fi and Bluetooth on its own and, being Matter certified, commissions straight into Apple Home, Alexa, Google Home, SmartThings and Home Assistant with no bridge to buy. The Lutron Caseta Original Smart Dimmer Switch is the better-reviewed of the two and solves a problem the Leviton cannot: it needs no neutral wire at all, which is what makes it fit into wall boxes the D315S simply cannot go into, though nothing about it is smart until you add the separate Lutron Smart Hub, and it stays outside Matter entirely. Buy the Leviton Decora Smart Wi-Fi Switch D315S when the box has a neutral and you want Matter with no hub; buy the Lutron Caseta Original Smart Dimmer Switch for no-neutral dimming on a radio that doesn't depend on your Wi-Fi.
Connectivity
- Wi-Fi 2.4 GHz
- Bluetooth
vs
$64.95
Also sold in packs
- Pack of 2$129.90$64.95 per unitBuy
- Pack of 2C$193.81C$96.91 per unitBuy
- Pack of 4$259.80$64.95 per unitBuy
- Pack of 4C$387.61C$96.90 per unitBuy
- Pack of 5$324.75$64.95 per unitBuy
- Pack of 5C$484.51C$96.90 per unitBuy
- Pack of 6$389.70$64.95 per unitBuy
- Pack of 6C$545.39C$90.90 per unitBuy
- Pack of 8$519.60$64.95 per unitBuy
- Pack of 8C$727.18C$90.90 per unitBuy
- Pack of 10$649.50$64.95 per unitBuy
- Pack of 10Buy
- Pack of 10Buy
- Pack of 10C$908.98C$90.90 per unitBuy
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| Feature | Leviton Decora Smart Wi-Fi Switch D315S | Lutron Caseta Original Smart Dimmer Switch | Winner |
|---|---|---|---|
| Price | $39.00 | $64.95 | Leviton Decora Smart Wi-Fi Switch D315S |
| Rating | 4.5 | 4.7 | Lutron Caseta Original Smart Dimmer Switch |
| Connectivity | 2.4 GHz WiFi, Bluetooth | None | Leviton Decora Smart Wi-Fi Switch D315S |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant | Leviton Decora Smart Wi-Fi Switch D315S |
| Warranty | 1 year | 1 year | Tie |
| Switches | 1 | 1 | Tie |
| Energy Monitoring | NO | NO | Tie |
| Power Off Memory | YES | YES | Tie |
| Status LED | YES | YES | Tie |
What the differences mean
Neutral wire
The Lutron Caseta Original Smart Dimmer Switch is a two-wire design built for retrofit, so it needs no neutral wire in the box at all. The Leviton Decora Smart Wi-Fi Switch D315S requires a neutral wire, which rules it out of the same older boxes the Lutron is built for.
What it takes to make either one smart
The Leviton Decora Smart Wi-Fi Switch D315S joins 2.4 GHz Wi-Fi and Bluetooth on its own, with no bridge to buy. The Lutron Caseta Original Smart Dimmer Switch does nothing smart at all until a separate Lutron Smart Hub is added; on its own it's just a dimmer.
Dimming versus motor loads
The Lutron Caseta Original Smart Dimmer Switch dims up to 600W of incandescent or halogen and 150W of dimmable LED. The Leviton Decora Smart Wi-Fi Switch D315S is on and off only, but its 15A general-use and 1/3 HP motor rating covers a ceiling fan or an exhaust fan, loads a dimmer isn't built to switch.
Matter certification
The Leviton Decora Smart Wi-Fi Switch D315S is Matter certified, so the same switch can be shared across several controllers, Apple Home, SmartThings and Home Assistant among them, at once. The Lutron Caseta Original Smart Dimmer Switch has no Matter certification and stays inside Lutron's own hub and its partner integrations.
Radio technology
The Lutron Caseta Original Smart Dimmer Switch talks to its hub over Lutron's own Clear Connect RF, which keeps working through a Wi-Fi outage or a router reboot. The Leviton Decora Smart Wi-Fi Switch D315S depends on your 2.4 GHz Wi-Fi network being up.
Which one to buy if
- the wall box has no neutral wire
The Lutron Caseta Original Smart Dimmer Switch is a two-wire retrofit design; the Leviton Decora Smart Wi-Fi Switch D315S requires a neutral.
- you want the switch smart on its own, with no extra hub to buy
The Leviton Decora Smart Wi-Fi Switch D315S joins Wi-Fi and Matter directly; the Lutron needs its own separate hub before anything is smart.
- the circuit is a light you actually want to dim
The Lutron Caseta Original Smart Dimmer Switch dims incandescent, halogen and LED loads; the Leviton Decora Smart Wi-Fi Switch D315S is on and off only.
- the circuit is a ceiling fan or another motor load
The Leviton Decora Smart Wi-Fi Switch D315S is rated for 1/3 HP motor loads; a dimmer like the Lutron isn't built to switch a motor.
Winner
$39.00
- + Price: $39.00
- + Connectivity: 2.4 GHz WiFi, Bluetooth
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Rating: 4.5 vs 4.7
$64.95
- + Rating: 4.7
- - Price: $64.95 vs $39.00
- - Connectivity: None vs 2.4 GHz WiFi, Bluetooth
What owners say
The single loudest theme among Lutron Caseta Original Smart Dimmer Switch owners is reliability: people describe running dozens of these across a whole house for the better part of a decade with essentially no failures, crediting Lutron's own Clear Connect radio rather than Wi-Fi as the reason a router reboot or a congested band never reaches the lights. Installation gets mentioned just as often, typically a fifteen minute job with one screwdriver, made possible in older homes by the fact that no neutral wire is needed at all. Their complaints centre on what isn't included: the Lutron smart hub is a separate purchase and the dimmer behaves like an ordinary switch without it, the wallplate isn't in the box either, and on some LED fixtures the two-wire dimming design can cause a hum or a flicker that a neutral-wire dimmer wouldn't.
Frequently Asked Questions
Which is better overall: the Leviton Decora Smart Wi-Fi Switch D315S or the Lutron Caseta Original Smart Dimmer Switch?
The Leviton Decora Smart Wi-Fi Switch D315S wins overall on price, connectivity and integrations, including hub-free Matter. The Lutron Caseta Original Smart Dimmer Switch is the better-reviewed no-neutral dimmer once you add its hub.
What is the biggest difference between the Leviton Decora Smart Wi-Fi Switch D315S and the Lutron Caseta Original Smart Dimmer Switch?
The Leviton Decora Smart Wi-Fi Switch D315S is a hub-free Matter on/off switch that needs a neutral wire. The Lutron Caseta Original Smart Dimmer Switch is a two-wire dimmer on Lutron's Clear Connect radio and isn't smart at all until the Lutron hub is added.
Which switch works in a box with no neutral wire?
The Lutron Caseta Original Smart Dimmer Switch is built for no-neutral boxes. The Leviton Decora Smart Wi-Fi Switch D315S requires a neutral wire.
Does the Leviton Decora Smart Wi-Fi Switch D315S need the Lutron hub or any other hub?
No. It joins 2.4 GHz Wi-Fi and Bluetooth on its own and is Matter certified, so any Matter controller can add it directly with no bridge in between.
Who should buy the Leviton Decora Smart Wi-Fi Switch D315S?
Buy it if the box has a neutral and you want Matter, Apple Home and Bluetooth setup with no extra hub, and you don't need dimming.
Who should buy the Lutron Caseta Original Smart Dimmer Switch?
Choose it for a dimmable, no-neutral circuit, power-off memory, and assistants reached through the Lutron hub rather than Wi-Fi.
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