SwitchBot Relay Switch 1 vs 2PM: Which Smart Relay Should You Use?

Quick Answer

If you need Matter support, a built-in Bluetooth repeater, and the ability to control high-power appliances, choose the SwitchBot Relay Switch 2PM. For basic smart switching with voice control and a lower price, the SwitchBot Relay Switch 1 is a solid choice—though it lacks Matter and the built-in repeater.

Smart relays let you control wired appliances—like lights, garage doors, or water heaters—from your phone or voice assistant. SwitchBot offers two popular models: the Relay Switch 1 and the Relay Switch 2PM. Both can make old devices smarter, but they serve different needs.

This comparison focuses on the key differences you’ll actually notice: protocol support, built-in connectivity features, and power handling. We’ll help you decide which one belongs in your home automation setup.

What’s the Difference Between the Relay Switch 1 and 2PM?

The SwitchBot Relay Switch 2PM is the more advanced model. It’s described as the world’s first smart relay switch with a built-in Bluetooth repeater that supports Matter. That means it can work with Alexa, Apple HomeKit, Google Home, and SmartThings—and it can also extend your Bluetooth network for other smart devices.

The Relay Switch 1, on the other hand, is a more basic smart relay. It connects to your Wi-Fi and works with major voice assistants, but it doesn’t include the Matter support or the built-in Bluetooth repeater found in the 2PM. If you’re building a simple setup without needing cross-platform compatibility, the 1 is enough.

• Check if your voice assistant ecosystem requires Matter—if so, the 2PM is the safer bet.

Matter Support and Smart Home Compatibility

Matter is the new smart home standard that lets devices from different brands work together without needing separate hubs or bridges. The SwitchBot Relay Switch 2PM supports Matter, which means it can be controlled directly by any Matter-compatible hub or speaker from Alexa, Apple HomeKit, Google Home, or SmartThings.

The Relay Switch 1 does not support Matter. It still works with major voice assistants, but you may need a separate SwitchBot Hub to integrate with certain ecosystems. If you’re planning to expand your smart home with devices from multiple brands, the 2PM’s Matter support gives you more flexibility.

• If you already use Matter devices, the 2PM will integrate more smoothly.

Built-in Bluetooth Repeater: A Hidden Advantage

The SwitchBot Relay Switch 2PM includes a built-in Bluetooth repeater. This is a big deal if you have other Bluetooth devices—like SwitchBot sensors or buttons—that are far from your hub. The repeater extends the range, making your whole smart home more reliable.

The Relay Switch 1 doesn’t have this feature. If you have a large home or multiple floors, you might already have connectivity issues with Bluetooth devices. The 2PM can help solve that, but it costs more. For small apartments or setups where all devices are close to the hub, the 1 is fine.

• If you have dead zones for Bluetooth devices, the 2PM’s repeater is worth the extra cost.

Trade-Offs to Consider

• Matter support: The 2PM supports Matter; the 1 does not. Choose the 2PM if you want future-proof, cross-ecosystem compatibility.
• Built-in Bluetooth repeater: The 2PM includes a repeater to extend Bluetooth range; the 1 doesn't. If you have connectivity issues, the 2PM is worth the extra cost.
• Price: The 1 is more budget-friendly, while the 2PM offers more features. If you only need basic switching, the 1 saves money.

Key Product Facts

• SwitchBot Relay Switch 2PM: World's First Smart Relay Switch with a Built-in Bluetooth Repeater That Supports Matter. Allows direct control of appliances through Alexa, Apple HomeKit, Google Home, and SmartThings. You get cross-platform voice control and a stronger Bluetooth network, making it easier to expand your smart home without extra hubs.
• SwitchBot Relay Switch 2PM: With its integrated gateway, you can safely and conveniently connect with other smart devices from different brands. This reduces the need for multiple brand-specific hubs, simplifying your setup and saving space.

Which One Should You Choose?

Best for

• Tech enthusiasts who want Matter support and a built-in Bluetooth repeater.
• Homes with multiple smart devices from different brands that need seamless integration.

Not for

• Budget-conscious users who only need basic on/off control of a single appliance.
• Small setups where all devices are already within reliable Bluetooth range.

The SwitchBot Relay Switch 2PM is the more capable smart relay, offering Matter support and a built-in Bluetooth repeater for a more connected home. The SwitchBot Relay Switch 1 is a simpler, more affordable option for basic smart switching. Assess your current setup and future plans to pick the one that fits your home automation needs.