Outcome
This companion comparison post compares Sonoff | Sonoff Dual R2/R3 to the top live alternatives found on April 10, 2026, including current Amazon and Alibaba checks.
Source Device
The Sonoff Dual R3 is a dual-channel Wi-Fi relay designed for controlling two circuits or a motorized load like blinds. It integrates with eWeLink and supports custom firmware like ESPHome/Tasmota for local control. It operates on AC mains power and does not require a separate hub. Key features include dual relay outputs, 2.4 GHz Wi-Fi, and voice control via Alexa/Google when integrated with eWeLink or custom firmware.
Top Alternatives
- Shelly 2.5 Double Relay Switch and Roller Shutter: The Shelly 2.5 is a direct competitor, offering dual-channel Wi-Fi relay functionality for controlling two circuits or motorized loads (like roller shutters/blinds). It features power metering, a compact size for in-wall installation, and supports local control without a hub. It's compatible with Home Assistant, similar to the Sonoff Dual R3's capabilities.
- Seeed Studio 2-Channel AC Wi-Fi Relay Module (XIAO ESP32C3): This device is pre-flashed with ESPHome firmware, offering native Home Assistant integration and local control, similar to the Sonoff Dual R3's reflashability. It provides dual-channel control for AC loads and includes power metering, making it a powerful and developer-friendly alternative.
- Athom 2CH ESP32 RF433 Relay Module (Tasmota/ESPHome/Homekit/MQTT): Athom Tech offers dual-channel relay modules pre-flashed with popular open-source firmware like Tasmota, ESPHome, or Homekit/MQTT. This provides excellent local control and flexibility, directly comparable to the Sonoff Dual R3's custom firmware capabilities, and appeals to the same DIY-oriented buyer.
Comparison Matrix
| Category | Sonoff | Sonoff Dual R2/R3 | Shelly 2.5 Double Relay Switch and Roller Shutter | Seeed Studio 2-Channel AC Wi-Fi Relay Module (XIAO ESP32C3) | Athom 2CH ESP32 RF433 Relay Module (Tasmota/ESPHome/Homekit/MQTT) |
|---|---|---|---|---|
| Features | Source device | ★★★★☆ | ★★★★☆ | ★★★★☆ |
| Interoperability | Source device | ★★★★☆ | ★★★★★ | ★★★★★ |
| Setup Ease | Source device | ★★★☆☆ | ★★★☆☆ | ★★★☆☆ |
| Cloud Dependency | Source device | ★★★☆☆ | ★☆☆☆☆ | ★☆☆☆☆ |
| Vendor Trust | Source device | ★★★★☆ | ★★★★☆ | ★★★☆☆ |
| Overall | Source device | ★★★★☆ | ★★★★☆ | ★★★★☆ |
Pricing And Availability
| Device | Amazon Price | Alibaba Price |
|---|---|---|
| Shelly 2.5 Double Relay Switch and Roller Shutter | Unavailable | US $25.43 |
| Seeed Studio 2-Channel AC Wi-Fi Relay Module (XIAO ESP32C3) | Unavailable | US $21.34 |
| Athom 2CH ESP32 RF433 Relay Module (Tasmota/ESPHome/Homekit/MQTT) | Unavailable | US $17.22 |
Operator Notes
- Prices and availability are subject to change and reflect information found on April 10, 2026. Amazon availability was difficult to confirm for some specific models, often showing newer generations or third-party sellers with limited stock.
- The scoring for 'Cloud Dependency' reflects the default state. Devices that can be easily reflashed or configured for local control (like Sonoff Dual R3, Seeed Studio, and Athom) receive lower scores, indicating less cloud dependency.
Source URLs
Shelly 2.5 Double Relay Switch and Roller Shutter | Official: https://shelly.com/
Shelly 2.5 Double Relay Switch and Roller Shutter | Home Assistant: https://www.home-assistant.io/integrations/shelly/
Shelly 2.5 Double Relay Switch and Roller Shutter | Amazon: https://www.amazon.com/dp/B07V224D28
Shelly 2.5 Double Relay Switch and Roller Shutter | Alibaba: https://www.aliexpress.com/item/1005001614050209.html
Seeed Studio 2-Channel AC Wi-Fi Relay Module (XIAO ESP32C3) | Official: https://www.seeedstudio.com/XIAO-2-Channel-Wi-Fi-AC-Relay-p-6309.html
Seeed Studio 2-Channel AC Wi-Fi Relay Module (XIAO ESP32C3) | Home Assistant: https://wiki.seeedstudio.com/2-Channel-Wi-Fi-AC-Relay-Module-In-Home-Assistant/
Seeed Studio 2-Channel AC Wi-Fi Relay Module (XIAO ESP32C3) | Amazon: Unavailable
Seeed Studio 2-Channel AC Wi-Fi Relay Module (XIAO ESP32C3) | Alibaba: https://www.aliexpress.com/item/1005006451630048.html
Athom 2CH ESP32 RF433 Relay Module (Tasmota/ESPHome/Homekit/MQTT) | Official: https://www.athom.tech/
Athom 2CH ESP32 RF433 Relay Module (Tasmota/ESPHome/Homekit/MQTT) | Home Assistant: https://www.athom.tech/esphome
Athom 2CH ESP32 RF433 Relay Module (Tasmota/ESPHome/Homekit/MQTT) | Amazon: Unavailable
Athom 2CH ESP32 RF433 Relay Module (Tasmota/ESPHome/Homekit/MQTT) | Alibaba: https://www.aliexpress.com/item/1005005934149020.html