Outcome
This companion comparison post compares Sonoff Smart Switches to the top live alternatives found on April 10, 2026, including current Amazon and Alibaba checks.
Source Device
Sonoff smart switches are WiFi-enabled relay modules that retrofit existing electrical fixtures with smart control capabilities while preserving manual switch operation. The product line ranges from basic single-relay modules to dual-channel switches with power monitoring, temperature sensing, and advanced features. Designed for DIY installation in junction boxes, Sonoff devices work natively with the eWeLink cloud app but can be flashed with Tasmota or ESPHome firmware for complete local control, making them a favorite among Home Assistant builders seeking affordable, hackable automation hardware.
Top Alternatives
- Shelly Plus 1PM Gen4 Smart Relay: The Shelly Plus 1PM Gen4 is a direct competitor to Sonoff smart switches, offering Wi-Fi connectivity, power monitoring, and a compact form factor for retrofitting. It stands out with multi-protocol support (Wi-Fi, Zigbee, Matter, Bluetooth) and strong native local control options, making it highly appealing to Home Assistant users who value cloud independence.
- Zooz ZEN51 Dry Contact Relay: The Zooz ZEN51 offers a Z-Wave alternative to Sonoff's Wi-Fi relays, providing robust local control and strong Home Assistant integration via Z-Wave JS. Its dry contact capability is particularly useful for specific applications like garage door openers, and it allows users to retain existing wall switches while adding smart functionality.
- Athom Power Monitoring Mini Relay (Tasmota/ESPHome): Athom devices directly cater to the 'hackable' and 'local control' aspects that make Sonoff popular among Home Assistant users. By coming pre-flashed with Tasmota or ESPHome, they eliminate the need for DIY firmware flashing, offering a ready-to-use, cloud-free solution with power monitoring capabilities.
Comparison Matrix
| Category | Sonoff Smart Switches | Shelly Plus 1PM Gen4 Smart Relay | Zooz ZEN51 Dry Contact Relay | Athom Power Monitoring Mini Relay (Tasmota/ESPHome) |
|---|---|---|---|---|
| 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 Plus 1PM Gen4 Smart Relay | $27.99 USD | Approximately $17 – $25 USD (for similar Shelly 1PM models, bulk pricing may vary) |
| Zooz ZEN51 Dry Contact Relay | Unavailable | Unavailable |
| Athom Power Monitoring Mini Relay (Tasmota/ESPHome) | Unavailable | Approximately $20.02 – $29.73 USD (for IoTorero Tasmota Mini Relay with power monitoring) |
Operator Notes
- Prices and availability are subject to change. The 'Unavailable' status for Amazon/Alibaba for some devices indicates that a direct, current listing was not found during the live web search, not necessarily that the product is never sold there.
- The scores are based on the evidence found during the live web search and reflect a comparison against the source device (Sonoff Smart Switches) and general smart home market expectations for similar devices.
Source URLs
Shelly Plus 1PM Gen4 Smart Relay | Official: https://www.shelly.com/en-us/products/product-overview/shelly-plus-1pm-gen4
Shelly Plus 1PM Gen4 Smart Relay | Home Assistant: https://www.home-assistant.io/integrations/shelly/
Shelly Plus 1PM Gen4 Smart Relay | Amazon: https://www.amazon.com/Shelly-Plus-1PM-Gen4-Monitoring/dp/B0CP27116P
Shelly Plus 1PM Gen4 Smart Relay | Alibaba: https://www.aliexpress.com/w/wholesale-shelly-1pm-gen4.html
Zooz ZEN51 Dry Contact Relay | Official: https://www.thesmartesthouse.com/products/zooz-700-series-z-wave-long-range-dry-contact-relay-zen51-lr
Zooz ZEN51 Dry Contact Relay | Home Assistant: https://www.home-assistant.io/integrations/zooz/
Zooz ZEN51 Dry Contact Relay | Amazon: Unavailable on Amazon (direct search did not yield current listing)
Zooz ZEN51 Dry Contact Relay | Alibaba: Unavailable on Alibaba (direct search did not yield current listing)
Athom Power Monitoring Mini Relay (Tasmota/ESPHome) | Official: https://www.athom.tech/tasmota/power-monitoring-mini-relay-for-tasmota
Athom Power Monitoring Mini Relay (Tasmota/ESPHome) | Home Assistant: https://www.home-assistant.io/integrations/tasmota/
Athom Power Monitoring Mini Relay (Tasmota/ESPHome) | Amazon: Unavailable on Amazon (typically sold direct or via AliExpress)
Athom Power Monitoring Mini Relay (Tasmota/ESPHome) | Alibaba: https://www.aliexpress.com/item/1005006240292728.html