# SONOFF S31 / S31 Lite

*SONOFF / S31*

> The SONOFF S31 / S31 Lite is a Wi-Fi plug, so it needs no hub. It fits US sockets, handles 15 A, and works with Alexa and Google Home. Only the S31 has energy monitoring, not the S31 Lite. It suits HomeKit, Google Home, Alexa, SmartThings and Home Assistant users through an integration (a Matter bridge).

- Canonical page: https://smarthomecanon.com/devices/sonoff-s31-s31-lite
- Last checked: 2026-10-10

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [SONOFF](https://smarthomecanon.com/brands/sonoff) |
| Category | Plug |
| Model numbers | S31 |
| Status | Current[^1] |
| Radio | Wi-Fi 2.4 GHz[^1] |
| Max load | 15 A at 120 V[^1] |
| Energy monitoring | S31 only[^1] |
| Zigbee router | unknown |

## Integration paths

**How the SONOFF S31 / S31 Lite connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter via Bridge](https://smarthomecanon.com/protocols/matter-bridged) | eWeLink CUBE OS Matter bridge[^1] | Yes[^1] | unknown |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | eWeLink app[^1] | unknown | unknown |

**Platform support for the SONOFF S31 / S31 Lite**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter via Bridge | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Via integration[^1] |  |
| Matter via Bridge | [Google Home](https://smarthomecanon.com/platforms/google-home) | Via integration[^1] |  |
| Matter via Bridge | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Via integration[^1] |  |
| Matter via Bridge | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^1] |  |
| Matter via Bridge | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^1] |  |
| Wi-Fi cloud | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Via integration[^1] |  |
| Wi-Fi cloud | [Google Home](https://smarthomecanon.com/platforms/google-home) | Via integration[^1] |  |

## Related pages

- [SONOFF smart plugs](https://smarthomecanon.com/lines/sonoff-plugs) (line)
- [SONOFF](https://smarthomecanon.com/brands/sonoff) (brand)
- [Matter through a bridge](https://smarthomecanon.com/protocols/matter-bridged) (protocol)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)

## Sources

[^1]: SONOFF store: SONOFF S31/S31 LITE – WiFi Smart Plug with Energy Monitoring US Type. https://sonoff.tech/products/sonoff-s31-s31-lite-compact-design-smart-plug-with-energy-monitoring-us-type (manufacturer, checked 2026-10-10)