Sonoff launches the MINI ONE, a compact in-wall relay supporting Matter over Wi-Fi, emphasising local control, manual switch preservation, and broad ecosystem compatibility, simplifying retrofit installations for smart homes.
Sonoff’s latest compact smart switch is another entry in the company’s long line of retrofit modules, but this one is notable for how little friction it introduces for people already using Matter-based systems. The MINI ONE is a small in-wall relay with one output and one wired input, intended to sit behind an existing switch and keep manual control in place. According to Sonoff’s product information, it supports Matter over Wi-Fi, works with major ecosystems including Apple Home, Google Home and Alexa, and is rated for loads up to 16A at 100–240V, or 3,840W. The company also says the unit operates between -10°C and 40°C and is designed to fit standard wall boxes.
In practice, the attraction is not just that it works, but that it can work locally. The device can be used through the eWeLink app, while Home Assistant support is available through Matter and local network control. Sonoff has also been pushing its own local management path through the OpenEdge web console, which reduces reliance on the cloud and exposes more configuration options than Home Assistant currently shows for the device. Those include timers, countdown functions, random switching, device logs, inching mode, blue LED control and MQTT support. The local web interface also includes update tools, and the firmware on the unit was updated from version 1.02 to 1.03 in a matter of minutes, according to the hands-on account.
That balance between convenience and local control fits Sonoff’s broader approach to Home Assistant integration. The company has previously described a local-first eWeLink add-on for Home Assistant that can use LAN control before falling back to cloud access if necessary. Earlier coverage of Sonoff’s Mini range has also highlighted the appeal of compact relays that preserve a physical switch while adding app-based automation. The MINI ONE follows the same logic, but with Matter support and a more capable local management layer than earlier models offered.
For users evaluating whether to buy into the device, the practical question is less about novelty than about installation and flexibility. Sonoff’s published specifications suggest a product aimed at straightforward retrofitting, rather than a rewiring project. The MINI ONE is built for conventional domestic use, and its appeal lies in blending manual switching, smart-home interoperability and local administration in a small module. In a market where many connected switches still depend heavily on cloud services, that combination is likely to matter more than the minimal hardware changes on the outside.
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