switch

SONOFF MINI Extreme R4 (Matter)

budget local: excellent Wi-FiMatter

Price: $12.90 verified Sep 6, 2026
HA fit: good
Works offline: yes
Setup: advanced
Hub needed: no

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SONOFF MINI Extreme R4 (Matter) smart switch — One of the smallest Matter-compatible smart relays — fits where others can't

Quick verdict

The SONOFF MINI R4 Matter edition packs Matter support into an absurdly small package. It hides behind your existing switch and gives you local control through Home Assistant, Apple Home, Google Home, or Alexa — all without cloud. The size is the real selling point: it fits in switch boxes where most competitors simply won't.

Standout: One of the smallest Matter-compatible smart relays — fits where others can't.

Notes last checked May 31, 2026.

Compatibility snapshot

Home Assistant good

Apple Home good

Google Home good

Alexa good

Works offline yes

Setup advanced

Extra hub needed no

Power hardwired

Local control facts

Home Assistant: matter integration, Local Push (home-assistant.io, checked Sep 10, 2026)

Why it stands out

extremely compact — fits in the tightest switch boxes
Matter support for fully local cross-platform control
dual neutral terminals make wiring two neutrals easy without extra connectors

Reasons to hesitate

no dimming — on/off relay only
Wi-Fi based, so no mesh networking benefits
tiny terminal screws can be fiddly to wire

Best for

tight switch boxes where other relays won't fit
Matter-first setups wanting an affordable behind-the-switch relay

Avoid if

you need dimming capability
you're not comfortable with in-wall electrical wiring

Privacy and local-control notes

Matter-native device. When paired via Matter, control is fully local with no cloud dependency. The eWeLink app uses cloud, but Matter bypasses it entirely.

Home Assistant support: supported · integration path: matter.

Buying reality check

Price notes: About $13 on Amazon (verified 2026-08-28).

Verified price reads: lowest seen $12.9, latest $12.9 on Sep 6, 2026.

Sep 6, 2026$12.9amazon
Aug 28, 2026$12.9amazon

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Verified against

The compatibility notes above have not been through the source audit yet. The manufacturer's page is here; the notes were last checked May 31, 2026.

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