Sonoff Zigbee Smart Plug S40 Lite vs TP-Link Tapo P125M

The TP-Link Tapo P125M wins overall. It costs less, carries a longer warranty, and offers broader wireless connectivity with both Wi-Fi and Bluetooth. The Sonoff Zigbee Smart Plug S40 Lite answers back with Zigbee router functionality that the Tapo P125M does not have.

How they connect. The Sonoff Zigbee Smart Plug S40 Lite has no Wi-Fi or Bluetooth radio and needs a separate Zigbee hub to work at all. The TP-Link Tapo P125M connects directly over 2.4 GHz Wi-Fi, uses Bluetooth only for onboarding, and is Matter-certified, so it can join Apple Home, Google Home, Alexa, or SmartThings through a Matter controller already in the house.

Yes. It doubles as a Zigbee router, repeating signal to help other Zigbee devices farther from the hub stay connected, which the TP-Link Tapo P125M, a Wi-Fi and Matter device with no Zigbee radio, cannot do.

No. Neither the Sonoff Zigbee Smart Plug S40 Lite nor the TP-Link Tapo P125M tracks power consumption; both are on/off plugs with schedules and timers.

Buyers who want an easy, Matter-certified plug that reaches Apple Home, Google Home, Alexa, or SmartThings without adding a Zigbee coordinator, plus a longer warranty, should choose the TP-Link Tapo P125M.

Buyers who already run a Zigbee mesh through Home Assistant, Zigbee2MQTT, or a SONOFF hub, and want the plug itself to help extend coverage, should choose the Sonoff Zigbee Smart Plug S40 Lite.