Amazon Smart Plug vs Sonoff Zigbee Smart Plug S40 Lite

The Sonoff Zigbee Smart Plug S40 Lite wins overall. It costs less, adds a physical on/off button, works as a Zigbee router to extend mesh range, and reaches more ecosystems, including Google Home, SmartThings and Home Assistant. The Amazon Smart Plug keeps a higher owner rating and needs no hub at all.

How they connect. The Amazon Smart Plug talks directly to 2.4 GHz Wi-Fi and only to Alexa, with no hub required. The Sonoff Zigbee Smart Plug S40 Lite has no Wi-Fi or Bluetooth radio at all: it needs a Zigbee hub or coordinator to work, but in exchange it reaches Google Home, Alexa, SmartThings, Home Assistant and, through a SONOFF hub, Apple Home and Matter.

No. It has no Wi-Fi or Bluetooth radio, so it depends entirely on a Zigbee hub or coordinator, such as a SONOFF Zigbee Bridge or a Zigbee2MQTT-compatible dongle, to pair and to be controlled. The Amazon Smart Plug is the opposite: it needs no hub, only Alexa and a Wi-Fi connection.

Yes, the Sonoff Zigbee Smart Plug S40 Lite doubles as a Zigbee router, repeating signal to help other Zigbee devices farther from the hub stay connected. The Amazon Smart Plug has no Zigbee radio, so it cannot do this.

Alexa-only households that want the simplest possible setup, with no hub or coordinator to buy or configure, should choose the Amazon Smart Plug.

Buyers who already run a Zigbee mesh through Home Assistant, Zigbee2MQTT, or a SONOFF hub, and want both a switched outlet and extra router coverage, should choose the Sonoff Zigbee Smart Plug S40 Lite.