Sonoff iPlug Gen2 S61s Zigbee Review: A Metering Plug That Extends Your Zigbee Mesh
The Sonoff iPlug Gen2 S61s Type B (S61SZBTPB) is a Zigbee 3.0 smart plug for North American outlets that pairs to a Zigbee coordinator rather than your Wi-Fi. Alongside switching, it reports live voltage, current, power and consumption with 180 days of history and a data export, and it cuts the load when a configured current, voltage or power threshold is exceeded. The main catch is upfront: it cannot do anything on its own without a Zigbee hub or dongle, it reaches Apple Home and Matter only through a SONOFF bridge, and the 15A and 1875W ceiling sets its limit.
- Zigbee and Home Assistant users
- Energy cost tracking
- Extending Zigbee mesh coverage
- Homes with an existing Zigbee hub
Pros
- Zigbee 3.0 with Home Assistant support through Zigbee2MQTT and ZHA
- Works as a Zigbee router, repeating signal for up to 64 end devices
- Real-time energy monitoring with 180 days of history and data export
- Overload protection that cuts the load at a configured current, voltage or power threshold
- 15A and 1875W rating with a physical on/off button
- Two-year warranty
Cons
- Needs a Zigbee hub or coordinator, with no Wi-Fi or Bluetooth of its own
- Apple Home and Matter only through a SONOFF bridge
- North American Type B format, indoor use only
- No USB charging port
Who is the Sonoff iPlug Gen2 S61s Zigbee for?
This is a plug for a household that already runs a Zigbee network and wants to add a switchable, metered outlet to it. It pairs to a coordinator such as a SONOFF ZBBridge, a SONOFF Zigbee dongle or the built-in Zigbee hub of an Amazon Echo Plus, Echo 4th gen or Echo Show 2nd gen, and it also works through Home Assistant with Zigbee2MQTT or ZHA. Because it always needs that coordinator, it suits buyers who have bought into Zigbee rather than someone looking for a plug that connects straight to the router over Wi-Fi. Its second job, repeating Zigbee signal for up to 64 end devices, makes it a good fit for a network that needs more coverage.
What stands out on paper
Three things carry this model. First, Zigbee 3.0 control with local control, and a role as a Zigbee router that repeats signal to extend coverage. Second, the metering: it reports live voltage, current, power and consumption, keeps 180 days of history by hour, day and month, and exports the data, so it answers not just whether an appliance is on but what it draws. Third, the protection: the plug shuts the load off when a configured current, voltage or power threshold is exceeded, and it can be restored remotely or by hand, with a physical button for local on and off and a two-year warranty. Schedules, timers, loop timers, inching and scenes triggered by load power or consumption are built in.
What to know before you buy
The plug has no Wi-Fi or Bluetooth radio of its own, so it does nothing until it is paired to a Zigbee coordinator, and it is a Type B device for 100 to 125V North American outlets. It reaches Apple Home and Matter only indirectly, through a SONOFF hub such as the Bridge-M, ZBBridge-U or iHost, or the eWeLink CUBE software bridge with a SONOFF Zigbee dongle. It is rated for 15A and 1875W, there is no USB charging port, and it has no weather rating, so it is for indoor use.
Is the Sonoff iPlug Gen2 S61s Zigbee worth it?
The spec sheet is unusually complete for a plug: local Zigbee control, a 15A and 1875W rating, full energy metering with history and export, user-set safety thresholds, a Zigbee router role and a two-year warranty. What you give up is autonomy and breadth of connection: no standalone Wi-Fi, no native Matter or Apple Home, and a North American outlet format. If you already run a Zigbee network, or you are building one around Home Assistant, that trade is small; if you want a plug that simply joins Wi-Fi with no hub, this is not that product.
Frequently asked questions
Does the Sonoff iPlug Gen2 S61s Zigbee need a hub?
Yes. It is a Zigbee 3.0 device with no Wi-Fi radio, so it pairs to a Zigbee coordinator such as a SONOFF ZBBridge, a SONOFF Zigbee dongle with Zigbee2MQTT or ZHA, or the built-in Zigbee hub of an Amazon Echo Plus, Echo 4th gen or Echo Show 2nd gen.
Does it measure energy use?
Yes. It reports live voltage, current, power and consumption, keeps 180 days of consumption history by hour, day and month, and supports exporting the usage data.
Which smart home platforms does it work with?
Home Assistant through Zigbee2MQTT or ZHA, Samsung SmartThings with an AeoTec Smart Home Hub, Alexa through account linking in the eWeLink app or an Echo with a built-in Zigbee hub, and Google Home through account linking too. Apple Home and Matter are reached only indirectly, through a SONOFF bridge.
Does it work as a Zigbee range extender?
Yes. While it is powered on and connected, it acts as a Zigbee router that repeats signal to other devices on the network, with support for up to 64 end devices.
How much power can it handle?
It is rated for 15A at 100 to 125V, which is a maximum load of 1875W.
Can it turn off automatically if something goes wrong?
Yes. When a configured current, voltage or power threshold is exceeded the plug shuts the load off, and it can then be restored remotely or with the physical button.
