AliExpress alternative to the Shelly 2PM Smart Switch
The closest AliExpress match to the Shelly 2PM Smart Switch is listed at $97. Buy if the spec match works for you; compare the rest below.
Where they differ: Candidate is Shelly Pro 2PM (Pro tier, DIN-rail mounted, adds LAN/Ethernet port) vs. original… · +2 more
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Shelly Pro 2PM Wifi Relay Precise Power Metering Overheating Protection Suitable
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Shelly Pro 2PM Wifi Relay Precise Power Metering Overheating Protection Suitable
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Shelly Pro 2PM Wifi Relay Precise Power Metering Overheating Protection Suitable Roller Sh
$97.49
Shelly 2PM Gen3 – 2-Channel Smart Relay Switch with Power Meter
$39.29
Shelly Pro 2PM Wifi Relay Precise Power Metering Overheating Protection Suitable Roller Sh
Candidate is Shelly Pro 2PM (Pro tier, DIN-rail mounted, adds LAN/Ethernet port) vs. original Shelly 2PM (non-Pro, compact in-wall form factor, Wi-Fi only)
$97.49
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Buy on AliExpress — $97.49Shelly 2PM Gen3 – 2-Channel Smart Relay Switch with Power Meter
Candidate is Shelly 2PM Gen3 — a newer generation than the original Shelly 2PM (Gen1/Gen2); Gen3 adds Bluetooth alongside Wi-Fi and has updated firmware/hardware
$39.29
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Buy on AliExpress — $39.29Where they actually differ
- Candidate is Shelly Pro 2PM (Pro tier, DIN-rail mounted, adds LAN/Ethernet port) vs. original Shelly 2PM (non-Pro, compact in-wall form factor, Wi-Fi only)
- Shelly Pro 2PM is a higher-end, more expensive product (~$50–60 more) with a fundamentally different physical form factor (DIN rail vs. in-wall)
- Pro model adds Ethernet/LAN connectivity and Bluetooth not present on base Shelly 2PM
FAQ
Is the AliExpress Shelly 2PM Gen3 really the same product as the one in the GreatScott! review?
Not exactly, the GreatScott! video features the Shelly 2PM (Gen1/Gen2), while this AliExpress listing is the Gen3. Gen3 is the same product family from the same manufacturer but adds Bluetooth and KNXnet/IP support. The core dual-channel 16 A relay function is identical; the difference is additional radio and protocol capability in Gen3, not a downgrade.
Does the Shelly 2PM Gen3 work with HomeKit, Alexa, and Google Home?
The listing confirms Alexa and Google Home compatibility. Apple HomeKit is not listed as a native integration for the Shelly 2PM Gen3; Shelly devices can be bridged to HomeKit via third-party software (e.g., Homebridge) but this requires additional setup. If HomeKit is your primary ecosystem, verify current firmware support before purchasing.
What does KNXnet/IP compatibility mean in practice for the Gen3?
KNXnet/IP lets the Shelly 2PM Gen3 communicate with KNX building-automation systems over your IP network, without a separate KNX gateway. This is the exact hybrid use case covered in the GreatScott! video, replacing traditional KNX switches with a relay that still speaks the KNX protocol. If your installation has no KNX infrastructure, this feature has no practical effect.
Is the Bluetooth on the Gen3 necessary, or is Wi-Fi enough for most installations?
For the majority of smart-home relay installations, Wi-Fi alone is sufficient. Bluetooth on the Gen3 is primarily used for initial device provisioning and direct local control when Wi-Fi is unavailable. It can also reduce dependency on a router during first-time setup. If your home already has reliable 2.4 GHz Wi-Fi coverage at the install location, Bluetooth adds convenience but is not essential.
Does the Shelly app work in all countries, and is there a subscription fee?
The Shelly app (iOS and Android) is available globally and functions without a mandatory subscription. Local control over Wi-Fi does not require a cloud connection once the device is set up. Shelly's cloud services are free; advanced automations and remote access are included at no additional charge as of current firmware, though this is subject to change by the manufacturer.
Can the Shelly 2PM Gen3 control roller shutters or blinds, and what wiring is required?
Yes, the 2PM's two-channel output is specifically designed for roller shutter and blind motor control, with built-in safety logic to prevent both channels from activating simultaneously. Wiring requires a neutral line; installations without a neutral wire (switched-live only) are not supported. The device is rated for 16 A per channel, compatible with most residential motor loads.
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