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| Feature | Shelly 2PM Gen3 | Shelly PM Mini Gen3 | Winner |
|---|---|---|---|
| Rating | 4.7 | 4.6 | Shelly 2PM Gen3 |
| Safety | Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection | None | Shelly 2PM Gen3 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Samsung SmartThings, Home Assistant | Shelly 2PM Gen3 |
| Wet Contact Mode | YES | NO | Shelly 2PM Gen3 |
| Warranty | 3 years | 3 years | Tie |
| Connectivity | 2.4 GHz WiFi, Bluetooth | 2.4 GHz WiFi, Bluetooth | Tie |
| Energy Monitoring | YES | YES | Tie |
| Dry Contact Mode | NO | NO | Tie |
| Zigbee Router | NO | NO | Tie |
What the differences mean
Switch or meter
The Shelly 2PM Gen3 has two relay channels that pass the supply out to the load, and an interlock mode for a bi-directional motor such as a shutter or a gate. The Shelly PM Mini Gen3 is not a switching relay. Its channel count is not applicable, and the same is true of wet contact, dry contact and interlock. If you need the circuit to turn off, only the 2PM does it.
Safety cutoffs
Overheating, overcurrent, overpower and overvoltage protection are all on the Shelly 2PM Gen3 and all absent on the Shelly PM Mini Gen3. That matches the jobs. A device that switches 16 A has more reason to trip itself than a device that only measures. Energy monitoring is on both, per channel on the 2PM.
Matter and Apple Home
The Shelly 2PM Gen3 supports Matter, and Apple Home and SmartThings through that path, plus Alexa, Google Home and Home Assistant. The Shelly PM Mini Gen3 has no Matter and no Apple Home. Alexa, Google Home and Home Assistant are still yes, and SmartThings is through Shelly Cloud rather than Matter. Both are 2.4 GHz Wi-Fi and Bluetooth. Thread is no on both.
Size and the watt figure
The Shelly 2PM Gen3 is 37 x 42 x 16 mm and 30 g, idles at 1.4 W, and can also switch DC at 30 V and 10 A. Its resistive watt rating is not published. The Shelly PM Mini Gen3 is 29 x 34 x 16 mm and 13 g, idles at 1.2 W, lists 3840 W and 16 A, and does not run on DC. Both want a neutral and 110-240 V AC. Warranty is 3 years on both.
Which one to buy if
- a shutter, blind or two lights must switch
The Shelly 2PM Gen3 has two channels and an interlock for a motor. The Shelly PM Mini Gen3 does not switch.
- you only need to meter one spur
The Shelly PM Mini Gen3 measures power, voltage and current and is the smaller, more affordable device. It will not open the circuit.
- you need Apple Home to see the module
Apple Home and Matter are on the Shelly 2PM Gen3. The Shelly PM Mini Gen3 has neither.
- the module should trip on heat or overcurrent
Those protections, plus overpower and overvoltage, are on the Shelly 2PM Gen3 and not on the meter.
- + Rating: 4.7
- + Safety: Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Rating: 4.6 vs 4.7
- - Safety: None vs Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
What owners say
Owners bought these for opposite reasons and the reviews do not overlap much. Shelly 2PM Gen3 owners talk about blinds, shutters and garage doors behind an existing switch, Wi-Fi that stays up once it is joined, and energy figures per channel, and a minority describe a fussy first pairing and a body slightly thicker than the previous generation. Shelly PM Mini Gen3 owners talk about precise power, voltage and current on a washing machine, a dryer or a caravan spur, and Home Assistant seeing it immediately, and they warn that it will not switch anything and that the terminals suit a light spur better than a full ring.
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- Shelly 2PM Gen3
- Shelly PM Mini Gen3
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Frequently Asked Questions
Which is better overall: Shelly 2PM Gen3 or Shelly PM Mini Gen3?
The Shelly 2PM Gen3 if the relay has to switch a load. It has two channels, shutter interlock, four safety cutoffs, and Matter with Apple Home. The Shelly PM Mini Gen3 is the better buy only when you want a smaller meter and do not need switching.
What is the difference between the Shelly 2PM Gen3 and the Shelly PM Mini Gen3?
One switches, one measures. The Shelly 2PM Gen3 is a two-channel relay with energy monitoring. The Shelly PM Mini Gen3 monitors a circuit and does not turn it off. Both are 2.4 GHz Wi-Fi and Bluetooth, and both are rated around 16 A.
Do the Shelly 2PM Gen3 and the Shelly PM Mini Gen3 support Thread?
No. Thread is not on the Shelly 2PM Gen3 or the Shelly PM Mini Gen3. Both use 2.4 GHz Wi-Fi and Bluetooth. Matter is only on the Shelly 2PM Gen3.
Which Shelly works with Apple Home?
The Shelly 2PM Gen3, through Matter. The Shelly PM Mini Gen3 does not support Apple Home or Matter. Both support Alexa, Google Home and Home Assistant.
Who should buy the Shelly 2PM Gen3?
Anyone retrofitting two circuits or a shutter motor behind a switch, who wants per-channel energy data, safety cutoffs, and Matter so Apple Home can see it.
Who should buy the Shelly PM Mini Gen3?
Anyone who only wants to measure one lighter circuit, such as an appliance spur, and feed that into Home Assistant, without switching it or using Apple Home.
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