Shelly 1 Mini Gen4 vs Shelly 2PM Gen4 comparison

Updated July 2026

Data from Amazon and official Shelly site.

2026 verdict

Tiny single-circuit relay or dual-channel workhorse? The Shelly 2PM Gen4 wins this comparison, controlling two independent circuits from one module instead of one, rating marginally higher, adding energy monitoring the Shelly 1 Mini Gen4 does not have, and carrying a far fuller safety set with overvoltage, overcurrent and overpower protection on top of the overheating protection both share. For a wall box that drives two loads, or anywhere you want to see consumption, it does more per module. The Shelly 1 Mini Gen4 keeps two clear advantages: it costs considerably less, and it is the only one of the two with confirmed dry-contact and wet-contact modes, which is what you need for pulse triggers, gate controllers and low-voltage wiring. It is also small enough for the most cramped backbox. Choose the Shelly 1 Mini Gen4 for a single circuit, tight space or dry-contact wiring, and the Shelly 2PM Gen4 for two channels, metering and the fuller protection set.

Feature	Shelly 1 Mini Gen4	Shelly 2PM Gen4	Winner
Price	$24.98	$38.99	Shelly 1 Mini Gen4
Rating	4.5	4.6	Shelly 2PM Gen4
Safety	Overheating protection	Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection	Shelly 2PM Gen4
Relay Channels	1	2	Shelly 2PM Gen4
Energy Monitoring	NO	YES	Shelly 2PM Gen4
Dry Contact Mode	YES	NO	Shelly 1 Mini Gen4
Wet Contact Mode	YES	NO	Shelly 1 Mini Gen4
Warranty	3 years	3 years	Tie
Connectivity	Bluetooth, Zigbee	Bluetooth, Zigbee	Tie
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Tie
Power Off Memory	NO	NO	Tie
Zibgee Router	YES	YES	Tie

Shelly

Shelly 1 Mini Gen4

$24.98

Buy on Amazon USA

+ Price: $24.98
+ Dry Contact Mode: YES
+ Wet Contact Mode: YES
- Rating: 4.5 vs 4.6
- Safety: Overheating protection vs Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection

Winner

Shelly

Shelly 2PM Gen4

$38.99

Buy on Amazon USA

+ Rating: 4.6
+ Safety: Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
+ Relay Channels: 2
- Price: $38.99 vs $24.98
- Dry Contact Mode: NO vs YES

Frequently Asked Questions

Which is better overall: Shelly 1 Mini Gen4 or Shelly 2PM Gen4?

The Shelly 2PM Gen4, which controls two circuits, adds energy monitoring and includes overvoltage, overcurrent and overpower protection, with a slightly better rating. The Shelly 1 Mini Gen4 costs much less and is the only one with dry-contact and wet-contact modes.

What is the biggest difference between the two?

Channel count. The Shelly 2PM Gen4 switches two independent loads from one module, while the Shelly 1 Mini Gen4 handles one. That decides most installations before anything else.

Which one measures energy use?

The Shelly 2PM Gen4, which reports consumption per channel. The Shelly 1 Mini Gen4 switches without metering.

What are dry-contact and wet-contact modes, and which has them?

They describe how the output is wired: dry contact gives a voltage-free switch for low-voltage gear or pulse triggers, wet contact passes mains through. Only the Shelly 1 Mini Gen4 lists both.

Which one has better electrical protection?

The Shelly 2PM Gen4, which adds overvoltage, overcurrent and overpower protection to the overheating protection both offer, so it fails safe under more fault conditions.

Who should buy the Shelly 1 Mini Gen4?

Anyone automating a single circuit in a cramped backbox for the lowest cost, or who needs dry-contact wiring for a gate, a boiler or low-voltage equipment.

Who should buy the Shelly 2PM Gen4?

Anyone with two loads in one box, such as a light and a fan, who also wants per-channel energy monitoring and the fuller set of electrical protections.

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