Shelly 1 Mini Gen3 vs Shelly 1PM Gen4 comparison

Updated July 2026

Data from Amazon and official Shelly site.

2026 verdict

The Shelly 1PM Gen4 wins this smart relay comparison, carrying the higher owner rating and adding capabilities the older Mini lacks: built-in energy monitoring, a Zigbee router role and broader integrations including Apple HomeKit. It also rates 16A against the Mini's 8A and installs without a neutral wire. The Shelly 1 Mini Gen3 remains the more affordable pick and a proven, ultra-compact Wi-Fi relay with dry and wet contacts, ideal for garage doors, sprinklers and low-power DIY jobs where price and size matter more than metering. Both offer local control and Matter. Choose the 1PM Gen4 if you want power metering, a higher load rating, Zigbee routing and HomeKit; keep the Mini Gen3 for the cheapest, smallest single-load automation over Wi-Fi.

Feature	Shelly 1 Mini Gen3	Shelly 1PM Gen4	Winner
Price	$17.99	$28.99	Shelly 1 Mini Gen3
Rating	4.5	4.6	Shelly 1PM Gen4
Safety	Overheating protection	None	Shelly 1 Mini Gen3
Integrations	Google Home, Alexa, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Shelly 1PM Gen4
Energy Monitoring	NO	YES	Shelly 1PM Gen4
Zibgee Router	NO	YES	Shelly 1PM Gen4
Connectivity	2.4 GHz WiFi, Bluetooth	Bluetooth, Zigbee	Tie
Relay Channels	1	1	Tie
Power Off Memory	NO	NO	Tie
Dry Contact Mode	YES	YES	Tie
Wet Contact Mode	YES	YES	Tie

Shelly

Shelly 1 Mini Gen3

$17.99

Buy on Amazon USA

+ Price: $17.99
+ Safety: Overheating protection
- Rating: 4.5 vs 4.6
- Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant, Matter vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Winner

Shelly

Shelly 1PM Gen4

$28.99

Buy on Amazon USA

+ Rating: 4.6
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
+ Energy Monitoring: YES
- Price: $28.99 vs $17.99
- Safety: None vs Overheating protection

Frequently Asked Questions

Which is the better relay, the Shelly 1 Mini Gen3 or the Shelly 1PM Gen4?

The Shelly 1PM Gen4 is better overall. It adds energy monitoring, a Zigbee router role, Apple HomeKit support and a 16A rating, and carries a higher owner rating. The Shelly 1 Mini Gen3 wins mainly on price and its smaller size.

What is the biggest difference between these two relays?

Metering and load. The Shelly 1PM Gen4 measures power, voltage and consumption and rates 16A, while the Shelly 1 Mini Gen3 has no energy monitoring and rates 8A. The 1PM Gen4 also adds Zigbee routing and HomeKit that the Wi-Fi-focused Gen3 lacks.

Does either one avoid needing a neutral wire?

The Shelly 1PM Gen4 installs without a neutral wire, which helps in older boxes. The Shelly 1 Mini Gen3 requires a neutral, so check your wiring first. Both otherwise offer dry and wet contact modes and full local control.

Who should buy the Shelly 1 Mini Gen3?

Buy the Shelly 1 Mini Gen3 if you want the cheapest, tiniest relay for a single light load, garage door or sprinkler over Wi-Fi, and you do not need energy monitoring, HomeKit or Zigbee. It is a great-value building block.

Who should buy the Shelly 1PM Gen4?

Buy the Shelly 1PM Gen4 if you want to measure a circuit's energy use, switch heavier 16A loads, avoid a neutral wire, or use Zigbee and Apple HomeKit. It is the more capable, future-proof module of the two.

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