Relays · Head to head

Shelly 1 Gen3 vs Shelly 1 Mini Gen4

Full Smart Relays comparison in 2026

Updated October 2026
Data from Amazon and official Shelly site.
2026 verdict
Smaller and with more radios, the Shelly 1 Mini Gen4 is the better buy of this Gen3 vs Gen4 pair for most light circuits.
Shelly 1 Mini Gen4
Winner
Shelly 1 Mini Gen4
$24.98

Last recorded price

Buy on Amazon USA
It adds Zigbee through a Zigbee hub to Wi-Fi, Bluetooth and Matter, acts as a Zigbee router, fits a 29 x 34 x 16 mm body and lists a 3-year warranty. The Shelly 1 Gen3 is the lower priced and better rated of the two, and it carries more load, 16A against 8A. Both switch resistive, inductive and capacitive loads, offer dry and wet contact modes, run on AC or DC and work with Alexa, Google Home, Apple Home, SmartThings and Home Assistant. Pick the Shelly 1 Mini Gen4 for a crowded box or a Zigbee home, and the Shelly 1 Gen3 for heavier loads.
Shelly 1 Gen3
Shelly
#6 Best Seller in Relays

Shelly 1 Gen3

Prime exclusive deal
$22.99

Last recorded price

Buy on Amazon USA

Also sold in packs

  • Pack of 2$42.98$21.49 per unitBuy
  • Pack of 4$85.96$21.49 per unitBuy
vs
Winner
Shelly 1 Mini Gen4
Shelly
#10 Best Seller in Relays

Shelly 1 Mini Gen4

Prime exclusive deal
$24.98
43% above its lowest price of the last 6 months ($17.49)

Last recorded price

Buy on Amazon USA

Also sold in packs

  • Pack of 2$48.99$24.50 per unitBuy
Deals by email

Relay prices change while you decide

We follow prices across the catalog and email you the best deals we find.

Smart home deals and news, straight to your inbox

Price drops, new releases and the smart home news worth knowing.

No spam. Unsubscribe in one click.

Your subscription could not be saved. Please try again.
Please enter a valid email address.
Tick the box above to finish signing up.
We couldn't verify you're human. Please try again.
Too many attempts. Please try again in an hour.
Your subscription has been successful.
FeatureShelly 1 Gen3Shelly 1 Mini Gen4Winner
Price$22.99$24.98Shelly 1 Gen3
Rating4.64.5Shelly 1 Gen3
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, Bluetooth, ZigbeeShelly 1 Mini Gen4
Zigbee RouterNOYESShelly 1 Mini Gen4
Warranty3 years3 yearsTie
SafetyOverheating protectionOverheating protectionTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Relay Channels11Tie
Energy MonitoringNONOTie
Dry Contact ModeYESYESTie
Wet Contact ModeYESYESTie

What the differences mean

Size

The Shelly 1 Mini Gen4 measures 29 x 34 x 16 mm and weighs 19 g, against 37 x 42 x 16 mm and 26 g for the Shelly 1 Gen3. Owners of the Gen3 mention needing box extenders; the Mini is the answer to that.

Load rating

The Shelly 1 Gen3 is rated 16A, the Shelly 1 Mini Gen4 8A. For lights both are plenty; a water heater, pump or large motor needs the Gen3.

Neutral wire

No difference here: both need line and neutral on 110-240V AC, and both can instead run from a 12V or 24-48V DC supply without one. A mains switch box with no neutral suits neither.

Zigbee

The Shelly 1 Mini Gen4 can run on Zigbee through a hub and routes for other devices. The Shelly 1 Gen3 has no Zigbee, so it only matters if your home uses it.

Which one to buy if

Shelly

Shelly 1 Gen3

Prime exclusive deal
$22.99

Last recorded price

Buy on Amazon USA
  • + Price: $22.99
  • + Rating: 4.6
  • - Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, Bluetooth, Zigbee
  • - Zigbee Router: NO vs YES
Winner
Shelly

Shelly 1 Mini Gen4

Prime exclusive deal
$24.98

Last recorded price

Buy on Amazon USA
  • + Connectivity: 2.4 GHz WiFi, Bluetooth, Zigbee
  • + Zigbee Router: YES
  • - Price: $24.98 vs $22.99
  • - Rating: 4.5 vs 4.6

What owners say

Owners of both Shelly relays praise local control that keeps automations running without the internet and dry contacts that handle garage doors, pumps and lighting jobs cheaply. Shelly 1 Mini Gen4 owners single out the size, fitting boxes where a standard relay will not, plus configuration through its own web page and immediate Home Assistant pickup, including Zigbee2MQTT; they mention tiny printed instructions, no UL or ETL listing and a few units that failed after months. Shelly 1 Gen3 owners wire it into the ceiling box when the switch has no neutral and lean on on-device scripting and ESPHome flashing, and their complaints are no energy monitoring, a tight fit that sometimes needs a box extender and no push notifications.

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 1 Gen3
  • Shelly 1 Mini Gen4

Loading price history...

Frequently Asked Questions

Which is better: Shelly 1 Gen3 or Shelly 1 Mini Gen4?

The Shelly 1 Mini Gen4 for most lighting jobs: it is smaller, adds Zigbee and routing and carries a 3-year warranty. The Shelly 1 Gen3 is better for 16A loads, and it costs less.

What is the difference between the Shelly 1 Gen3 and the Shelly 1 Mini Gen4?

The Shelly 1 Mini Gen4 is a smaller Gen4 relay rated 8A that adds Zigbee. The Shelly 1 Gen3 is a full-size Gen3 relay rated 16A, with no Zigbee. Both need a neutral on mains power.

Do the Shelly 1 Gen3 and the Shelly 1 Mini Gen4 support Matter and Apple Home?

Yes, both support Matter and Apple Home, along with Alexa, Google Home, SmartThings and Home Assistant.

Does either have energy monitoring?

No. Neither the Shelly 1 Gen3 nor the Shelly 1 Mini Gen4 meters power; Shelly's PM models do.

Who should buy the Shelly 1 Gen3?

DIYers switching heavier loads and tinkerers who want scripting or ESPHome at the lower price.

Who should buy the Shelly 1 Mini Gen4?

Anyone retrofitting lights in tight boxes, and Zigbee users who want small mains-powered routers behind their switches.

Full comparison table

Compare all 49 Relays side by side

You are looking at two of them. The full table lines up all Relays in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

  • 49 Relays
  • 53 specs compared
  • 50 filters
Open the full comparison
More Relays

Top Relays to compare next

49 smart relays and switch modules from 8 brands compared: Shelly, Sonoff, Aqara and more. Load ratings, dry contacts, protocols and local control.

All Relays
Shelly

More Shelly products

A sharper look at other Shelly products worth comparing.

Explore Shelly
Price alert

Get an email when the price drops

How much should it drop?

Cancel anytime from the email.

Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.
© 2026 Smart Home Compared
Search