Relays · Head to head

Aqara Single Switch Module T1 (No Neutral) vs Shelly 1PM Gen4

Full Smart Relays comparison in 2026

Updated November 2026
Data from the official Aqara and Shelly sites.
2026 verdict
No neutral wire in the box is the one case for the Aqara Single Switch Module T1 (No Neutral); everywhere else the Shelly 1PM Gen4 is the better smart relay.
Shelly 1PM Gen4
Winner
Shelly 1PM Gen4
$28.99
Buy on Amazon USA
It switches 16A of resistive, inductive or capacitive loads, meters power, protects against overheating, overvoltage, overcurrent and overpower, offers dry and wet contacts, and carries Wi-Fi, Bluetooth, Zigbee and Matter with a three-year warranty and support for Alexa, Google Home, Apple Home, SmartThings and Home Assistant. Both speak Zigbee, but only the Shelly acts as a Zigbee router. The Aqara Single Switch Module T1 (No Neutral) installs where the Shelly cannot on mains, adds a physical button and power-off memory, and pairs straight with SmartThings, but it switches resistive loads only, up to 5A and 1250W, measures nothing and needs an Aqara hub for Alexa, Google Home, Apple Home and Matter. Choose the Aqara only for a box with no neutral, and the Shelly 1PM Gen4 for everything else.
Works with
Connectivity
vs
Winner
Shelly 1PM Gen4
Shelly
#6 Best Seller in Relays

Shelly 1PM Gen4

Prime exclusive deal
$28.99
Buy on Amazon USA

Also sold in packs

  • Pack of 2$55.99$28.00 per unitYou save $1.99Buy
  • Pack of 46% OFF£68.38£72.56£17.09 per unitBuy
Works with
Connectivity
News by email

Still comparing? Get what's new by email

New releases and the smart home news worth knowing, in your inbox.

Smart home news and new releases, straight to your inbox

New releases, comparisons 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.
FeatureAqara Single Switch Module T1 (No Neutral)Shelly 1PM Gen4Winner
Price$27.87$28.99Aqara Single Switch Module T1 (No Neutral)
Rating4.24.6Shelly 1PM Gen4
Warranty1 year3 yearsShelly 1PM Gen4
SafetyOverheating protectionOverheating protection, Overvoltage protection, Overcurrent protection, Overpower protectionShelly 1PM Gen4
ConnectivityZigbee2.4 GHz WiFi, Bluetooth, ZigbeeShelly 1PM Gen4
Energy MonitoringNOYESShelly 1PM Gen4
Dry Contact ModeNOYESShelly 1PM Gen4
Zigbee RouterNOYESShelly 1PM Gen4
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Relay Channels11Tie
Wet Contact ModeYESYESTie
Local ControlYESYESTie

What the differences mean

Neutral wire

The Aqara Single Switch Module T1 (No Neutral) fits a switch box with no neutral. On 110 to 240V AC the Shelly 1PM Gen4 is powered from live and neutral; only its DC supply options do without one.

Load and protection

The Shelly 1PM Gen4 switches 16A and handles LED drivers and transformers, with four electrical protections. The Aqara Single Switch Module T1 (No Neutral) is limited to 5A and 1250W on resistive loads and only protects against overheating.

Energy monitoring

The Shelly 1PM Gen4 measures power, voltage and total consumption; the Aqara Single Switch Module T1 (No Neutral) has no metering at all.

Zigbee role

Both can join a Zigbee network, but the Shelly 1PM Gen4 acts as a router that extends it, while the Aqara Single Switch Module T1 (No Neutral) does not. The Shelly can also run on Wi-Fi without any hub.

Which one to buy if

Winner
Shelly

Shelly 1PM Gen4

Prime exclusive deal
$28.99
Buy on Amazon USA
  • + Rating: 4.6
  • + Warranty: 3 years
  • + Safety: Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
  • - Price: $28.99 vs $27.87

What owners say

Shelly 1PM Gen4 owners are drawn by metering combined with flexibility: they watch how often a water heater runs, automate a dehumidifier with an RC snubber for stable readings, keep a wall tablet charged between set levels and power-cycle a furnace remotely. They choose it over the smaller Mini for its 16A rating, pick whichever of Wi-Fi, Bluetooth, Zigbee or Matter suits them, and call the Home Assistant integration immediate and stable, including Zigbee2MQTT. The complaints are about documentation: a wiring diagram described as unconventional and hard to read, tiny printed instructions, a fiddly first setup and a radio switch that needs firm, precise button presses.

Frequently Asked Questions

Shelly vs Aqara: which relay is better, the Shelly 1PM Gen4 or the Aqara Single Switch Module T1 (No Neutral)?

The Shelly 1PM Gen4, wherever a neutral is available: 16A, power metering, full electrical protection, dry contacts, no hub required and a three-year warranty. The Aqara Single Switch Module T1 (No Neutral) is the answer only for boxes without a neutral wire.

Does the Shelly 1PM Gen4 work without a neutral wire?

Not on mains. The Shelly 1PM Gen4 is powered from live and neutral on 110 to 240V AC, and it can also run from a 12V or 24 to 48V DC supply. For a mains box with no neutral, the Aqara Single Switch Module T1 (No Neutral) is designed for it.

What is the biggest difference between the Aqara Single Switch Module T1 (No Neutral) and the Shelly 1PM Gen4?

Wiring against capability. The Aqara Single Switch Module T1 (No Neutral) needs no neutral but switches only small resistive loads through a Zigbee hub, while the Shelly 1PM Gen4 needs a neutral and gives you 16A, metering and four radios.

Do both work with Zigbee?

Yes. The Aqara Single Switch Module T1 (No Neutral) is a Zigbee device, and the Shelly 1PM Gen4 can run in Zigbee mode, where it also acts as a Zigbee router.

Who should buy the Aqara Single Switch Module T1 (No Neutral)?

Aqara or Zigbee hub owners with no neutral in the switch box who only need to switch lighting.

Who should buy the Shelly 1PM Gen4?

Anyone with a neutral wire who wants a metered, protected relay for heaters, boilers, pumps or lights, on Wi-Fi, Zigbee or Matter.

Spotted something wrong on this page? Tell us and we will fix it.

AmazonOur store on AmazonShop our ideas on AmazonLists of the smart home setups we would put together ourselves, ready to add to your Amazon cart.Shop on Amazon
Full comparison table

Compare all 50 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.

  • 50 Relays
  • 56 specs compared
  • 52 filters
Open the full comparison
More Relays

Top Relays to compare next

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

All Relays
Aqara

More Aqara products

A sharper look at other Aqara products worth comparing.

Explore Aqara
Shelly

More Shelly products

A sharper look at other Shelly products worth comparing.

Explore Shelly
Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.

As an Amazon Associate I earn from qualifying purchases.

CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED ‘AS IS’ AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

© 2026 Smart Home Compared
Search