Updated September 2026
Data from Amazon and official Shelly site.
2026 verdict
Full size against mini, both Gen3: the Shelly 1 Mini Gen3 is the one to buy for lights and dry-contact jobs, as the smaller and lower priced of these two Wi-Fi smart relays.
Both offer dry and wet contact modes, run locally without a hub, support Matter and work with Alexa, Google Home, Apple Home, SmartThings and Home Assistant. The Shelly 1 Gen3 is the better reviewed of the two and the more capable one, though: it switches up to 16A against 8A, does not require a neutral wire where the Mini does, takes 12 V or 24 to 48 V DC with up to 10A, and works as a Bluetooth gateway. Pick the Shelly 1 Mini Gen3 for garage doors, sprinklers and light circuits in a tight box with a neutral, and the Shelly 1 Gen3 for heavier loads or boxes that have no neutral.
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| Feature | Shelly 1 Gen3 | Shelly 1 Mini Gen3 | Winner |
|---|---|---|---|
| Price | $22.99 | $17.99 | Shelly 1 Mini Gen3 |
| Rating | 4.6 | 4.5 | Shelly 1 Gen3 |
| Connectivity | Bluetooth | 2.4 GHz WiFi, Bluetooth | Shelly 1 Mini Gen3 |
| Safety | Overheating protection | Overheating protection | Tie |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Tie |
| Relay Channels | 1 | 1 | Tie |
| Energy Monitoring | NO | NO | Tie |
| Dry Contact Mode | YES | YES | Tie |
| Wet Contact Mode | YES | YES | Tie |
| Zibgee Router | NO | NO | Tie |
What the differences mean
Neutral wire
The Shelly 1 Gen3 does not require a neutral, which is why its owners use it in older boxes that only carry a line. The Shelly 1 Mini Gen3 needs both line and neutral, so check the box before choosing it.
Load rating
The Shelly 1 Gen3 switches up to 16A; the Shelly 1 Mini Gen3 up to 8A, or 2000 W resistive. Lights and door triggers fit either, while heavier appliances call for the full-size relay.
DC use
The Shelly 1 Gen3 accepts 12 V or 24 to 48 V DC and switches up to 10A on DC. The Shelly 1 Mini Gen3 handles up to 30 V and 5A, or 150 W, which suits low-voltage lighting but not bigger DC systems.
Size
The Shelly 1 Mini Gen3 measures 29 x 35 x 16 mm and weighs 19 g, against 37 x 42 x 16 mm and 26 g for the Shelly 1 Gen3. Owners of both mention tight fits in crowded boxes, but the Mini leaves more room.
Which one to buy if
- the switch box has no neutral wire
The Shelly 1 Gen3 does not need one; the Shelly 1 Mini Gen3 does.
- you are wiring a garage door or sprinkler trigger into a tight space
The Shelly 1 Mini Gen3 is smaller and lower priced, and its dry contacts do the same job.
- the load draws more than 8A
The Shelly 1 Gen3 is rated for 16A, twice the Mini.
- you want Bluetooth sensors relayed to Home Assistant
The Shelly 1 Gen3 works as a Bluetooth gateway, while the Mini uses Bluetooth for pairing.
- + Rating: 4.6
- - Price: $22.99 vs $17.99
- - Connectivity: Bluetooth vs 2.4 GHz WiFi, Bluetooth
Winner
- + Price: $17.99
- + Connectivity: 2.4 GHz WiFi, Bluetooth
- - Rating: 4.5 vs 4.6
What owners say
Owners of both Gen3 relays use them the same way, as do-anything dry-contact switches for garage doors, pumps, sprinklers and fireplaces, and both groups praise instant local control that never needs the cloud. Shelly 1 Gen3 owners single out solving no-neutral problems by wiring it into the ceiling box, on-device scripting and ESPHome flashing, and a low-power mode for battery projects; they complain about no energy monitoring, a tight fit in small boxes and complex DC installs that need real electrical skill. Shelly 1 Mini Gen3 owners talk about its tiny size, value and its own web interface, and their loudest complaint is a wiring diagram that misleads first-time installers into thinking the unit is faulty.
Upgrading from the Shelly 1 Mini Gen3?
Moving from the Shelly 1 Mini Gen3 to the full-size Shelly 1 Gen3 brings a 16A rating instead of 8A, no need for a neutral wire, stronger DC switching and a Bluetooth gateway role. The contacts, local control, Matter and integrations stay the same, and the relay gets bigger. If your Shelly 1 Mini Gen3 already switches a light or triggers a door on a box with a neutral, there is nothing to gain.
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 Gen3
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Frequently Asked Questions
Which is better overall: Shelly 1 Gen3 or Shelly 1 Mini Gen3?
For lights and dry-contact jobs, the Shelly 1 Mini Gen3, which is smaller and lower priced. The Shelly 1 Gen3 is the more capable relay, with a 16A rating, no neutral requirement and stronger DC switching, so it wins for heavy loads or boxes without a neutral.
What is the difference between the Shelly 1 Gen3 and the Shelly 1 Mini Gen3?
The Shelly 1 Gen3 is bigger, switches 16A, needs no neutral and handles up to 10A on DC. The Shelly 1 Mini Gen3 is smaller, switches 8A, requires a neutral and is limited to 30 V and 5A on DC.
Which is cheaper, the Shelly 1 Gen3 or the Shelly 1 Mini Gen3?
The Shelly 1 Mini Gen3 is the lower priced of the two. Check the live prices on this page, since both move over time.
Do the Shelly 1 Gen3 and the Shelly 1 Mini Gen3 work with Apple Home?
Yes, through Matter. The Shelly 1 Gen3 and the Shelly 1 Mini Gen3 both support Matter, which brings them into Apple Home, and the Mini gained it with firmware 1.6. Both also work with Alexa, Google Home, SmartThings and Home Assistant.
Who should buy the Shelly 1 Gen3?
DIYers switching loads above 8A, working in boxes with no neutral, or building DC projects that need up to 10A, who have room for the full-size relay.
Who should buy the Shelly 1 Mini Gen3?
Anyone automating lights, garage doors or sprinklers in a tight box that has a neutral, who wants the smallest and lower priced Gen3 relay.
Full comparison table
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