Updated December 2025
Data from Amazon and official Fibaro and Sonoff sites.
2026 verdict
In 2026, Sonoff Wifi Smart Plug S40 Lite is the better overall pick. It has the clearer edge on price, rating, and connectivity, and it stays ahead on integrations. Fibaro Wall Plug with USB (US) is still relevant if you care most about maximum load power, overheat/overload protection, and energy monitoring, but Sonoff Wifi Smart Plug S40 Lite is the stronger recommendation overall. In practical terms, Sonoff Wifi Smart Plug S40 Lite is the easier product to recommend.
| Feature | Fibaro Wall Plug with USB (US) | Sonoff Wifi Smart Plug S40 Lite | Winner |
|---|---|---|---|
| Price | $51.28 | $11.99 | Sonoff Wifi Smart Plug S40 Lite |
| Rating | 3.9 | 4.2 | Sonoff Wifi Smart Plug S40 Lite |
| Maximum Load Power | 1800W | 1500W | Fibaro Wall Plug with USB (US) |
| Overheat/Overload Protection | YES | NO | Fibaro Wall Plug with USB (US) |
| Energy Monitoring | YES | NO | Fibaro Wall Plug with USB (US) |
| Connectivity | Z-Wave | 2.4 GHz Wifi, Bluetooth | Sonoff Wifi Smart Plug S40 Lite |
| Integrations | Alexa, Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT | Sonoff Wifi Smart Plug S40 Lite |
| Warranty | 1 year | 1 year | Tie |
| Weather Resistance | NO | NO | Tie |
| Plug Format | Type B | Type B | Tie |
| On/Off Button | YES | YES | Tie |
| Zibgee Router | NO | NO | Tie |
$51.28
- + Maximum Load Power: 1800W
- + Overheat/Overload Protection: YES
- + Energy Monitoring: YES
- - Price: $51.28 vs $11.99
- - Rating: 3.9 vs 4.2
Winner
$11.99
- + Price: $11.99
- + Rating: 4.2
- + Connectivity: 2.4 GHz Wifi, Bluetooth
- - Maximum Load Power: 1500W vs 1800W
- - Overheat/Overload Protection: NO vs YES
Frequently Asked Questions (FAQ)
- Which is better overall: Fibaro Wall Plug with USB (US) or Sonoff Wifi Smart Plug S40 Lite?
- Sonoff Wifi Smart Plug S40 Lite has the stronger overall profile in this comparison, especially for price, rating, and connectivity.
- What is the biggest difference between Fibaro Wall Plug with USB (US) and Sonoff Wifi Smart Plug S40 Lite?
- Price is one of the clearest differences: Fibaro Wall Plug with USB (US) lists $51.28, while Sonoff Wifi Smart Plug S40 Lite lists $11.99.
- Which one looks better on price?
- Fibaro Wall Plug with USB (US) is listed at $51.28, while Sonoff Wifi Smart Plug S40 Lite is listed at $11.99. Sonoff Wifi Smart Plug S40 Lite (better spec).
- Who should buy Fibaro Wall Plug with USB (US)?
- Choose Fibaro Wall Plug with USB (US) if your priority is maximum load power and overheat/overload protection and that matters more than price.
- Who should buy Sonoff Wifi Smart Plug S40 Lite?
- Choose Sonoff Wifi Smart Plug S40 Lite if your priority is price and rating and that matters more than maximum load power.
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