Shelly Europe

Shelly Outdoor Plug S Gen3 vs Shelly Plus Plug S: Which Outdoor Smart Plug Suits Your Needs?

Shelly Outdoor Plug S Gen3 vs Shelly Plus Plug S: Which Outdoor Smart Plug Suits Your Needs?

By Shelly Europe | Published: 2026-07-27

Category: Comparisons

Compare Shelly Outdoor Plug S Gen3 and Shelly Plus Plug S: waterproof ratings, power specs, smart features, and use cases to choose the best outdoor smart plug.

When it comes to controlling outdoor devices like garden lights, fountains, or holiday decorations, a reliable smart plug is essential. Shelly offers two excellent options: the Shelly Outdoor Plug S Gen3 and the Shelly Plus Plug S. Both are Wi-Fi-enabled and support voice control, but they differ in design, weather resistance, and power handling. This comparison will help you decide which one fits your outdoor smart home setup.

Shelly Outdoor Plug S Gen3
Shelly Outdoor Plug S Gen3

We'll break down their key features, including IP ratings, maximum load, and smart capabilities, so you can make an informed choice. Whether you need a dedicated outdoor plug or a versatile indoor/outdoor solution, read on to find the perfect match.

Design and Weather Resistance

The Shelly Outdoor Plug S Gen3 is specifically engineered for outdoor use with an IP44 rating, meaning it is protected against solid objects larger than 1mm and splashing water from any direction. Its rugged casing and integrated cable gland ensure a tight seal, making it ideal for gardens, patios, or driveways. The plug also features a built-in socket cover to shield the outlet when not in use.

In contrast, the Shelly Plus Plug S is designed primarily for indoor use, with no official IP rating. While it can be used in sheltered outdoor locations (e.g., under a porch or inside a weatherproof enclosure), it is not rated for direct exposure to rain or moisture. Its compact, minimalist design fits standard indoor sockets but lacks the robust sealing of the Outdoor Plug S Gen3.

  • Tip: For permanent outdoor installations, choose the Outdoor Plug S Gen3. For occasional outdoor use under cover, the Plus Plug S may suffice but requires additional protection.

Power and Electrical Specifications

Both plugs support a maximum load of 16A (3680W at 230V), making them suitable for most outdoor appliances like lawn mowers, pumps, and string lights. However, the Outdoor Plug S Gen3 features enhanced surge protection and a wider operating temperature range (-20°C to 40°C) compared to the Plus Plug S (0°C to 35°C). This makes the Gen3 more reliable in extreme weather conditions.

Energy monitoring is available on both models, allowing you to track power consumption in real time via the Shelly Smart Control app. This feature is particularly useful for optimizing energy usage of outdoor devices. The Outdoor Plug S Gen3 also includes a built-in over-temperature protection circuit that automatically cuts power if overheating is detected.

Smart Features and Compatibility

Both plugs are Wi-Fi (2.4 GHz) enabled and work with the Shelly Smart Control app, Amazon Alexa, Google Home, and Apple Home (via Homebridge). They support scheduling, timers, and scene automation. The Outdoor Plug S Gen3 adds a physical button on the device for manual override, which is handy when you need to toggle power without using the app.

The Shelly Plus Plug S, while lacking a physical button, offers a slightly smaller footprint and can be used in multi-socket adapters (though not recommended for high loads). Both plugs support over-the-air firmware updates and are compatible with the Shelly ecosystem, allowing integration with other Shelly devices like sensors and relays. For example, you can pair them with a Shelly Temp. Sensor DS18B20 1m cable to trigger outdoor lights based on temperature.

Shelly Temp. Sensor DS18B20 1m cable
Shelly Temp. Sensor DS18B20 1m cable
  • The Outdoor Plug S Gen3 also supports Bluetooth for proximity-based control (via the Shelly BLU gateway).

Installation and Use Cases

Installing the Outdoor Plug S Gen3 is straightforward: plug it into an outdoor weatherproof socket, and it's ready. The integrated cable clamp secures the connected device's cable, preventing accidental disconnection. Ideal use cases include permanent garden lighting, water features, and electric gates. Its robust design makes it a set-and-forget solution.

The Shelly Plus Plug S is best suited for indoor or sheltered outdoor use, such as controlling a holiday light display under a covered patio or powering a security camera in a garage. Its compact size allows it to fit in tight spaces. For a cleaner installation, consider pairing it with a Shelly Wall Switch List for manual control from inside your home.

Price and Value

The Shelly Outdoor Plug S Gen3 is priced higher due to its ruggedized construction and additional safety features. It offers excellent value for users who need a dedicated outdoor smart plug that can withstand the elements year-round. The Shelly Plus Plug S is more budget-friendly and provides similar smart features, but requires extra care if used outdoors.

Consider your specific needs: if you plan to control outdoor devices in exposed locations, the investment in the Outdoor Plug S Gen3 is worthwhile. For occasional or sheltered use, the Plus Plug S can save money without sacrificing functionality. Both are backed by Shelly's reliable firmware and support.

Choosing between the Shelly Outdoor Plug S Gen3 and Shelly Plus Plug S ultimately depends on your installation environment and budget. For permanent outdoor setups with exposure to rain and temperature extremes, the Outdoor Plug S Gen3 is the clear winner. For indoor or sheltered outdoor use, the Plus Plug S offers a cost-effective alternative. Explore the Shelly 1 Gen3 x4 to expand your smart home automation further.

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