5 Cheapest Smart Plugs working with Alexa for UK Homes in 2025 (Budget Picks)

5 Cheapest Smart Plugs working with Alexa for UK Homes in 2025 (Budget Picks)

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Published: 17 May 2025

Alexa-Compatible Smart Plugs on a Budget

Smart plugs are an easy and affordable way to control your appliances with voice commands, schedules, or smartphone apps. If you’re building an Alexa-powered smart home, you don’t need to spend a lot to get started. Many low-cost smart plugs now support Amazon Alexa and provide features like energy monitoring, scheduling, and remote access.

This guide features 5 of the cheapest smart plugs compatible with Alexa in 2025, all tested for performance and value. Whether you want to control lights, heaters, or kitchen appliances, these picks help you automate your home without stretching your budget.

How Smart Plugs Help You Save Energy and Time

  • 🔌 Voice control: Turn devices on/off hands-free via Alexa-enabled speakers.
  • 📅 Schedules: Automate appliances to run only when needed.
  • 📱 Remote access: Control plugs from anywhere using your phone.
  • Energy monitoring: Track power usage on select models to lower bills.
  • 🛏️ Scenes & routines: Set up “Goodnight” or “Away” modes easily in the Alexa app.

Even one or two plugs can make a big difference in how you manage power, improve safety, and reduce unnecessary energy usage.

What to Look for in Budget Smart Plugs

  • 🎙️ Alexa certification: Ensure it supports direct Alexa integration — no hub needed.
  • 📶 Wi-Fi connection: Most affordable options use 2.4GHz Wi-Fi.
  • 📊 Energy monitoring: Optional but useful for tracking electricity costs.
  • 📦 Compact size: A smaller plug won’t block other outlets.
  • 🔌 Device capacity: Make sure the plug can handle the wattage of your appliances.

WiZ Smart Plug – Simple and Reliable Read Full Review

The WiZ Smart Plug is one of the most affordable and user-friendly Alexa-compatible plugs. It works over 2.4GHz Wi-Fi, supports schedules, timers, and voice control, and fits nicely into any socket without blocking others. Great for beginners and renters looking to automate their lights or appliances.

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Sengled Smart Plug – With Energy Monitoring Read Full Review

This budget plug by Sengled not only supports Alexa voice control but also features built-in energy monitoring. You can track usage from the app and set up routines or schedules to reduce waste. Ideal for those who want to automate smartly and track their savings in real time.

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Amazon Basics Smart Plug – Alexa Optimised Read Full Review

Built by Amazon for Alexa users, this smart plug requires no additional app — it pairs instantly with your Alexa account. Just plug it in and manage devices via voice or the Alexa app. It doesn’t offer energy monitoring but delivers unbeatable ease of use for Echo households.

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Knightsbridge Smart WiFi Plug – Compact and Powerful Read Full Review

This compact plug offers robust energy monitoring and full Alexa voice support. It fits neatly in standard UK outlets and includes power tracking and scheduling through the SmartKnight app. A top choice for users who want both smart control and insights into electricity usage.

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Tapo P110 Smart Plug – Best All-Round Budget Pick Read Full Review

The Tapo P110 offers unbeatable value. With full Alexa and Google compatibility, energy usage reports, timers, scheduling, and an excellent app experience, it’s everything a smart plug should be. Compact, powerful, and inexpensive — a best-seller for a reason.

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Smart Automation That Fits Your Budget

These budget-friendly Alexa-compatible smart plugs prove you don’t need to spend big to start your smart home journey. With reliable scheduling, voice control, and energy insights, they bring convenience and efficiency to everyday living in 2025.

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