#1The Bench Test
Smart Home

SONOFF S31 Lite Smart Plug (2-Pack): A Budget-Friendly Way to Start Automating Your Home

price$38.99Reviewed 8/3/2026

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Scored

You don't need a $300 smart home hub to stop yelling "did anyone turn off the space heater?" across the house. At under $39 for two plugs, the SONOFF S31 Lite is a low-stakes way to find out whether smart home gadgets actually fit your routine—or whether they'll end up back in the junk drawer.

What It Is

The SONOFF S31 Lite is a Wi-Fi smart plug that sits between your wall outlet and whatever you want to control—lamps, space heaters, humidifiers, coffee makers, holiday lights. It connects to your home Wi-Fi and runs through SONOFF's eWeLink app, letting you turn things on and off remotely, set schedules, or use timers. This listing is a 2-pack, which makes it a practical way to cover two rooms—or two devices—at once instead of buying single units separately.

Who It's For

This plug is built for smart home beginners and budget-conscious buyers, not people chasing the most advanced platform integrations. It's a solid pick if you:

  • Want to try home automation without spending much upfront
  • Need a simple way to put lights or appliances on a schedule
  • Are outfitting a rental or small space where a full smart hub doesn't make sense
  • Like the idea of two matching plugs—say, both bedside lamps or a pair of fans

If you're already committed to a specific smart home ecosystem and need guaranteed native compatibility, check protocol support before buying. Not every SONOFF plug speaks every smart home language out of the box.

Key Features & Specs

  • Two-pack value: Two individually controllable smart plugs in one purchase, friendlier on a budget than buying single plugs twice
  • Wi-Fi connectivity: No separate hub required—just your home Wi-Fi and the eWeLink app
  • Remote control: Turn devices on or off from anywhere with a data or Wi-Fi connection
  • Scheduling and timers: Set devices on or off at specific times—handy for lighting schedules or seasonal decor
  • Compact form factor: Designed not to hog space around crowded outlets or power strips
  • Voice assistant compatibility: Typically works with common voice platforms, though it's worth confirming current compatibility with your setup before buying

Pros

  • Genuinely affordable, especially for two plugs instead of one
  • Simple setup aimed at non-technical users
  • Useful basic scheduling for everyday automation needs
  • Compact design that shouldn't crowd nearby outlets

Cons

  • Relies on the eWeLink app, which some users find less polished than bigger-name smart home apps
  • Wi-Fi-only plugs can occasionally drop connection depending on router placement and network congestion
  • Not the plug to choose if you need heavy-duty energy monitoring or advanced automation logic
  • As with most budget smart plugs, build quality and long-term app support are worth keeping an eye on over time
Verdict

The SONOFF S31 Lite 2-pack does exactly what a budget smart plug should: straightforward remote control and scheduling for everyday devices, with no steep learning curve and no real financial risk. It won't compete with premium plugs that offer energy monitoring or Matter/Thread support, and it's not meant to. For anyone testing the waters of home automation, or just wanting an easy way to schedule a lamp or fan, it's a sensible, low-risk starting point—buy it for that job, not for a smart home command center.

If this sounds like the practical starter smart plug your home could use, you can check current pricing and availability here: https://www.amazon.com/dp/B08GKK89QQ?tag=thebenchtest-20&tag=thebenchtest-20

Alternatives worth a look

Other reviewed picks in the same category, if this one isn't quite the fit.

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