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Plugs · Head to head

Sonoff WiFi Smart Plug S40 Lite vs TP-Link Tapo P125M

Full Smart Plugs comparison in 2026

Updated October 2026
Data from Amazon and official Sonoff and TP-Link sites.
2026 verdict
TP-Link Tapo P125M wins the 2026 matchup against Sonoff WiFi Smart Plug S40 Lite, mainly on rating, warranty, and maximum load power.
TP-Link Tapo P125M
Winner
TP-Link Tapo P125M
$7.99$11.9933% OFFPrime exclusive deal

Last recorded price

Buy on Amazon USA
It wins the broader comparison through rating, warranty, and maximum load power, while its broader overall balance helps confirm the result. The only strong reason to choose Sonoff WiFi Smart Plug S40 Lite is if its specific feature mix is more important to you than the overall verdict. That keeps the verdict firmly in favor of TP-Link Tapo P125M.
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FeatureSonoff WiFi Smart Plug S40 LiteTP-Link Tapo P125MWinner
Rating4.24.5TP-Link Tapo P125M
Warranty1 year2 yearsTP-Link Tapo P125M
Maximum Load Power1500W1800WTP-Link Tapo P125M
Weather ResistanceNONOTie
Plug FormatType BType BTie
Energy MonitoringNONOTie
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, BluetoothTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
On/Off ButtonYESYESTie
Zigbee RouterNONOTie

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.

  • Sonoff WiFi Smart Plug S40 Lite
  • TP-Link Tapo P125M

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Frequently Asked Questions

Which is better overall: Sonoff WiFi Smart Plug S40 Lite or TP-Link Tapo P125M?

TP-Link Tapo P125M has the stronger overall profile in this comparison, especially for rating, warranty, and maximum load power.

What is the biggest difference between Sonoff WiFi Smart Plug S40 Lite and TP-Link Tapo P125M?

Rating is one of the clearest differences: Sonoff WiFi Smart Plug S40 Lite lists 4.2, while TP-Link Tapo P125M lists 4.5.

Who should buy Sonoff WiFi Smart Plug S40 Lite?

Choose Sonoff WiFi Smart Plug S40 Lite if your priority is its specific strengths and that matters more than rating.

Who should buy TP-Link Tapo P125M?

Choose TP-Link Tapo P125M if your priority is rating and warranty and that matters more than the competing advantages.

Full comparison table

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  • 37 Plugs
  • 31 specs compared
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