Winner
Updated October 2026
Data from the official Third Reality and TP-Link sites.
2026 verdict
Across the 2026 comparison, Third Reality Smart Plug E3 earns the nod over TP-Link Kasa EP40 on the strength of price, maximum load power, and energy monitoring.
The comparison tilts its way because of price, maximum load power, and energy monitoring, with integrations and zigbee router keeping it in front. The only strong reason to choose TP-Link Kasa EP40 is if rating, warranty, and weather resistance are more important to you than the overall verdict. That is why the final call still favors Third Reality Smart Plug E3.
Connectivity
vs
8% OFF
$22.99
$24.99
Connectivity
- Wi-Fi 2.4 GHz
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The biggest differences
Where these two are furthest apart, and by how much.
- Warranty2×TP-Link Kasa EP402 years vs 1 year
- Maximum Load Power+96%Third Reality Smart Plug E33680W vs 1875W
| Feature | Third Reality Smart Plug E3 | TP-Link Kasa EP40 | Winner |
|---|---|---|---|
| Price | €14.99 | $22.99 | Third Reality Smart Plug E3 |
| Rating | 4.2 | 4.6 | TP-Link Kasa EP40 |
| Warranty | 1 year | 2 years | TP-Link Kasa EP40 |
| Weather Resistance | NO | IP64 | TP-Link Kasa EP40 |
| Maximum Load Power | 3680W | 1875W | Third Reality Smart Plug E3 |
| Energy Monitoring | YES | NO | Third Reality Smart Plug E3 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Samsung SmartThings, Home Assistant | Third Reality Smart Plug E3 |
| Zigbee Router | YES | NO | Third Reality Smart Plug E3 |
| Plug Format | Type F | Type B | Different strengths |
| Connectivity | Zigbee | 2.4 GHz WiFi | Tie |
| On/Off Button | YES | YES | Tie |
| Local Control | YES | YES | Tie |
Winner
€14.99
- + Price: €14.99
- + Maximum Load Power: 3680W
- + Energy Monitoring: YES
- - Rating: 4.2 vs 4.6
- - Warranty: 1 year vs 2 years
8% OFF
$22.99
$24.99
- + Rating: 4.6
- + Warranty: 2 years
- + Weather Resistance: IP64
- - Price: $22.99 vs €14.99
- - Maximum Load Power: 1875W vs 3680W
Frequently Asked Questions
Which is better overall: Third Reality Smart Plug E3 or TP-Link Kasa EP40?
Third Reality Smart Plug E3 has the stronger overall profile in this comparison, especially for price, maximum load power, and energy monitoring.
What is the biggest difference between Third Reality Smart Plug E3 and TP-Link Kasa EP40?
Price is one of the clearest differences: Third Reality Smart Plug E3 lists €14.99, while TP-Link Kasa EP40 lists $22.99.
Which one looks better on price?
Third Reality Smart Plug E3 is listed at €14.99, while TP-Link Kasa EP40 is listed at $22.99. Third Reality Smart Plug E3 (better spec).
Who should buy Third Reality Smart Plug E3?
Choose Third Reality Smart Plug E3 if your priority is price and maximum load power and that matters more than rating.
Who should buy TP-Link Kasa EP40?
Choose TP-Link Kasa EP40 if your priority is rating and warranty and that matters more than price.
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