Updated September 2026
Data from Amazon and official Shelly and TP-Link sites.
2026 verdict
Between TP-Link Kasa EP40 and Shelly Smart Plug UL, TP-Link Kasa EP40 is the better overall pick in 2026, leading on price, rating, and weather resistance.
It builds its lead on price, rating, and weather resistance, then backs it up with a stronger showing on maximum load power. The only strong reason to choose Shelly Smart Plug UL is if energy monitoring, connectivity, and integrations are more important to you than the overall verdict. For the average buyer, TP-Link Kasa EP40 is the safer choice.
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| Feature | Shelly Smart Plug UL | TP-Link Kasa EP40 | Winner |
|---|---|---|---|
| Price | $24.99 | $17.28 | TP-Link Kasa EP40 |
| Rating | 4.1 | 4.6 | TP-Link Kasa EP40 |
| Weather Resistance | NO | IP64 | TP-Link Kasa EP40 |
| Maximum Load Power | 1800W | 1875W | TP-Link Kasa EP40 |
| Energy Monitoring | YES | NO | Shelly Smart Plug UL |
| Connectivity | 2.4 GHz WiFi, Bluetooth, Zigbee | 2.4 GHz WiFi | Shelly Smart Plug UL |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Samsung SmartThings, Home Assistant | Shelly Smart Plug UL |
| Plug Format | Type B | Type B | Tie |
| On/Off Button | YES | YES | Tie |
- + Energy Monitoring: YES
- + Connectivity: 2.4 GHz WiFi, Bluetooth, Zigbee
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Price: $24.99 vs $17.28
- - Rating: 4.1 vs 4.6
Winner
31% OFF
$17.28
$24.99
- + Price: $17.28
- + Rating: 4.6
- + Weather Resistance: IP64
- - Energy Monitoring: NO vs YES
- - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Bluetooth, Zigbee
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.
- Shelly Smart Plug UL
- TP-Link Kasa EP40
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Frequently Asked Questions
Which is better overall: Shelly Smart Plug UL or TP-Link Kasa EP40?
TP-Link Kasa EP40 has the stronger overall profile in this comparison, especially for price, rating, and weather resistance.
What is the biggest difference between Shelly Smart Plug UL and TP-Link Kasa EP40?
Price is one of the clearest differences: Shelly Smart Plug UL lists $24.99, while TP-Link Kasa EP40 lists $17.28.
Which one looks better on price?
Shelly Smart Plug UL is listed at $24.99, while TP-Link Kasa EP40 is listed at $17.28. TP-Link Kasa EP40 (better spec).
Who should buy Shelly Smart Plug UL?
Choose Shelly Smart Plug UL if your priority is energy monitoring and connectivity and that matters more than price.
Who should buy TP-Link Kasa EP40?
Choose TP-Link Kasa EP40 if your priority is price and rating and that matters more than energy monitoring.
Full comparison table
Compare all 36 Plugs side by side
You are looking at two of them. The full table lines up all Plugs in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 36 Plugs
- 31 specs compared
- 28 filters
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AmazonSmart Plug
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PhilipsHue Smart plug (US)
$30.99
PhilipsHue Smart plug (EU)
23% OFF€34.99€26.99
SonoffiPlug Gen2 Type B Matter Over WiFi Smart Plug
$13.90
TP-LinkKasa EP40
31% OFF$24.99$17.28
GoveeSmart Plug Pro with Energy Monitoring
$16.99
YoLinkMini Plug
$19.99
YoLinkSmart Outdoor Energy Plug
15% OFF$32.98$27.99
GoveeSmart Plug Pro
10% OFF$12.99$11.68
TP-LinkTapo P125M
$11.99
AqaraSmart Plug (EU)
ShellyPlug M Gen3
$14.99
SonoffWiFi Smart Plug S60
SonoffiPlug Gen2 Type F Matter Over WiFi Smart Plug
$9.99
FibaroWall Plug (EU)
SonoffZigbee Smart Plug S40 Lite
$12.99
MerossOutdoor Smart Plug (3 Sockets)
10% OFF$30.99$27.89
MerossOutdoor Smart Plug
10% OFF$25.99$23.39
AqaraSmart Plug (US)
9% OFF$32.99$29.99
CamerasShellyCamera
DisplaysShellyWall Display X1i
DisplaysShellyWall Display XL
4.2(62)$349.99
DisplaysShellyWall Display
4.4(434)18% OFF€147.56€121.33
Door & Window SensorsShellyBLU Door/Window ZB
4.5(30)$22.99
Energy MonitorsShelly3EM-63W Gen3
4.6(137)
Energy MonitorsShellyEM Gen3
4.6(265)$69.99
Energy MonitorsShellyEM Gen4
Energy MonitorsShellyEM Mini Gen4
4.5(124)$24.99
Energy MonitorsShellyPro 3EM 3CT63
4.4(337)$150.99
Energy MonitorsShellyPro 3EM-400
4.2(20)$329.99
Energy MonitorsShellyPro 3EM v2
4.5(72)$154.99
Energy MonitorsShellyPro EM-50
4.6(946)$119.99
Gas DetectorsShellyGAS (CNG)
4.2(45)
Gas DetectorsShellyGAS (LPG)
LED BulbsShellyMulticolor Bulb E27 Gen3
4.2(29)
Motion SensorsShellyBLU Motion ZB
4.6(37)$26.99
Motion SensorsShellyBlu Motion
4.0(1,031)$25.99- PlugsShelly
Plug M Gen3
4.5(791)$14.99 
PlugsShellyPlug PM Gen3
CamerasTP-LinkTapo C100
4.4(28,496)$24.99
CamerasTP-LinkTapo C120
4.3(5,357)20% OFF$39.99$31.99
CamerasTP-LinkTapo C210
4.5(22,741)$29.99
CamerasTP-LinkTapo SolarCam C402
4.1(4,906)$59.99
CamerasTP-LinkKasa EC70
4.4(34,119)30% OFF$29.99$20.98
CamerasTP-LinkKasa KC420WS
4.4(4,840)$49.99
CamerasTP-LinkTapo C200
4.5(42,390)19% OFF$26.99$21.98
CamerasTP-LinkTapo C246D
4.5(813)21% OFF$69.99$54.98
CamerasTP-LinkTapo C260
4.6(638)10% OFF$59.99$53.99
CamerasTP-LinkTapo C460
4.4(204)29% OFF$119.99$84.99
CamerasTP-LinkTapo C500
4.5(7,059)10% OFF$39.99$35.99
CamerasTP-LinkTapo C560WS
4.1(619)20% OFF$99.99$79.99
CamerasTP-LinkTapo C615F KIT
4.4(560)$99.99
CamerasTP-LinkTapo C660
4.3(979)$169.99
CamerasTP-LinkTapo MagCam
4.5(2,794)18% OFF€64.90€52.99
DoorbellsTP-LinkTapo D210
4.4(3,705)$58.00
Door LocksTP-LinkTapo DL100
4.4(598)14% OFF$69.99$59.99
HubsTP-LinkTapo H100
4.4(872)$22.99
HubsTP-LinkTapo H500
4.5(560)10% OFF$199.99$179.99
Light StripsTP-LinkTapo L930-5
3.9(399)$35.99