
Kasa Smart WiFi Plug HS110
Score: 80/100
Kasa Smart Outdoor Smart Plug KP400
Score: 81/100Rankings

The Kasa KP400 is a dual-outlet outdoor smart plug with an IP64 rating, long Wi-Fi range and voice-assistant integration for up to 1875 W of power. It does not provide energy monitoring and is limited to 2.4 GHz Wi-Fi, requiring a GFCI-protected outlet for safe outdoor use. Ideal for homeowners who want reliable remote control of moderate-power outdoor devices such as lights or holiday decorations.

The TP-Link Kasa HS110 smart plug offers 2.4 GHz Wi-Fi control, real-time energy monitoring and a slim stackable form factor. Its lack of 5 GHz Wi-Fi and a maximum 15 A load may restrict high-power devices. Best suited for energy-conscious homeowners who want detailed power insights and broad voice-assistant integration.
| Attribute | ![]() | ![]() |
|---|---|---|
1,800 W | 1,875 Wbest | |
— | 125 Vbest | |
15 Abest | 15 Abest | |
2 yearsbest | 2 yearsbest | |
| ↓ lower better | 150 gbest | 290 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power(2) | ||
Input Voltage (V) | 100-120 V | 125 V |
Maximum Power Rating (W) | 1800 W | 1875 W |
Features(1) | ||
Energy Monitoring | true | false |
General(1) | ||
Indoor Use | true | false |
Build & Design(3) | ||
Device Weight (g) | 150 g | 290 g |
Device Dimensions (L×W×H) (mm) | 2.5x3.9x2.6 in mm | 58.2x60.5x124.6 mm mm |
Material | UL 94-V0 Flame Retardant PC | PC (UL94 V-0) |

Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the plug's space-saving slim design, robust energy-monitoring analytics and extensive voice-assistant support, noting that Matter certification adds future-proof value. They view the device as a solid evolution over the older HS110, offering better integration and safety features.
Everyday users appreciate the easy app setup, accurate power tracking and the ability to automate devices with scheduling and Away Mode. Common concerns revolve around occasional Wi-Fi drops on crowded 2.4 GHz networks and the lack of immediate auto-off in the energy-monitoring feature.


