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

The Kasa Outdoor Smart Plug (KP401) provides weather-proof, dual-outlet control with a long 300 ft Wi-Fi range, making it ideal for garden lights, pumps and other outdoor devices. Its limitations include a 2.4 GHz-only connection, the need to cap unused sockets, and a relatively large size. It is best suited for homeowners who need reliable, voice-controlled outdoor power management.

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 |
General(1) | ||
Certifications | RoHS, FCC, UL | FCC, ETL, IC, RoHS, IP64 |
Build & Design(2) | ||
Device Weight (g) | 150 g | 290 g |
Device Dimensions (L×W×H) (mm) | 2.5x3.9x2.6 in mm | 124.6×60.5×58.2 mm mm |

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.

“"Reliable app/remote control from anywhere" - Customer review”

“"Robust weatherproofing surviving rain/splashes" - Customer review”




Professional reviewers commend the KP400 for its exceptional 300 ft Wi-Fi range, robust IP64 protection, and dual-outlet independent control, emphasizing its suitability for outdoor lighting and pump automation. They also note the fire-retardant housing and ETL safety certification as strong safety credentials, while calling out the bulkier size and 2.4 GHz-only limitation as minor drawbacks.
Consumers repeatedly praise the plug's reliable app control, seamless Alexa voice integration, and durable weatherproof design that holds up in rain. Common themes include appreciation for the long Wi-Fi range and dual outlets, balanced by complaints about occasional connectivity drops, iOS setup hiccups, and the requirement to cap unused sockets.