Kasa Smart HS210 3-Way Smart Switch

Kasa Smart HS210 is a Wi-Fi smart light switch for single-pole or 3-way lighting setups. It requires a neutral wire and 2.4 GHz Wi-Fi, and adds app and voice control plus scheduling. It is not compatible with 4-way configurations.

At a glance

Works in single-pole or 3-way lighting setups, but not 4-way configurations.
App-based remote switching, schedules, countdown timers and an away mode are listed.
Voice control is listed for Alexa and Google Assistant.

Price

$13.99Save 30%

Reference price: ~~$19.99~~

Price checked: Nov 13, 2026

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Often bought together

Kasa Smart Light Switch, Single Pole, Need Neutral Wire, HS200P3 | 2.4GHz Wi-Fi, Works with Alexa & Google Home, UL Certified, No Hub Required, White, 3-Pack

$32.99

Kasa Smart 3-Way Dimmer Switch Kit, KS230 KIT v2, Need Neutral Wire | 2.4GHz Wi-Fi, Dimmable Light Switch Works with Alexa, Google Home & SmartThings, ETL Certified, No Hub REquired, White

$33.99

Pros and cons

Pros

App-guided setup is intended to make installation more approachable, and customers report generally easy setup.
Scheduling and remote switching can help control lights when away from home.
Listed Alexa and Google Assistant support provides voice-control options.

Cons

Requires neutral wiring and 2.4 GHz Wi-Fi, which may rule it out for some existing wiring or network setups.
It is not compatible with 4-way configurations. It is an on/off switch rather than a listed dimmer.

Technical specifications

8 specifications

Identity
Brand	Kasa Smart
Model	HS210

Connectivity and controls
Wireless connection listed	Wi-Fi
Control method listed	App
Voice control compatibility	Alexa or Google Assistant

Installation and dimensions
Mounting type	Wall Mount
Dimensions	4.13 x 1.71 x 1.77 inches

Materials and protection
Material	Polycarbonate

What to know before buying

Installation requires a neutral wire and 2.4 GHz Wi-Fi. The listing recommends consulting an electrician if you are unfamiliar with electrical wiring. Update firmware through the Kasa or Tapo app for best performance.
Customer feedback is mixed on connectivity and reliability. Some customers report rapid self-switching or units failing after several years, so consider those concerns if dependable long-term operation is a priority.

What’s in the box

Included

Smart light switch
3-way component
Wall plate
2 wire nuts
Quick Start Guide

Who is it for?

A good fit for

People replacing a switch in a compatible single-pole or 3-way lighting circuit who have neutral wiring and 2.4 GHz Wi-Fi.
Households seeking app, Alexa or Google Assistant control and scheduled on/off lighting.

Less suited to

4-way circuits, installations without a neutral wire, or networks without 2.4 GHz Wi-Fi.
Buyers who need dimming rather than on/off switching.

Kasa Smart HS210 3-Way Smart Switch · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 19,974 ratings

5 stars79%79%
4 stars12%12%
3 stars4%4%
2 stars1%1%
1 star4%4%

Customer feedback commonly highlights easy installation and setup, Alexa compatibility, and quick command response. Reports are mixed on connectivity and responsiveness, with some customers describing rapid on/off behavior, and reliability concerns include units reportedly failing after several years. Those experiences matter for a Wi-Fi-controlled switch intended for routine lighting. The aggregate rating is broadly positive, but does not establish performance in every wiring or network setup.

Positive themes

Customers report easy installation and setup.
Customers mention Alexa compatibility and quick response to commands.

Negative themes

Some customers report connectivity or reliability problems, including units failing after several years.
Some report the switch turning on and off rapidly by itself.