Product Review

Kasa Smart Plug HS103P4 Review: The Best Smart Plugs for the Money

📅 Updated July 2026 ✍️ By HomeBot Future Editorial Team ⏱️ 6 min read

The TP-Link Kasa Smart Plug HS103P4 4-pack is the best value in smart home technology. For around $29, you get four smart plugs that work with Alexa, Google Assistant, and IFTTT — no hub required. With 150,000+ Amazon ratings averaging 4.7 stars, this is one of the most popular smart home products ever. This review explains why it is our top pick.

What Kasa Smart Plugs Do

Kasa Smart Plugs turn any standard outlet into a smart outlet:

• Remote control — Turn devices on/off from anywhere via the Kasa app
• Voice control — Works with Alexa, Google Assistant, and IFTTT
• Scheduling — Set schedules for lamps, fans, and appliances
• Timer — Auto-off after a set period
• Away mode — Random on/off to simulate occupancy
• Energy monitoring — Track power usage (on some models)

Key Strengths

Unbeatable Value

At around $29 for a 4-pack (less than $7.50 per plug), the Kasa Smart Plugs are the best value in smart home technology. You get reliable smart plugs at a fraction of the cost of competing brands.

No Hub Required

Kasa Smart Plugs connect directly to your Wi-Fi network. You do not need a separate smart home hub. This makes setup simple and keeps costs down.

Reliable Performance

With 150,000+ ratings averaging 4.7 stars, the Kasa Smart Plugs have proven reliable for hundreds of thousands of customers. TP-Link's Kasa app is mature and well-supported.

15-Amp Capacity

Each plug handles up to 15 amps (1,800 watts), enough for most household appliances including lamps, fans, coffee makers, and space heaters.

UL Certified

Kasa Smart Plugs are UL certified for safety. This is important for any device that handles significant electrical current.

Common Use Cases

Lamp Automation

Plug lamps into Kasa Smart Plugs to automate lighting. Schedule lamps to turn on at sunset and off at bedtime.

Coffee Maker

Plug your coffee maker into a Kasa Smart Plug and schedule it to start brewing before you wake up.

Fan Control

Control fans remotely or schedule them to turn on during hot parts of the day.

Holiday Lights

Automate holiday lights with schedules and away mode.

Who Should Buy

Buy the Kasa Smart Plug 4-pack if:

• You want to automate lamps, fans, or small appliances
• You want the best value in smart home technology
• You use Alexa or Google Assistant
• You want simple setup (no hub required)
• You want proven reliability (150,000+ ratings)

Pros and Cons

Pros

• No hub required — connects via Wi-Fi
• Works with Alexa, Google Home, IFTTT
• 15-amp, UL certified for safety
• Schedule and timer automation
• Remote control via Kasa app
• Verified Amazon product with strong customer reviews
• Backed by manufacturer warranty and support

Cons

• Price may be higher than budget alternatives
• Requires Wi-Fi for smart features
• Some features require a companion app account

The Bottom Line

The Kasa Smart Plug HS103P4 — 4-Pack is a top choice in its category. With 4.7 stars and 150,000+ customer reviews on Amazon, it has proven reliable for thousands of buyers. At $29, it delivers genuine value for anyone building a smart home or preparing for the humanoid robot era.