Kasa Smart Plug HS103 Review: Is It Still the Best in 2026?

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Kasa Smart Plug

Last updated: October 2026 · Written by Ugo Daniel, founder of Wallstores

The Kasa Smart Plug (TP-Link’s HS103 line) is one of the most-reviewed smart plugs on Amazon, with a track record going back years. We took a close look at its live Amazon listing to see if it still holds up against newer competition in 2026.

How we research this review: the price, rating, and review count below come directly from the product’s live Amazon listing at the time of writing. We don’t accept free review units from this brand, and we don’t claim to have tested this unit ourselves — this review is built from verified specs and a close read of real buyer feedback, not a hands-on test.

Kasa Smart Plug HS103P4

Price: $34.07 · Rating: 4.6/5 (150,600 ratings) · See Price on Amazon →

What It Is

A WiFi smart plug that lets you turn any plugged-in device on or off remotely, schedule it, or group it into routines — no hub required, and it works directly with Alexa, Google Home, and Echo.

Why We Selected It

With over 150,000 ratings at a 4.6-star average, it has one of the deepest, longest-running track records of any smart plug currently sold, across multiple product generations.

Who It’s For

Buyers who want a proven, no-fuss smart plug that works reliably across whichever voice assistant they already use, without needing a smart-home hub.

Who Should Avoid It

Anyone who specifically wants energy-usage tracking — the standard HS103 line doesn’t monitor power draw, unlike some newer competitors such as Govee’s energy-monitoring plug.

Pros

150,600+ ratings at 4.6 stars — one of the deepest track records in the category, Works with Alexa, Google Home, and Echo with no hub, UL certified and 15A rated, Physical button as a manual backup, Consistently available in multi-packs for whole-home setup.

Cons

No energy monitoring on this model, 2.4GHz WiFi only (no 5GHz support), Kasa app required for scheduling and routines.

Important Specs

2.4GHz WiFi · 15A rated, UL certified · works with Alexa, Google Home & Echo · no hub required.

What Type of Buyer Should Choose It

Buyers who want the single most battle-tested smart plug brand with the broadest voice-assistant support and don’t need energy monitoring.

Compared to the Alternatives

At $36.99, the Govee Smart Plug adds per-outlet energy monitoring that Kasa lacks, though with a much smaller review base (1,200 vs. 150,600+). The Amazon Smart Plug 2-Pack costs less ($23.98) and has an even larger review base (571,200+), but is built specifically around Alexa rather than working equally well across assistants.

See Price on Amazon →

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