TP-Link Kasa · Updated June 2026
Kasa Smart Wi-Fi Plug Slim KP125M: price, specs & release date
Kasa Smart Wi-Fi Plug Slim KP125M, released 2023-04-07. Every price and spec below is linked to its source and dated — no guesses.
Source: tp-link.com verified ✓ corroborated verify in ledger
The Kasa Smart Wi-Fi Plug Slim KP125M is listed at $39.99 on tp-link.com as of 2026-06-27, #11 cheapest of 12 smart plugs (median $31); other retailers may be lower. It earns a Bronze Deskmark — 61/100 pay-blind standing, #7 of 12 in class.
Verified Jun 27, 2026 · figures linked to their source in the table below
- Best for Best smart plug the tester has tried; slim design plus Matter support and energy monitoring; Fast and responsive control with no connectivity issues over two weeks of use.
- Skip if Sold only in multipacks (two- or four-packs), no single-unit option is a dealbreaker.
Is the Kasa Smart Wi-Fi Plug Slim KP125M a good buy?
At $40, the Kasa Smart Wi-Fi Plug Slim KP125M is #11 cheapest of the 12 smart plugs we track, where the median is $31. On the spec sheet, its max load amps of 15 is the highest of the 12, its pack size of 2 is at the median of the 12, and its release year of 2023 is at the median of the 9. By release date, it is among the newer of the 9 we date.
Evidence of Record
Our dataNo independent lab has measured this product yet. 1 outlet has it on record by mention only, with no hands-on measurements published to weigh its claims against — a gap in the evidence, not a verdict on the product.
Review consensus · sourced & dated
What reviewers say about the Kasa Smart Wi-Fi Plug Slim KP125M
Only one whitelisted tester with a genuine hands-on review: Reviewed (USA Today) tested the KP125M for close to two weeks and calls it the best smart plug it has tested, praising instant response, easy setup and energy monitoring. Its gripes are multipack-only availability and a premium price.
Based on 1 review · 1 lab-tested · 2023-05-25
Tested by Reviewed
Consistently praised
- Best smart plug the tester has tried; slim design plus Matter support and energy monitoring
- Fast and responsive control with no connectivity issues over two weeks of use
- Quick, painless setup that auto-synced with the existing Alexa account
Commonly flagged
- Sold only in multipacks (two- or four-packs), no single-unit option
- Pricey relative to non-Matter smart plugs
Where reviewers disagree Only one whitelisted hands-on review survived verification (Reviewed / USA Today), so genuine cross-source disagreement cannot be assessed.
The sources (1)
This is the best smart plug we've tested thanks to its slim design, energy monitoring capabilities, and support for Matter, giving the competition a run for the money.
The only thing that might be a dealbreaker for some people is that the product is currently only available in multipacks.
I also think they are fairly pricey as smart plugs go.
Specifications
| Price (US) | $39.99 MSRP 2-pack (KP125MP2); 4-pack $69.99 |
|---|---|
| Brand | TP-Link Kasa |
| Released | 2023-04-07 |
| Protocol | matter_wifi |
| Hub required | No |
| Energy monitoring | Yes |
| Max load amps | 15 |
| Works with | Alexa, Google Assistant, Apple HomeKit (Siri), Samsung SmartThings |
| Pack size | 2 |
| Outdoor rated | No |
Source: tp-link.com (verified 2026-06-19) · corroborated by amazon.com. TP-Link press release (20552) confirms April 7 2023 launch as Kasa's first Matter-certified plug with energy monitoring, 2-pack MSRP $39.99, 4-pack $69.99, 15A/1800W, works with Apple Home/Alexa/Google/SmartThings. Indoor-only, 2.4GHz Wi-Fi, no hub for Matter. Corroboration URL updated to the official Amazon KP125M 2-pack listing.
Is the Kasa Smart Wi-Fi Plug Slim KP125M worth it vs cheaper smart plugs?
Kasa Smart Wi-Fi Plug Slim KP125M against its closest cheaper and pricier smart plugs on the specs that matter — every value sourced. See all 12 ranked
| Product | Price | Protocol | Hub required | Energy monitoring | Max load amps | Works with |
|---|---|---|---|---|---|---|
| Kasa Smart Wi-Fi Plug Slim KP125M this | $39.99 | matter_wifi | No | Yes | 15 | Alexa, Google Assistant, Apple HomeKit (Siri), Samsung SmartThings |
| Eve Energy (Matter) | $39.95 | matter_thread | Yes | Yes | 15 | Alexa, Google Assistant, Apple HomeKit (Siri), Samsung SmartThings, Home Assistant |
| Kasa Smart Plug Mini EP25 | $49.99 | wifi | No | Yes | 15 | Alexa, Google Assistant, Apple HomeKit (Siri), Kasa app |
Frequently asked questions
What do reviewers say about the Kasa Smart Wi-Fi Plug Slim KP125M?
Only one whitelisted tester with a genuine hands-on review: Reviewed (USA Today) tested the KP125M for close to two weeks and calls it the best smart plug it has tested, praising instant response, easy setup and energy monitoring. Its gripes are multipack-only availability and a premium price. Praised: Best smart plug the tester has tried; slim design plus Matter support and energy monitoring; Fast and responsive control with no connectivity issues over two weeks of use; Quick, painless setup that auto-synced with the existing Alexa account. Flagged: Sold only in multipacks (two- or four-packs), no single-unit option; Pricey relative to non-Matter smart plugs. (From 1 tester review, 1 lab-tested.)
How much does the Kasa Smart Wi-Fi Plug Slim KP125M cost?
The Kasa Smart Wi-Fi Plug Slim KP125M has a US price of $39.99 (MSRP 2-pack (KP125MP2); 4-pack $69.99), as of 2026-06-19.
How does the Kasa Smart Wi-Fi Plug Slim KP125M compare on price?
At $40, the Kasa Smart Wi-Fi Plug Slim KP125M is #11 cheapest of the 12 smart plugs we track, where the median is $31.
When was the Kasa Smart Wi-Fi Plug Slim KP125M released?
The Kasa Smart Wi-Fi Plug Slim KP125M was released 2023-04-07.
What are the Kasa Smart Wi-Fi Plug Slim KP125M's key specs?
Kasa Smart Wi-Fi Plug Slim KP125M (TP-Link Kasa): protocol matter_wifi, hub required No, energy monitoring Yes, max load amps 15, works with Alexa, Google Assistant, Apple HomeKit (Siri), Samsung SmartThings. Full sourced spec sheet verified 2026-06-19.
Price of record: $39.99 at tp-link.com, 2026-06-27. Other retailers may be lower — check the current price:
Check current price at amazon.com As an Amazon Associate we earn from qualifying purchases.Similar smart plugs
Nearest in price — swipe to browse. Every pick sourced and dated.
All smart plugs ranked · Open data & methodology · Queryable via MCP
Compare with
Cheaper smart plugs
- Eve Energy (Matter) $39.95
- Meross Matter Smart Wi-Fi Plug Mini MSS115 $34.99
- Emporia Energy Monitoring Smart Plug $34.99
- Govee Smart Plug Pro H5086 $32.99
- Kasa Smart Plug Mini HS103 $29.99
- Wyze Plug $29.98
Step up
- Kasa Smart Plug Mini EP25 $49.99
More from TP-Link Kasa
- Kasa Smart Plug Mini EP25 $49.99
- Kasa Smart Plug Mini HS103 $29.99
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