6 Best Kasa Smart Plugs in 2026
Six Kasa smart plugs compared on Matter and HomeKit support, energy monitoring, outdoor use and outlet count, so you can choose the right model for each job.
At a Glance
Kasa is TP-Link's long-running smart home brand, and its plug lineup covers more situations than most people expect. There are basic indoor mini plugs, a plug with energy monitoring, Matter and HomeKit versions, an outdoor model and a power strip with separately controlled outlets.
We compared six distinct Kasa products: the Kasa Smart Plug Ultra Mini 15A, the Kasa Smart Plug HS103, the Kasa Smart Plug Mini EP25 with HomeKit, the Kasa Smart Plug Power Strip KP303, the Kasa Outdoor Smart Plug EP40 and the Kasa Matter Smart Plug KP125MP4. Pack-size variants of the same model were counted once, and everything is evaluated based on product specs and buyer feedback.
The sections below help you match a model to a use: lamps, a desk with many devices, a patio, or an Apple or Matter setup.
6 Criteria to Look For Before Buying a Kasa Smart Plug
Key buying criteria so you get the right fit the first time.
Matter, HomeKit or Wi-Fi only
Kasa sells three tiers of compatibility. The Kasa KP125M works with Matter platforms including Apple Home, Alexa, Google Home and Samsung, the EP25 is built around HomeKit, and the Ultra Mini, HS103 and EP40 are Wi-Fi plugs for Alexa and Google. If you may change speakers or phones, Matter protects the purchase. If you use only Alexa, the cheaper Wi-Fi models are enough.
Energy monitoring
Monitoring shows how much power a device uses, which helps spot a hungry old appliance. The EP25 and KP125M both track energy, and the KP125M logs it over time. The Ultra Mini, HS103 and EP40 do not list it. If you only automate lamps, skip it. If you want to compare a space heater with a fan, it earns its place.
Indoor, outdoor or strip format
Form factor decides where a plug can live. The EP40 has a waterproof cover for outdoor use with two independent sockets, the KP303 supplies three smart outlets with surge protection indoors, and the rest are single indoor plugs. Using an indoor plug outside is unsafe. Match the model to the location first.
Load rating
Maximum load is a safety number. The KP125M lists 15A / 1800W, the EP40 lists 15A / 1875W per outlet, and the Ultra Mini and EP25 list 15A. Check the appliance label before plugging in a heater or air conditioner. A plug running near its limit for hours will get warm, so leave margin.
Setup and Wi-Fi band
All Wi-Fi Kasa plugs use 2.4GHz and the Kasa app. The Ultra Mini and EP40 list this requirement explicitly, and the EP25 mentions Frustration-Free Setup and Google Seamless Setup. If setup stalls, switch your phone to 2.4GHz briefly. Set up the plug near the router first.
Surge protection and USB
Only the KP303 lists ETL-certified surge protection and 2 USB ports. A mini plug does not protect a computer from a surge on its own. For a desk with expensive electronics, a strip adds a safety layer. For a single lamp, it is unnecessary.
6 Best Kasa Smart Plugs in 2026
Kasa Matter Smart Plug with Energy Monitoring KP125MP4
About this pick
The Kasa KP125M combines Matter compatibility with energy monitoring in one plug. It works with Matter-certified platforms such as Apple Home, Amazon Alexa, Google Home and Samsung, and it is rated for 15A / 1800W. The listing says it tracks energy usage over time so you can understand consumption patterns.
Matter also gives smooth local control, so devices on your network respond even when the home internet is down. Together these make it the most complete Kasa plug on this list. The tradeoff is that it is the most capable model rather than the simplest, so households that only need a lamp timer may be paying for features they will not use.
For anyone who wants to see which appliances use the most power, it is the obvious choice. Compared with the EP25, it swaps HomeKit-only support for broader Matter compatibility. Compared with the Ultra Mini, it adds monitoring and Matter but takes a little more setup.
Best for: Households that want Matter support and a view of how much power devices use.
Check price on AmazonSpecs
- Standard: Matter
- Max load: 15A / 1800W
- Monitoring: Energy use tracking
- Platforms: Apple Home, Alexa, Google Home, Samsung
Pros
- +Matter works with Apple Home, Alexa, Google Home and Samsung
- +Energy tracking shows how a device uses power over time
- +Local control keeps responding without internet
- +Fifteen amp rating covers most household loads
Cons
- −More capable than a simple lamp timer needs
- −Matter setup can need a compatible controller
Kasa Smart Plug Ultra Mini 15A EP10P4
About this pick
The Ultra Mini is the everyday Kasa plug, rated for 15A and controlled through the Kasa app. It works with Alexa and Google Home for hands-free voice commands. The app offers timer and countdown schedules for lamps, fans and similar appliances.
Setup requires a 2.4GHz Wi-Fi connection, and the listing says the Kasa app is required. It is a straightforward choice because there is nothing to learn beyond the schedule screen. It does not list Matter or energy monitoring, so it is the plain option in a lineup with richer siblings.
For lamps and holiday lights, it covers the job fully. Compared with the HS103, it has a smaller, more modern body. Compared with the KP125M, it gives up Matter and monitoring in exchange for a simpler feature set.
Best for: Anyone who wants a no-frills Kasa plug for lamps, fans and seasonal lights.
Check price on AmazonSpecs
- Rating: 15A
- Voice: Alexa and Google Home
- Wi-Fi: 2.4GHz
- Scheduling: Timer and countdown
Pros
- +Works with both Alexa and Google Home
- +Timer and countdown schedules cover daily routines
- +Fifteen amp rating handles lamps and small appliances
- +Mini body leaves neighboring outlets easier to use
Cons
- −No Matter or energy monitoring listed
- −Setup depends on 2.4GHz Wi-Fi and the Kasa app
Kasa Smart Plug HS103 Wi-Fi Outlet
About this pick
The HS103 is the long-running Kasa plug, with a touch actuator you can press to switch it on or off by hand. The listing describes voice control through Alexa, remote control from anywhere with the Kasa app and timer or countdown schedules. No hub is required.
The manual touch control is a practical detail, because you can still toggle the appliance without a phone or voice. It is a proven design and a good fit when you want multiple plugs at a low feature level. The tradeoff is a larger body than the Ultra Mini, and it lacks Matter and energy monitoring.
It makes sense for rooms where you want to automate a few lamps and keep a manual fallback. Compared with the Ultra Mini, the body is bulkier but the touch control is handy. Compared with the EP25, it has no HomeKit or energy tracking.
Best for: People who want a proven plug with a manual touch control as a fallback.
Check price on AmazonSpecs
- Voice: Alexa, Google Home
- Remote: Kasa app anywhere
- Scheduling: Timer and countdown
- Hub: Not required
Pros
- +Touch actuator lets you toggle it without a phone
- +No hub is required to get started
- +Kasa app allows control from anywhere
- +Timer and countdown schedules suit lamps and fans
Cons
- −Bulkier body than the Ultra Mini
- −No Matter, HomeKit or energy monitoring
Kasa Smart Plug Mini 15A EP25P4 with Apple HomeKit
About this pick
The EP25 integrates into the Apple ecosystem, so you can ask Siri to turn devices on and off. It also offers energy monitoring with real-time and historical usage, plus a 15A max load. The listing mentions both Amazon Frustration-Free Setup and Google Seamless Setup for easier pairing.
It is the choice if your home runs on iPhones and HomePods and you want energy data without leaving that ecosystem. The setup shortcuts reduce the pairing work for Alexa and Google users too. It predates the Matter version, so it is tied more tightly to HomeKit than the KP125M.
For Apple households it is a natural fit. Compared with the KP125M, it is HomeKit-focused where the KP125M is Matter-focused. Compared with the HS103, it adds energy monitoring and HomeKit but drops the manual touch button.
Best for: Apple households that want Siri control and energy tracking.
Check price on AmazonSpecs
- Platform: Apple HomeKit
- Monitoring: Real-time and historical energy
- Max load: 15A
- Setup: Amazon FFS and Google Seamless Setup
Pros
- +Apple HomeKit support lets Siri control the plug
- +Energy monitoring shows real-time and historical use
- +Setup shortcuts exist for Alexa and Google users
- +Fifteen amp maximum load covers common devices
Cons
- −Less flexible than the Matter version
- −No manual touch control on the body
Kasa Smart Plug Power Strip KP303
About this pick
The KP303 is a surge-protected power strip with 3 individually controlled smart outlets and 2 USB ports. Each outlet can be switched separately, so you can turn off a lamp while leaving a computer powered. The listing highlights ETL-certified surge protection that shields sensitive electronics from sudden power surges.
It suits a desk or entertainment center where several devices share a spot. One strip does the job of three separate plugs and adds USB charging and surge protection. The tradeoff is size, because it takes up more room than a mini plug and has only three smart outlets.
For a home office it consolidates cables. Compared with three Ultra Mini plugs, it needs only one wall outlet and adds surge protection. Compared with the EP40 outdoor plug, it is indoor only and has fewer weather features.
Best for: Desks and TV stands with several devices that benefit from separate switching.
Check price on AmazonSpecs
- Smart outlets: 3, individually controlled
- USB: 2 ports
- Protection: ETL-certified surge protection
- Control: Kasa app and voice
Pros
- +Three outlets can be switched on or off individually
- +ETL-certified surge protection guards sensitive electronics
- +Two USB ports charge phones without adapters
- +One wall outlet powers several smart devices
Cons
- −Bulkier than a mini plug and indoor only
- −Only three of the outlets are smart controlled
Kasa Outdoor Smart Plug EP40 with 2 Sockets
About this pick
The EP40 is Kasa's outdoor model, with 2 AC outlets that work and are controlled independently. Each socket is rated for 15A / 1875W max, and a waterproof cover is attached. It adds voice and remote control to outdoor loads such as patio lights, fountains or holiday displays.
The independent outlets mean you can put the string lights on one schedule and a fountain on another. Setup uses 2.4GHz Wi-Fi and the Kasa app like the indoor models. The tradeoff is that Wi-Fi range outdoors can be weak, so it works best near the house.
It is the only plug here designed for the weather. Compared with the KP303, it handles outdoor use but has no USB ports or surge protection listed. Compared with the Ultra Mini, it gives two outlets and weather protection instead of a compact indoor form.
Best for: Patio lights, fountains and holiday displays that need schedules.
Check price on AmazonSpecs
- Outlets: 2, independently controlled
- Max load: 15A / 1875W each
- Weather: Attached waterproof cover
- Wi-Fi: 2.4GHz
Pros
- +Two outlets can follow separate schedules
- +Waterproof cover is attached for outdoor use
- +Each outlet is rated 15A and 1875W
- +Alexa and Google voice control work outdoors too
Cons
- −Wi-Fi signal may be weak far from the house
- −No USB ports or surge protection listed
How We Evaluated These Kasa Smart Plugs
Each pick was assessed across 5 criteria weighted for real-world use.
Compatibility
We compared platform support across the lineup. The KP125M covers Matter platforms, the EP25 supports Apple HomeKit and the Ultra Mini, HS103 and EP40 work with Alexa and Google. Broader support scored higher for long-term use.
Features
We weighed energy monitoring, surge protection and USB ports. The KP125M and EP25 monitor energy, the KP303 adds surge protection and 2 USB ports, and the EP40 adds weather protection.
Load capacity
We checked the stated limits. The KP125M lists 15A / 1800W, the EP40 lists 15A / 1875W per outlet and the others list 15A. We did not credit unlisted ratings.
Setup simplicity
We considered the app, Wi-Fi band and shortcuts. All Wi-Fi models need the Kasa app and 2.4GHz, and the EP25 mentions Frustration-Free Setup. Fewer steps scored higher.
Lineup positioning
The KP125M leads overall, the Ultra Mini is the plain everyday plug, the HS103 is the classic with a touch button, the EP25 serves Apple homes, the KP303 serves desks and the EP40 serves patios.
How to Choose the Right Kasa Smart Plugs
By Where It Will Live
Location decides the model more than any spec.
| Location | Pick | Why |
|---|---|---|
| Living room lamp | Kasa Smart Plug Ultra Mini 15A EP10P4 | Compact 15A plug with timers |
| Home office desk | Kasa Smart Plug Power Strip KP303 | 3 smart outlets plus surge protection |
| Patio or yard | Kasa Outdoor Smart Plug EP40 with 2 Sockets | Waterproof cover and two sockets |
| Apple household | Kasa Smart Plug Mini 15A EP25P4 with Apple HomeKit | Siri control and energy data |
| Mixed platforms | Kasa Matter Smart Plug with Energy Monitoring KP125MP4 | Matter across Apple, Alexa and Google |
Never use an indoor plug outdoors.
By Budget
Relative tiers by features.
| Tier | Pick | What you get |
|---|---|---|
| Entry | Kasa Smart Plug Ultra Mini 15A EP10P4 | Basic scheduling and voice |
| Entry to mid | Kasa Smart Plug HS103 Wi-Fi Outlet | Touch control and Kasa app |
| Mid | Kasa Smart Plug Mini 15A EP25P4 with Apple HomeKit | HomeKit and energy monitoring |
| Mid to premium | Kasa Matter Smart Plug with Energy Monitoring KP125MP4 | Matter and monitoring |
| Premium | Kasa Outdoor Smart Plug EP40 with 2 Sockets | Two weatherproofed outlets |
Tiers describe feature scope, not exact prices.
Single Plug vs Power Strip
One outlet or several.
Single plugs
The Ultra Mini, HS103, EP25 and KP125M each control one device. Choose them for lamps and fans scattered around the home. They are compact and flexible.
Power strip
The KP303 has 3 individually controlled outlets, 2 USB ports and ETL-certified surge protection. Choose it for a desk or TV stand where several devices live together.
Count the devices at the spot before choosing.
Monitoring and Protection
Extra features each solve a different problem.
| You want | Pick | Trade-off |
|---|---|---|
| Energy usage over time | Kasa Matter Smart Plug with Energy Monitoring KP125MP4 | More than a lamp needs |
| Energy with HomeKit | Kasa Smart Plug Mini 15A EP25P4 with Apple HomeKit | Less flexible than Matter |
| Surge protection | Kasa Smart Plug Power Strip KP303 | Bulkier format |
| Weather resistance | Kasa Outdoor Smart Plug EP40 with 2 Sockets | Weaker outdoor Wi-Fi |
| Manual fallback | Kasa Smart Plug HS103 Wi-Fi Outlet | No monitoring |
Pick the feature that solves a real problem.
For Holiday and Patio Lighting Specifically
Seasonal lights are a classic use.
Look for
A weather-rated outlet, enough load for the lights and a schedule that follows dusk.
In this comparison
The Kasa Outdoor Smart Plug EP40 gives two sockets at 15A / 1875W each with a waterproof cover. Indoor trees can use the Ultra Mini or the KP303.
Place the EP40 where your Wi-Fi reaches.
When to Spend More
Bigger models help only when you use the extras.
| Spend more if | Save if |
|---|---|
| You want the KP125M's Matter and monitoring | The Ultra Mini's scheduling is enough |
| You want the EP25's HomeKit support | You do not use Apple Home |
| You want the KP303's surge protection | You only control a single lamp |
| You want the EP40's waterproof cover | All your devices are indoors |
Choose by use, not by feature count.
Frequently Asked Questions
Which Kasa smart plug is best?
The Kasa Matter Smart Plug with Energy Monitoring KP125M is the best overall for most people. It supports Matter, tracks energy and rates 15A / 1800W. For a simple lamp, the Ultra Mini is enough.
Do Kasa plugs need a hub?
No. The listings say no hub is required for the HS103, and the others connect over Wi-Fi. You do need the Kasa app and a 2.4GHz network.
Can I use a Kasa plug outside?
Only the Kasa Outdoor Smart Plug EP40 is designed for it, with an attached waterproof cover. Indoor models should stay indoors.
Does Kasa work with Apple Home?
The EP25 supports HomeKit and the KP125M supports Matter, which includes Apple Home. The Ultra Mini and HS103 list Alexa and Google Home instead.
What does energy monitoring tell me?
It shows how much power a plugged-in device uses, both live and over time. That can reveal a power-hungry appliance. It is optional for simple lamp control.
What if setup fails?
Check that your phone is on a 2.4GHz network and that you are near the router. Restart the app and try again. Move the plug to its final spot afterward.
Is a smart power strip better than three plugs?
For a desk, often yes, since the KP303 adds surge protection and USB ports with a single wall outlet. For scattered lamps, individual plugs are better.
Bottom Line
best overall: Kasa Matter Smart Plug with Energy Monitoring KP125MP4 - best overall pick in this roundup.
See the full rankings above for all picks with pros, cons, and best-for summaries.
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