Can I run a pool pump from an outdoor smart plug?

Check the motor rating before anything else. The Kasa EP40 and the Wyze Plug Outdoor publish half a horsepower. TP-Link's two documents for the Tapo P400M disagree, one saying half a horsepower and the datasheet saying one-sixth, so plan around the lower figure. Meross says outright not to use its outdoor plug for a pump. Many pool pumps are larger than any of these ratings, so the pump's own label decides it.

Will an outdoor smart plug work through winter?

The three makers that publish a temperature range for these plugs all start at -4 °F: the Kasa EP40 and Tapo P400M run to 122 °F and the Wyze to 120 °F. Meross and GE publish no range in our records. Their weather ratings cover rain and splashing, not standing water.

Does an outdoor smart plug need a GFCI outlet?

TP-Link states that the Kasa EP40 must go into a receptacle with ground-fault protection when used outdoors or in a wet location. The records for the other four plugs carry no statement either way, which is not the same as saying it is optional.

Outdoor Smart Plugs Compared: Which Reach Apple Home, and What Each Can Power

If your household runs on Apple Home, three of these five outdoor plugs can reach it and two cannot. That is usually the first thing to settle, because the plugs split more cleanly by platform than by any hardware feature. After that, the decision comes down to what you are powering: holiday lights and a fountain fit every plug here, while a pump runs into ratings that two of the makers contradict in their own documents.

These are the five outdoor plugs in our library: the Tapo P400M, the GE Cync Outdoor Smart Plug (Matter), the Meross MSS620BHK, the Kasa EP40 and the Wyze Plug Outdoor.

Which platforms each one reaches

Plug	Alexa	Google Home	Apple Home	SmartThings	Home Assistant
Tapo P400M	Yes, over Matter	Yes, over Matter	Yes, over Matter	Yes, over Matter	Yes, over Matter
GE Cync (Matter)	Yes, over Matter	Yes, over Matter	Yes, over Matter	Yes, over Matter	Yes, over Matter
Meross MSS620BHK	Yes	Yes	Yes, native HomeKit	Unsettled	Community route only
Kasa EP40	Yes	Yes	No	Unsettled	Yes, official
Wyze Plug Outdoor	Yes	Unsettled	No	No	Not established

The two Matter plugs reach every platform, and the price of that is a hub. Matter needs a controller for your platform in the house: a HomePod or Apple TV for Apple, a Matter-capable Echo for Alexa, a Nest hub or Google TV Streamer for Google, or a SmartThings hub. The phone app on its own will not add either plug.

The Meross reaches Apple Home the older way, as a HomeKit accessory, with no Matter involved. Controlling it from away from home still needs an Apple home hub, as every HomeKit accessory does.

Google support for the Wyze is unsettled because Wyze’s own pages disagree. Its integrations page lists this model as Alexa-only, while a support article answers yes for “Wyze Plug”, a name that belongs to the indoor model. Treat Google support as unconfirmed until Wyze clears that up.

Three names that hide a different plug

Each of these has a near-identical sibling that behaves differently, and the difference is only visible in the model number.

Kasa EP40 and EP40M. The M version is certified for Matter and the plain EP40 is not, which is why the EP40 has no route to Apple Home.
GE Cync CPLGOD2BLMS and CPLGOD2BLG1. Only the first is the Matter version. GE’s own storefront mixes the two, showing the non-Matter catalogue number under a store address that says “matter compatible”. Buy by part number or barcode.
Meross MSS620BHK and the non-HK variants. Only the HK-suffixed models carry HomeKit, and the product titles read almost the same.

What happens when the internet goes down

Each control route behaves differently in an outage.

Our record for the Kasa EP40 does not establish how the plug itself behaves offline. Its Alexa and Google voice control run between TP-Link’s service and theirs, so they need the internet. Home Assistant talks to the EP40 over your own network, though the setup still asks for your TP-Link account details.

The Meross stays controllable in Apple Home, which is local, while its Alexa and Google routes go through Meross’s cloud and stop. The Wyze runs everything through Wyze’s cloud, with no local route. For the GE Cync, Home Assistant documents Matter devices as working without an internet connection. Our record for the Tapo P400M does not establish how it behaves offline, so we leave that open.

What each one can power

Four of the five publish 15 amps in some form. The numbers that separate them are the motor ratings and, on two of them, the maker’s own contradictions.

Kasa EP40: 15 A and 1,875 W in total, half a horsepower for motors.
Wyze Plug Outdoor: 15 A, half a horsepower for motors, with overload protection.
Tapo P400M: TP-Link’s product page says half a horsepower. Its datasheet says one-sixth, with 1,800 W for resistive loads and 8 A for incandescent lighting. That is a threefold gap on the figure that matters for a pump, so our record treats the datasheet’s lower number as the specification.
GE Cync (Matter): GE’s specification lists 120 volts and a maximum load of 15, then a wattage of 180, a tenth of what those two numbers imply. Plan around the lower figure until GE reconciles them.
Meross MSS620BHK: no amperage in our record, and one explicit exclusion from Meross: “Do not use it for the pump.”

For string lights, a fountain or a patio lamp, none of this is likely to bite. For a pump or anything with a motor, the smart plug load guide explains why the motor rating is the one to read.

Weather ratings and where to mount them

The Meross is rated IP44, which covers rain and splashing. The Kasa EP40 and the Wyze are IP64, which adds dust protection but still means splashing rather than immersion. The Tapo P400M is IP65 with conditions TP-Link prints in its datasheet: keep the plug face down, at least a foot off the ground, with the weatherproof cover closed when an outlet is not in use. GE describes its plug as outdoor rated without publishing an IP figure in our record.

TP-Link also says the EP40 must go into a receptacle with ground-fault protection when it is used outdoors.

Energy monitoring, price and availability

The Wyze Plug Outdoor is the only one of the five that tracks energy use, and those readings stay in the Wyze app rather than appearing in Alexa.

Prices are uneven on this shelf, and a price is not the same as being able to buy one. The Wyze was $29.98 on Wyze’s own store, and the Meross was $25.99 on Meross’s store as a sale price, from a listing that was out of stock when we checked. TP-Link’s Tapo store prices the P400M at $25.99, but it read sold out on both dates we looked, fifty days apart, and TP-Link has published nothing either way. TP-Link publishes no price for the EP40, and GE publishes no price for the Matter version at all. Check stock before you plan a weekend around one.

Which one fits your setup

Apple Home or SmartThings household with a hub already in place. The Tapo P400M and GE Cync (Matter) are the two that reach both platforms. For a pump, weigh their contradictory load ratings first.

Apple Home only, and you want to skip Matter. The Meross MSS620BHK is a native HomeKit accessory that stays controllable in an internet outage, provided you can find it in stock.

Alexa or Google household that also runs Home Assistant. The Kasa EP40 has an official Home Assistant integration that works on your own network, which none of the others offers.

Alexa household that wants to see what the lights cost to run. The Wyze is the only outdoor plug here with energy history, with no route to Apple Home or SmartThings.

Run your own platform and hub through the compatibility checker to see which of these fits before you buy.