Smart Plugs Compared Across Every Protocol
All 46 plugs we rank, from 5 review pages, in one table. Filter by the smart home system you use or by protocol, then open a product to see its full review.
Smart Plugs by protocol
How do these protocols differ? Show the pros and cons
Pros
- Sub-GHz radio doesn't compete with Wi-Fi or Zigbee on 2.4 GHz
- Lower frequency gets through walls and floors better than 2.4 GHz
- Mandatory certification, so devices from different brands work together
- Every mains-powered device repeats the signal and extends the mesh
- S2 security is required on newer certified devices
- Z-Wave Long Range reaches outbuildings and supports up to 4,000 devices
Cons
- Needs a hub or USB controller; there's no phone-only setup
- Devices usually cost more than Zigbee or Wi-Fi equivalents
- Frequencies are regional, so a US device won't work on an EU controller
- Low bandwidth rules out cameras and anything streaming
- Classic mesh tops out at 232 devices and 4 hops
Our take: The safest pick for a hub-based setup that has to keep working for years. Every certified device talks to every certified controller, and its band stays out of Wi-Fi's way.
Pros
- Sensors and buttons are among the cheapest on the market
- Huge catalog from Aqara, IKEA, Philips Hue, Sonoff, Third Reality, and others
- Mains-powered devices act as routers and strengthen the mesh
- Coin-cell battery devices run for a year or more
- Works fully local with Home Assistant (ZHA or Zigbee2MQTT)
Cons
- Shares the 2.4 GHz band with Wi-Fi, so channel planning matters
- Some brands bend the spec; Aqara devices can drop off third-party routers
- Needs a coordinator (hub or USB stick)
- Brand hubs like Hue only accept their own approved devices
- Bulbs used as repeaters break the mesh when someone flips the wall switch
Our take: The budget king for sensors and bulbs. Pair it with a good coordinator and plenty of plug-in repeaters and it's rock solid.
Pros
- No hub; it joins the network you already have
- Enough bandwidth for live video and audio
- Widest choice of brands and the lowest entry prices
- Setup is usually an app and a few taps
Cons
- Power hungry; battery Wi-Fi sensors need frequent charging
- Many devices only support 2.4 GHz, which complicates setup on mixed-band routers
- Dozens of devices can overload consumer routers
- Many products depend on the maker's cloud and stop working if it shuts down
- No mesh between devices; range is whatever your router covers
Our take: Right for cameras, doorbells, and anything plugged in. Wrong for battery sensors, and a few dozen devices can overload a cheap router.
Pros
- Every device gets an IPv6 address, so there's no proprietary translation layer
- Self-healing mesh with no single point of failure if you run more than one border router
- Low power with fast response times
- Border routers are built into devices many people already own: HomePod mini, Apple TV 4K, Nest Hub (2nd gen), and some Echo models
Cons
- Needs a Thread border router
- Border routers from different ecosystems don't always share one network
- Smaller product catalog than Zigbee or Z-Wave
- Shares the 2.4 GHz band with Wi-Fi and Zigbee
- Newer standard, so firmware and pairing bugs still show up
Our take: The best bet for new battery devices if you already own a border router. The catalog is still smaller than Zigbee's or Z-Wave's.
Pros
- One device works with Apple Home, Google Home, Alexa, SmartThings, and Home Assistant
- Multi-admin lets several ecosystems control the same device at once
- Local control by design, no cloud needed for day-to-day use
- Setup is a QR code scan in whichever app you prefer
Cons
- Only device types in the current spec are supported, so advanced features often stay in the maker's app
- Each platform exposes a different slice of what a device can do
- Pairing and multi-admin bugs are still common
- Matter over Thread devices still need a Thread border router
Our take: Buy Matter devices when you can, because they keep your options open. Check that the features you need are in the spec before you buy.
All plugs
All protocols
Swipe the table sideways to see every column.
Scores come from each product's protocol page, where it was ranked against devices on the same protocol. Red rows are the picks we tell you to avoid. Prices captured from Amazon between 2026-10-04 and 2026-10-04.