Smart-home starter guide: where to begin without regret
Done well, a smart home quietly handles small chores: lights that come on at dusk, a text when the water heater leaks, heat that turns down when everyone leaves. Done badly, it’s a drawer of gadgets on five different apps. Here’s how to start on the right foot.
Start with problems, not gadgets
Before buying anything, list three small annoyances. “I come home to a dark porch.” “I worry about leaks under the sink.” “The kids leave the lights on.” Buy the device that solves the first one, live with it for a couple of weeks, then add the next. A home that grows this way stays useful and easy to manage.
Pick one platform
A platform is the app (and often the speaker or hub) that ties everything together. Choose based on the phones in your house and what you already own:
| Platform | Best fit |
|---|---|
| Apple Home | Households that are all-iPhone. Strong privacy. An Apple TV or HomePod acts as the home hub. |
| Google Home | Android households or a mix. Good voice control through Nest speakers and displays. |
| Amazon Alexa | Households already using Echo speakers. Very wide device support. |
| Samsung SmartThings | Samsung appliance owners and people who want more automation options. |
| Home Assistant | Tinkerers who want local control and unlimited flexibility, and don’t mind maintaining it. |
Then buy devices that clearly support your platform, ideally through Matter (below), and control them from that one app.
Matter and Thread, in plain English
- Matter is a common language for smart-home devices. A Matter-certified plug or sensor works with Apple Home, Google Home, Alexa and SmartThings, so you’re less locked in. Many Matter devices can be added to more than one platform at once. Look for the Matter logo on the box.
- Thread is a low-power wireless network many Matter devices use instead of Wi-Fi. Thread devices form a mesh, with each mains-powered device helping relay signals, and battery sensors can last for a long time. Thread needs a border router, which is built into many recent smart speakers, displays and streaming boxes from the big platforms. Check your device’s spec sheet for “Thread border router.”
- Older standards such as Zigbee and Z-Wave still work well, but need a compatible hub.
The first five devices
- Smart plugs. The cheapest, lowest-risk start. Put a lamp, a fan or holiday lights on a schedule. Only use them within their rated load. Don’t use them for space heaters unless the plug’s maker specifically allows it.
- Leak sensors under sinks, behind the washer and next to the water heater. Of everything here, they’re the most likely to pay for themselves.
- Motion-activated or scheduled lighting for the porch, hallway or stairs.
- A smart thermostat, if your system supports one. Check compatibility first. Many need a “C-wire” for constant power, and the maker’s website usually has a compatibility checker. If you’re not comfortable with low-voltage wiring, have an HVAC technician install it.
- A video doorbell or smart lock, if they solve a real problem for you. Read the privacy section below first, and check your door’s dimensions before buying a lock.
Smart bulbs vs. smart switches
Smart bulbs are easy to install, but if someone flips the wall switch off, the bulb loses power and goes offline. In rooms where other people use the wall switch, a smart switch is usually better: it controls whatever bulbs are already there, and the wall switch keeps working. Many smart switches need a neutral wire in the switch box. Turn off the breaker before opening a switch box, and hire an electrician if you’re not confident. Use smart bulbs where you want color or dimming in lamps, or alongside wireless remotes mounted over the switch.
Network tips
- Many Wi-Fi smart devices use only the 2.4 GHz band. If one won’t set up, see our mesh Wi-Fi troubleshooting tips.
- Consider putting smart-home gadgets on a guest or separate “IoT” network so they’re kept apart from your computers. Some devices need to be on the same network as your phone for setup or local control, so test as you go.
- Name every device by room and purpose (“Kitchen – counter lights”) as you add it. You’ll thank yourself at device number 30.
- Keep a simple list of each device, its model and its app. A notebook or spreadsheet is fine.
Privacy and security
- Buy from makers with a security-update track record, and turn on automatic firmware updates.
- Prefer devices that work locally (Matter and Thread devices generally do), so your lights still work when the internet is down.
- Cameras: think carefully about indoor cameras, especially in bedrooms and bathrooms. Check whether video goes to the cloud or stays on local storage, and turn on two-factor authentication for camera accounts.
- Use a unique, strong password for every smart-home account, stored in a password manager.
- Before selling or giving away a device, factory-reset it and remove it from your account.
Routines worth setting up
- Sunset: porch and living-room lamps on at sunset, off at bedtime.
- Leak alert: a leak sensor sends a phone notification to everyone in the household.
- Away: when the last person leaves, lights off and thermostat set back.
- Good night: one button or voice command turns off downstairs lights and locks the door.
What to buy first
- A two- or four-pack of Matter-certified smart plugs. Example: Matter smart plug 4-pack
- Battery leak sensors that work with your platform. Example: water leak sensor 3-pack
- If you have none yet, a smart speaker or display that doubles as a Thread border router for your platform. Example: smart display with Thread border router