How to Start a Smart Home

Most people start a smart home backwards. They buy a device they saw on sale, discover it needs a hub, buy the wrong hub, then discover the hub does not support the next device they want.

This plan reverses that. You make two decisions first — which assistant and which protocol — and then buy devices that fit them. Thirty days is enough to go from nothing to a home with a handful of automations you actually keep.

Step 1: Choose your assistant before your first device

Your assistant is the app you will live in. Every routine, every device name and every household member's access runs through it, and switching later means rebuilding all of it. So decide first:

• iPhone household? Apple Home is the smoothest option, and it keeps most processing local. You need an Apple TV or HomePod as a home hub for remote access and automations.
• Android or mixed household? Google Home or Alexa. Alexa has the widest device support; Google Home has the better voice search and the tighter integration with Google apps.
• Not sure? Buy Matter devices. They can be added to more than one ecosystem at once, which buys you time to decide.

If other people live with you, ask them now. A smart home that only one person can operate is a smart home that generates complaints.

Step 2: Buy two smart plugs and live with them for a week

Before spending real money, buy two smart plugs and put them on things you already use — a lamp and a holiday-light timer, for example. This costs very little and tells you three things: whether you actually open the app, whether voice control fits your household, and whether your Wi-Fi is reliable where you need it.

If you never touch them after a week, you have learned something valuable for the price of a takeaway meal. If you find yourself adding schedules, keep going.

Step 3: Fix your lighting next, and decide bulbs or switches

Lighting is the highest-value second step because it is visible, reversible and cheap to expand. Make one decision per fixture:

• Controlled by a wall switch? Use a smart switch or dimmer. Everyone in the house can use it, and it works without an app. Check for a neutral wire before buying.
• Plugged into an outlet? Use a smart bulb or a smart plug.
• Renting? Bulbs, strips and plugs only. Nothing that requires opening a switch plate.

Start with the rooms you use most, and resist the urge to buy twelve bulbs at once. Two rooms done properly beats six rooms half-done.

Step 4: Add one sensor and one automation

This is the step that turns a remote control into a smart home. Pick one:

• A contact sensor on the front door with an alert if it stays open for two minutes.
• A motion sensor in a hallway that turns lights on at low brightness after 10pm.
• A water leak sensor near the water heater or washing machine. This is the highest-value sensor you can buy and the one most people skip.

Keep the automation simple. One trigger, one action, one notification. Complex automations are the ones you disable a month later.

Step 5: Handle the two categories that need planning

Locks. Measure your door before buying: backset, cross bore and thickness. Renters should use a retrofit lock that keeps the existing deadbolt. See our smart lock guide.

Cameras and doorbells. Decide where recordings will live before you pick hardware, because the subscription is usually the largest lifetime cost. See our camera guide.

Both categories are worth doing once, properly, rather than buying twice.

Step 6: Name things properly and write it down

Nothing makes a smart home age worse than device names like "Plug 3". Rename everything the day you add it, using the words you would actually say out loud: "Living room lamp", "Front door lock", "Basement leak sensor".

Then write down a short list: which hub, which app, which account, which Wi-Fi network, and the login for anything that needed one. Six months from now, when something stops responding, that list is worth more than any review.

Products mentioned in this guide

Products referenced in this guide, shown with the manufacturer's own photography. We do not publish prices or star ratings — both change faster than any article can be kept accurate.

Frequently asked questions

Note: Compatibility and feature details on this page come from manufacturer documentation and published specifications at the time of writing. Support changes with firmware, so confirm the current details with the manufacturer before you buy.