Smart home components
A smart home is built from a network (Wi-Fi and often a Thread or Zigbee mesh), a hub or controller, and devices: switches and plugs, sensors, locks, cameras, thermostats and shades. The network and the hub decide whether everything works together; the devices are the easy part to change later.
The network comes first. Smart home reliability problems are network problems far more often than device problems. Solid Wi-Fi coverage everywhere you will put a device is the prerequisite. Many low-power devices also use Thread or Zigbee mesh networks, which need a border router or hub.
Hubs and controllers. A hub bridges different radio protocols and runs automations locally so they keep working when your internet goes down. Local control is worth prioritizing - it is the difference between a house that works during an outage and one that does not.
Switches and plugs. Smart plugs are the cheapest entry point and require no wiring. Smart in-wall switches are better long term because the wall control still works normally for guests, but they are line-voltage work and many require a neutral wire that older switch boxes lack. Have an electrician confirm before you buy.
Sensors, locks, cameras and thermostats. Contact, motion, water-leak and temperature sensors are cheap and do the most useful automation work - a leak sensor under the water heater is arguably the best value in the whole category. Locks and cameras raise privacy and security questions worth thinking about separately.
Choosing smart home components
The judgement calls that decide the bill, before anyone quotes you.
- Fix the network before buying devices Mesh Wi-Fi with coverage in the garage, basement and yard prevents most of the frustration people blame on devices.
- Prefer devices with local control Automations that run on a local hub keep working when the internet or the manufacturer's cloud goes down.
- Check the neutral wire before buying smart switches Many smart switches need one and older boxes often lack it. This is an electrician question, not a store question.
- Buy leak and smoke sensors early They are inexpensive and are the devices most likely to prevent an actual expensive event.
- Check the standard, not just the brand Matter and Thread support make a device far more likely to still work if you change ecosystems later.
All smart home components
Smart Switches
Smart Dimmers
Smart Plugs
Smart Hubs
Smart Breakers
Energy Monitors
Matter Controllers
Zigbee Hub
Z-Wave Hub
PoE Switches
Structured Media Panel
Whole Home Surge Protector
Where these figures come from
Sources last checked
- ENERGY STAR - Smart Thermostats FAQ (savings figures) · retrieved 2026-07-25
- CE Pro - Connectivity Standards Alliance Releases Matter 1.5 · retrieved 2026-07-25
- Angi - How Much Does a Smart Home System Cost? [2026 Data] · retrieved 2026-07-25
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