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This is a checklist, not a ranking. Each section says what actually decides whether a thing will work in your house — usually a specification that is not on the front of the box — and then opens the current listings on Amazon so you can choose.
No prices, and no star ratings. Prices move weekly and a page of stale numbers is worse than none. We have not tested this hardware, so we do not score it.
Smart lighting
Smart bulbs
What matters: whether the bulb needs a bridge or talks straight to your phone, and whether it supports Matter — which decides how much of it keeps working when your internet does not. Then check the white range: a bulb sold as “tunable white” changes colour temperature, a plain one does not, and that adjustment is more useful day to day than sixteen million colours. The full reasoning is in our guide to choosing a smart lighting system.
The mistake that costs people a bulb: putting one on a wall dimmer. A smart bulb dims itself and needs constant full mains voltage. Why that combination buzzes.
Matter-compatible bulbs Hue starter kits with a bridge
Wall controls that work with smart bulbs
What matters: the control must leave the mains supply alone — either a module behind the existing switch that keeps the bulb powered, or a wireless control not wired into the circuit at all. A traditional dimmer, including one sold as “LED compatible”, is the wrong tool.
In-wall modules Wireless dimmer controls
Smart switches for ordinary fixtures
What matters: whether your back box has a neutral wire. Most smart switches need one, and older US homes often ran the switch loop without it. If two switches control the same light, you also need a model that supports 3-way wiring and usually a companion switch.
Cameras and security
Indoor and outdoor cameras
What matters: where the footage goes. A camera that records to a microSD card keeps working without a subscription and barely touches your upload; one that records only to the cloud stops being useful the day you stop paying. Then decide wired or battery: battery cameras are easy to place, wired ones can record continuously.
Continuous cloud recording is a bandwidth decision, not an electricity one. We measured both in what a Nest camera actually uses — the power is a rounding error, the upload is not.
Cameras with local storage Nest cameras
Video doorbells
What matters: whether it runs off your existing doorbell wiring. Wired models expect a transformer in roughly the 16–24 V AC range, and plenty of older US installations are below that — the part people discover after buying. Battery models sidestep it but need charging. Check too whether the model keeps your mechanical chime ringing.
Wired doorbells Battery doorbells
Smart locks
What matters: whether it replaces the whole deadbolt or only the thumbturn inside. A retrofit leaves your key, cylinder and outside hardware alone, which matters if you rent. A full replacement gives you a keypad outside. Either way, check there is a physical key override and what happens when the batteries die.
Energy monitoring
Smart plugs that actually measure
What matters: most smart plugs switch but do not measure. If you want the number, the listing has to say energy monitoring explicitly — “smart” does not imply it. Check the current rating too: many are rated well below the 15 A a US outlet can deliver, which rules them out for heaters and kettles.
This is the cheap way to settle an argument about what a device costs to run — and how you would check our camera power figures on your own hardware.
Plugs with energy monitoring Plug-in power meters
Whole-home monitors
What matters: these clamp around the incoming conductors inside your panel, so fitting one is an electrician’s job in most places. What you get is every circuit at once instead of one appliance — worth it if you are chasing a standing load you cannot find.
Hubs and bridges
What matters: a hub earns its place if it gives you local control when the internet is down, or if it bridges a radio your phone does not speak.
And one point the marketing does not make clear: Matter is a common language, not a radio. A Matter device still runs over Wi-Fi or Thread, and Thread devices need a border router in the house before they can reach anything. The distinction is set out in our smart lighting guide.
Routers and networking
What matters: not the advertised device count. Whether it can broadcast a separate 2.4 GHz network, because most smart devices are 2.4 GHz only and band steering is the usual reason pairing fails. Whether the guest network covers 2.4 GHz and offers client isolation, which is what keeps a compromised device away from your laptop. And whether it supports WPA3 while still allowing WPA2 AES for older hardware.
Both points are covered properly in what to look for in a router and how to secure a smart home.
Voice and speakers
What matters: which assistant the rest of your house already speaks, and whether the speaker has a microphone switch that physically cuts the mic rather than asking the software to ignore it. Sound quality is the easiest of the three to judge in a shop and the least important.
Before you build a routine around voice: Amazon closed the interface that let outside apps read and write Alexa’s shopping list in July 2024, so a dedicated list app no longer syncs with it. What still works is in the Alexa shopping list, and what changed.
Living room
What matters: a TV browser is far easier to use with a pointer than with a remote, and most sets will pair an ordinary Bluetooth mouse with no extra hardware. It is the single change that makes the built-in browser tolerable — the pairing path is in our Samsung TV browser guide, which also covers locking the browser down if that is what you actually want.
What is not here
No robot vacuums, no thermostats, no speakers we have not used. We list categories we have looked into properly, and the page grows as the site does. If something is missing it is because we have nothing useful to say about it yet, which is a better reason than the alternative.
As an Amazon Associate, Modern Home Grid earns from qualifying purchases — at no extra cost to you. Full detail on the affiliate disclosure page.