7 Smart Home Devices That Are Actually Worth Buying in 2024

TL;DR: The smart home devices worth buying are the ones that solve a real problem: a smart thermostat can cut heating and cooling costs by 10-15%, a $30 water leak sensor can catch a slow pipe leak before it causes thousands in damage, and a video doorbell adds real security for under $150. Skip smart devices that just replace a switch you already touch fine — spend on the ones that watch for problems while you're not home.

_Last reviewed: July 2026 · 7 min read_

Half the smart home gadgets on store shelves solve problems you didn't have. The other half quietly save you money and headaches every single month. Here's which is which, based on what actually pays off for owner-operators managing one property or several.

Okoniq Property Hub logs which smart devices you've installed at each property and when their batteries or filters need attention, so nothing gets forgotten between visits.

Which smart home devices actually save you money?

Three devices pay for themselves within a year: a smart thermostat, a water leak sensor, and smart plugs on always-on appliances.

A smart thermostat like a Nest or Ecobee runs $130 to $250 installed and typically cuts heating and cooling bills by 10-15% by learning your schedule and adjusting when no one's home. On a $2,000 annual energy bill, that's $200-$300 back every year, which means the device pays for itself in under 12 months.

Water leak sensors are the best dollar-for-dollar buy on this list. A single sensor costs $20-$40 and sits near a water heater, under a sink, or by a washing machine. It sends a phone alert the moment it detects moisture, which matters because slow leaks are often invisible until the damage is done — see the signs described in slab leaks under your floor and the common causes behind water pooling under a water heater. Catching a leak in week one instead of month three can be the difference between a $50 fix and a $5,000 remediation job.

Smart plugs ($10-$15 each) let you schedule or remotely kill power to space heaters, window AC units, or holiday lighting. That alone can shave $50-$100 a year off a typical utility bill for owners who tend to leave things running.

Which smart devices improve security without adding complexity?

Video doorbells and smart locks give the most security for the least ongoing effort. A video doorbell costs $60-$200 and lets you see who's at the door from anywhere, which matters for rental turnovers, package deliveries, and simply knowing who showed up while you were out.

Smart locks ($150-$250) remove the need to cut and track physical keys for every tenant or family member. You can issue a temporary code for a contractor, revoke it the same day, and never worry about a lost key compromising the property. For landlords managing multiple units, that alone can save an hour of locksmith calls a year.

A basic outdoor camera rounds out the trio. Look for one with local storage or a low-cost cloud plan (under $5/month) rather than a subscription that creeps toward $20/month over a couple of years.

Which smart devices are more gimmick than gain?

Smart light bulbs, smart faucets, and smart mirrors are the three most overhyped categories. A smart bulb runs $15-$50 per fixture and mostly replaces a light switch you already reach fine — the convenience rarely matches the cost across a whole house.

| Device | Real Problem Solved | Typical Cost | Worth It? | |---|---|---|---| | Smart thermostat | Wasted heating/cooling | $130-$250 | Yes | | Water leak sensor | Invisible slow leaks | $20-$40 | Yes | | Smart bulbs (whole house) | Reaching a switch | $15-$50/bulb | Usually not | | Smart lock | Key management | $150-$250 | Yes | | Smart faucet | Turning a handle | $200-$400 | Usually not |

Smart faucets in particular add a battery-powered motor to something a hand does fine, and repairs on a broken sensor faucet often cost more than a standard fixture replacement. Skip these unless there's a specific accessibility need in the household.

What do you need to check before installing any smart device?

Most smart devices need a grounded three-prong outlet and stable wifi, and skipping this check is the most common reason installs fail. Many smart plugs, thermostats, and video doorbells assume a grounded circuit, and if your home still has two-prong outlets, you'll want to review how to upgrade 2-prong outlets to 3-prong safely before buying anything that plugs directly into the wall.

Homes with older wiring have a second issue: total available power. Adding several smart devices, especially ones that draw continuous standby power, matters more in a home still running on 100-amp service. If you're not sure what you have, 100 vs 200 amp service explains how to check your panel and whether an upgrade makes sense before you add a smart home hub, cameras, and multiple thermostats to the same circuit.

Homes with older wiring types like knob-and-tube should have an electrician confirm compatibility before installing any smart switch or dimmer, since these devices often require a neutral wire that older wiring doesn't have.

How much should you budget for a full smart home setup?

A reasonable starter budget is $400-$700 for the core four: thermostat, two leak sensors, a video doorbell, and one smart lock. That covers the devices with the clearest payback and the least ongoing subscription cost. Adding cameras or a full lighting system can push the total past $1,000, so it's worth installing the money-saving devices first and adding convenience items later if the budget allows.

FAQ

Do smart home devices increase home value?

A smart thermostat and video doorbell are commonly cited by real estate agents as small upgrades buyers notice, but neither typically adds more than a few hundred dollars to an appraisal. Their real value is the monthly savings and security while you own the home.

Do smart devices work if the internet goes down?

Most lose remote access and app notifications during an outage, though many smart thermostats and locks still function locally using their physical controls or a keypad. Leak sensors that rely on wifi to send alerts won't notify you until the connection is restored, which is worth knowing before relying on one as your only leak protection.

Are subscription fees worth it for smart cameras?

Only if you need cloud video history beyond a few hours, since most base camera hardware works fine without a plan for live viewing and instant alerts. A $5/month plan for 30 days of recorded footage is reasonable; anything over $15/month per camera adds up fast across multiple devices.

How long do smart home devices actually last?

Most smart thermostats and locks are rated for 5-10 years, while battery-powered sensors and doorbells typically need battery replacement every 6-12 months and full replacement within 3-5 years as software support ends.

Can renters install smart home devices without landlord approval?

Battery-powered and plug-in devices like leak sensors and smart plugs usually need no approval, but hardwired devices like thermostats, locks, and doorbells that require rewiring should be cleared with the landlord first, since removing them incorrectly at move-out can damage wiring or the door strike plate.

This is educational information, not electrical or financial advice. Call a licensed electrician before installing any hardwired smart device on older wiring, and consult a professional if you're unsure about your home's panel capacity.