Best Smart Home Devices Under $100 in 2026
You don't need to spend thousands to build a useful smart home. The most impactful smart home additions are also the cheapest: a smart plug that learns your routines, a budget security camera for peace of mind, and a smart speaker that controls everything with your voice. These picks under $100 are where most people should start.
Updated June 22, 2026
Amazon Echo Dot (5th Gen)
Echo Dot 5th Gen at $49 is the best starting point for a smart home: Alexa built in, improved bass radiator for better music than previous generations, and the ability to control any Alexa-compatible device by voice. Buy two and place them in different rooms for whole-home voice control without the expense of full-size Echo speakers.
What to Look for When Buying
Start with a voice assistant hub. A smart plug or camera is most useful when it's controllable by voice — 'Alexa, turn off the living room lamp' is genuinely more convenient than opening an app. Buy a $49 Echo Dot before adding other devices. Once you're in the Alexa or Google Home ecosystem, every subsequent device purchase benefits from the voice control infrastructure already in place.
Smart plug compatibility: most smart plugs work with standard 2.4GHz Wi-Fi without a hub. Some older smart plug standards (Zigbee, Z-Wave) require a separate hub, which adds complexity and cost. For beginners, stick to Wi-Fi plugs from Kasa, Wemo, or Amazon — they pair directly with your router and smart speaker.
Budget camera trade-offs: cameras under $50 often require a paid cloud storage plan for video history. Wyze's Cam Plus at $2/month is the most affordable cloud plan; without it, you only get live view and a 12-second clip. Eufy cameras store clips locally on a microSD card with no subscription. For 2–3 cameras, Wyze's total cost over 2 years (camera + subscription) is lower than Eufy's HomeBase hub requirement.
Smart thermostat compatibility: not all HVAC systems are compatible with smart thermostats. Before buying, check whether your system has a C-wire (common wire) — most smart thermostats require it. Amazon Smart Thermostat includes a Power Adapter if you don't have a C-wire, making it compatible with a broader range of systems than Nest or ecobee. Use the thermostat compatibility checker on each manufacturer's website before purchasing.
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