Smart home devices available in the United States include voice assistants (e.g., Amazon Alexa, Google Home), security systems (e.g., Ring, ADT), lighting controls (e.g., Philips Hue, Lutron), thermostats (e.g., Nest, Ecobee), entertainment systems (e.g., Apple TV, Samsung SmartThings), and energy monitors (e.g., Tesla Powerwall). These devices integrate with platforms like Apple HomeKit, Google Home Assistant, and Amazon Alexa for centralized control.

The U.S. smart home market is driven by technological advancements and consumer demand for convenience and energy efficiency. According to Statista, the market was valued at $135.6 billion in 2023, with a compound annual growth rate (CAGR) of 12.3% from 2023 to 2030. Voice assistants dominate adoption, with Parks Associates reporting that 54 million U.S. households use voice-activated devices, up from 30 million in 2019. Security systems are the most popular category, with 40% of U.S. households using smart cameras or alarms, per a 2023 survey by SafeWise. Energy-efficient devices like smart thermostats and LED lighting account for 25% of smart home sales, as noted by the U.S. Department of Energy, which estimates that Nest thermostats can reduce heating and cooling costs by 10–12%. The COVID-19 pandemic accelerated adoption, with McKinsey data showing a 30% surge in smart home purchases in 2020. Integration with subscription-based services (e.g., Ring Protect, ADT Pulse) further sustains growth, projected to reach $200 billion by 2027. These trends reflect a shift toward interconnected, automated living, supported by falling hardware costs and improved AI-driven user experiences.