Droplet is an ultrasonic smart home device that monitors an entire home’s water usage from a single point. Easily clamping onto a home’s main water line, setup takes only minutes and requires no pipe cutting, tools, or complex installation. High-fidelity sensors measure real-time water flow up to 50 times per second, precisely tracking consumption, instantly detecting leaks, and identifying hidden or unexpected usage. Intelligent pattern recognition identifies water usage by individual fixtures and appliances such as toilets, showers, and faucets—helping people reduce water bills by up to 30%. Droplet transforms complex water data into accessible insights, empowering people to make informed decisions for sustainable water use, safeguarding homes, and protecting our most precious resource.