Imagine sitting on your toilet and getting a personalized health report sent straight to your phone. No clinic visit, no awkward conversations. Just data, insight, and… well, your poop. This isn’t science fiction anymore. Toilets in Japan have long been known for their innovation: heated seats, bidet functions, even calming sounds to mask noise. But starting this August, Japanese toilet giant Toto is rolling out the country’s first home-use toilet with an integrated stool scanner.
Toto’s newest high-end toilet models, the Neorest LS-W and AS-W, will feature a built-in “stool scanner.” This sensor, placed near the bidet nozzle, works almost like a barcode scanner. When you sit down, the lid opens and the scanner activates. It shines a light to analyze the stool as it drops. It measures things like shape, hardness, color, and amount, then sends that data to a connected smartphone app.
a visualization of the scanner analyzing stool as it falls
The sensor, placed near the bidet nozzle, scans the stool as it drops, analyzing its shape, color, consistency, and amount. The results are sent to a smartphone app, where users can view trends on a calendar and receive lifestyle advice. The goal is to help people better understand their gut health — something 76% of users already observe but rarely track digitally.
the scanner analyzes the stool based on multiple factors including hardness, amount and color
The LS-W will cost about 542,300 yen (around $3,650), and the AS-W will go for 493,900 yen (roughly $3,330). Toto hopes to sell over 7,000 units annually by the third year.
For decades, Toto has been a leader in making bathrooms more comfortable and hygienic. With this new step into health tech, it seems the future of wellness might just begin in the toilet.
a display model shows how the scanner lid activates and analyzes stool as it falls
