Throne One places a camera beneath the rim of a toilet and turns each visit into a health record. The device costs $399.99, followed by a $5.99 monthly membership after three free months. Optical sensors and AI classify stool consistency, urine color, hydration, urinary flow and bathroom habits. An app displays scores and trends, while an AI coach offers basic suggestions about food or water. The device uses a nearby phone to identify its user; visits elsewhere can be entered manually. Throne Science calls it a general wellness product and says it does not diagnose, treat or prevent disease. Gastroenterologists interviewed by Business Insider saw value in an automatic diary, especially when patients change medication or manage digestive problems.

The difficulty begins after the measurement. Visible blood might come from hemorrhoids, menstruation, inflammatory bowel disease or cancer, and current devices cannot identify the cause. Digestion also changes with stress, sleep, medication, travel and diet. Kyle Staller of Massachusetts General Hospital warned that healthy users could become preoccupied with ordinary variation. A compulsory bodily act now becomes a recurring medical check that requires no effort. The subscription keeps the record active, and every deviation can return as an app event demanding interpretation. The purchase provides memory without certainty. Throne's camera may document every visit, but when a score changes, the explanation still belongs to a clinician or to a worried user.