Gutsi

Gutsi is a UK company that makes a smart gut health tracker for the toilet. The device clips inside the toilet bowl and uses on-device sensing to passively track stool consistency, bathroom timing and hydration cues, with results shown as private insights in the Gutsi app. The company positions it as a wellness tracker rather than a medical device, and also offers a multi-device family option and a seven-day reset programme. Gutsi was founded by Matt Hay, who started it after his own gut health experiences and the sale of a previous company. The tracker is stocked by retailers including Selfridges and KaDeWe.