Indian Billionaire’s $900 Brain Tracker Sparks Debate Among Doctors

A wearable device called Temple, developed by Indian billionaire entrepreneur Deepinder Goyal, has sparked controversy among medical professionals over its claims of monitoring blood flow to the brain. Priced at around $900, the lightweight device attaches to the side of the head and features technology designed to track brain blood circulation, body temperature regulation and other health-related measurements. It has also gained attention after being worn by prominent Indian athletes, including cricket captain Shubman Gill and badminton star P.V. Sindhu.

Several Indian doctors have questioned the scientific evidence supporting the device’s claims, arguing that its capabilities have not been sufficiently validated through peer-reviewed research. Some medical experts have called for regulatory scrutiny, with concerns that consumers could mistake its wellness features for clinically approved medical measurements. Goyal, however, has defended the product, describing it as a fitness and wellness tracker rather than a medical device. Temple has acknowledged that some of its newer metrics are based on emerging science and said further research is planned.

The controversy comes amid growing global scrutiny of wearable technology and the distinction between fitness trackers and medical devices. Similar questions have been raised over health-monitoring features offered by companies such as Apple and Whoop. Goyal, who co-founded Eternal, the parent company of Zomato, stepped down as its CEO earlier this year to focus on Temple. The company has reportedly received orders from more than 62 countries since November 1 and raised $54 million in February at a valuation of approximately $190 million.

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