Indian billionaire, doctors spar over $900 brain blood-flow tracker Temple

A tiny, $900 wearable device being developed by an Indian billionaire entrepreneur and showcased by some ‌of the country’s top sportspersons has sparked criticism from doctors who say its claims ​of tracking blood flow to the brain are exaggerated. The Temple device is less ⁠than 1 inch (2.54 cm) wide and weighs under 2 grams (0.07 oz). It sticks to the side of the head between the forehead and the ear, or the temple area.

Promotional materials for the device, developed by Deepinder Goyal, ‌say that its BrainFlow feature shows how well the brain is being supplied with blood in real time and its Entropy feature can detect how hard the ‌body works to shed heat. Does the Temple wearable reveal useful information about brain health? storyline 1 It can also measure thermal, immune, digestive, cognitive and emotional readings ‌that ⁠help to transform how a person regulates their health, they say.

Priced at 85,000 ⁠rupees ($907), the device comes in six colours. India’s cricket captain Shubman Gill and Olympic medal-winning badminton player P.V. Sindhu have worn it.