Indian badminton champion PV Sindhu has given a significant public endorsement to Zomato founder Deepinder Goyal's new venture, Temple, a head-worn wearable technology. Sindhu described the device as a “game changer” and revealed she has been actively using it herself, working closely with Goyal's team to identify meaningful performance metrics for athletes.
Temple Wearable: A New Approach to Health Tracking
The announcement coincides with Temple opening pre-orders for its initial batch of devices. Unlike conventional wrist-worn smartwatches, Temple is a compact, head-worn device that attaches to the skin near the temple using adhesive patches called Grips. It utilizes optical sensors to monitor physiological signals related to cerebral blood flow, interpreted by its proprietary BrainFlow technology.
The device also generates an Entropy score, ranging from 1 to 250, which indicates physiological strain influenced by factors such as exercise, sleep, stress, and caffeine. This aims to provide athletes with deeper insights into their body's responses to physical and mental demands.
Pre-orders and Accuracy Claims
Pre-orders for the Temple wearable are currently available through its official website and mobile app. Early access listings suggest a price point of approximately ₹85,000, which includes a lifetime software subscription. Deliveries for this made-to-order first batch are anticipated within roughly three months.
Deepinder Goyal has also shared results from an internal study claiming Temple delivers more accurate heart rate readings compared to leading wearables, including the Apple Watch Series 12, WHOOP MG, Fitbit Air, Garmin FR970, and Oura Ring 5. The study, which used a Polar H10 chest strap as a reference, indicated Temple recorded the lowest heart rate measurement error across various tested conditions, even during high-intensity exercise. Goyal has invited further independent research to validate these findings.