Zomato founder Deepinder Goyal has announced six colour options for the launch edition of Temple, an experimental health device designed to sit on the side of the head and track brain blood flow. Goyal shared photos of the hardware variants online, stating that pre-orders are expected to open next week once the team confirms a few final details. The limited launch edition will give priority booking to users on the early-access waitlist, with initial shipments targeted before the close of 2026.
Key Takeaways
- Temple will debut in six finishes: True Gold, Rose Gold, Black Mirror, Real Jade, Deep Blue, and Purple Funk.
- Pre-orders are slated to open next week, with early-access waitlist members receiving priority.
- The device attaches to the user’s temple region, between the forehead and the ear, using dedicated sensors.
- Temple continuously monitors cerebral blood flow, blood volume changes, and a brain metric termed Entropy.
- Deliveries for early buyers are scheduled to begin before the end of 2026.
New Colours for the Launch Edition
Until now, public appearances of Temple showed only a single gold tone. Goyal confirmed that the initial consumer batch will offer six distinct shades: True Gold, Rose Gold, Black Mirror, Real Jade, Deep Blue, and Purple Funk.
The hardware itself has shrunk compared to early laboratory models. Goyal earlier noted that current prototypes are less than half the size of versions seen earlier this year. Indian athletes, including badminton player PV Sindhu, have already tested the device during practice sessions and competitive matches.
What the Temple Device Measures
Most commercial wearables, such as smartwatches and fitness rings, focus on heart rate, wrist skin temperature, and step counts. Temple takes a different path by tracking brain physiology directly from the head.
The gadget rests on the temporal bone, where thin skin and blood vessels allow optical sensors to capture hemodynamic signals. Using proprietary tech called BrainFlow, the sensor tracks:
- Cerebral Blood Flow: It tracks how blood circulates through cranial tissue over time.
- Brain Blood Volume: The device gauges changes in blood volume beyond surface scalp layers.
- Entropy and Oxygenation: The onboard software processes vascular fluctuations to estimate brain metabolic activity and tissue oxygen levels.
Goyal collaborated with Indian Institute of Science researchers Dr Divya Gulati and Dr Sanchit Gupta, SISSA Trieste researcher Dr Yukti Chopra, and IIT Bombay researcher Nitish Kumar to build BrainFlow. A preprint study evaluated the device against time-domain near-infrared spectroscopy (TD-NIRS) on 60 volunteers, though formal peer-reviewed medical publications remain pending.
Pricing and Availability
Pre-orders are expected to open next week on the official website. Goyal has not shared the official retail price yet, though earlier hints pointed to a figure near 1,000 dollars, or roughly 1 lakh rupees. The firm intends to start dispatching units before January 2027.
Frequently Asked Questions
Q1. What colours does the Temple wearable come in?
A1. The launch edition comes in True Gold, Rose Gold, Black Mirror, Real Jade, Deep Blue, and Purple Funk.
Q2. Where do you wear the Temple device on your body?
A2. You place the lightweight sensor on the temple region of your head, between your eyebrow line and your ear.
Q3. What does Temple measure that smartwatches do not?
A3. Unlike regular fitness trackers that track pulse at the wrist, Temple measures continuous cerebral blood flow, cranial blood volume, and brain Entropy.
Q4. When will Temple start shipping to buyers in India?
A4. Goyal has stated that launch edition units will begin shipping before the end of 2026.
Q5. How much will the Temple device cost?
A5. The final price has not been published yet, though Goyal previously indicated an expected price tag around 1 lakh rupees.
