Zomato co-founder Deepinder Goyal has unveiled a redesigned version of Temple, the brain-monitoring wearable being developed by his health and longevity venture. Goyal said the new hardware is less than half the size of earlier prototypes and described it as the world’s smallest wearable by volume. The device is designed to sit on the side of the forehead and monitor signals linked to brain activity, including cerebral blood flow and oxygenation.
The redesign represents a significant hardware step for Temple as Goyal prepares to move the project closer to commercial availability. The company says limited launch-edition pre-orders will open soon, with initial shipments expected before the end of 2026. The device has also attracted attention from athletes, with Indian badminton star PV Sindhu recently seen wearing Temple during the 2026 BWF World Championships in New Delhi.
Temple Gets A Major Hardware Redesign
Temple is unlike conventional wearables such as smartwatches and fitness bands. Instead of sitting on the wrist, the device attaches to the temple region on the side of the forehead, placing its sensors closer to the brain and the blood vessels that the company wants to study.
According to Goyal’s latest announcement, the redesigned hardware has been reduced to less than half the size of earlier prototypes. He also described the new version as being exponentially more powerful, using the phrase “most^10 powerful” when announcing the engineering milestone.
The company is positioning the reduction in size as an important step toward making the wearable practical for everyday use.
| Temple Development | Latest Detail |
|---|---|
| Device name | Temple |
| Developer | Deepinder Goyal’s Temple venture |
| Wear location | Side of the forehead/temple |
| New hardware size | Less than half the size of earlier prototypes |
| Size claim | Smallest wearable by volume |
| Main focus | Brain and physiological monitoring |
| Initial shipments | Before end of 2026 |
| Pre-orders | Limited launch edition to open soon |
| Athlete seen using it | PV Sindhu |
What Is Temple Designed To Measure?
Temple is being developed as a wearable focused on physiological signals associated with brain function rather than conventional fitness metrics alone.
The device is designed to monitor signals related to cerebral blood flow and oxygenation. Cerebral blood flow refers to the movement of blood through the brain, while oxygenation provides information about how oxygen is being delivered to tissue.
The company has presented Temple as a tool for understanding how the body and brain respond to different activities and conditions.
Brain Monitoring Instead Of Traditional Fitness Tracking
Most mainstream wearables focus on metrics such as heart rate, steps, calories, sleep and exercise.
Temple takes a different approach by placing the sensor close to the head.
| Feature | Traditional Fitness Wearables | Temple |
|---|---|---|
| Typical placement | Wrist, finger | Temple/forehead |
| Primary focus | Fitness and general health | Brain-related physiological signals |
| Heart-rate tracking | Common | Not the primary focus |
| Brain-related monitoring | Limited | Core focus |
| Cerebral blood-flow signals | Generally unavailable | Designed to monitor |
| Oxygenation-related signals | Limited depending on device | Designed to monitor |
The difference in positioning is central to Temple’s design philosophy. Rather than relying primarily on measurements from the wrist and using them as indirect indicators of broader physiological conditions, Temple is being developed around signals that can be measured closer to the brain.
Temple Has Been Linked To Athletic Performance
The device has received considerable attention because of its use by athletes.
Indian badminton star PV Sindhu was recently seen wearing Temple while competing at the BWF World Championships 2026 in New Delhi. Her appearance with the device has brought additional visibility to Goyal’s project, particularly because elite athletes are among the potential early users for advanced physiological monitoring technology.
Temple’s data could potentially be useful for understanding training load, recovery, sleep and focus.
| Potential Use Case | Why It Could Matter |
|---|---|
| Training | Understanding physiological response to intense activity |
| Recovery | Tracking changes after physical exertion |
| Sleep | Studying physiological conditions associated with rest |
| Focus | Exploring changes during periods of concentration |
| Performance | Providing additional physiological data to athletes |
| Wellness | Helping users understand responses to daily activities |
The company has not established that Temple can diagnose medical conditions, and its current positioning is centered on health and wellness rather than replacing clinical medical equipment.
Goyal’s Larger Bet On Health Technology
Temple is part of Deepinder Goyal’s broader move into technology and research beyond food delivery.
Goyal stepped away from his role as CEO of Eternal, Zomato’s parent company, earlier in 2026 and has increasingly focused on projects involving health technology and other deep-tech areas.
Temple has attracted significant investor interest. TechCrunch reported in February that the startup had raised $54 million in a friends-and-family round at a post-money valuation of approximately $190 million.
| Temple Funding & Business Data | Figure |
|---|---|
| Reported friends-and-family funding | $54 million |
| Reported post-money valuation | About $190 million |
| Approximate funding as share of valuation | 28% |
| Initial device cohort previously discussed | 100 devices |
| Applications previously reported | More than 100,000 |
The funding and early interest indicate that Temple is being treated as more than a small personal research project, although the technology remains at an early stage compared with established consumer wearables.
More Than 100,000 People Applied For Early Devices
Interest in Temple has also been unusually high for a product that had not yet entered mass commercial distribution.
Goyal said the company had received more than 100,000 applications for an initial batch of 100 introductory Temple devices. That translates to roughly 1,000 applications for every device in the initial cohort.
| Early Temple Interest | Figure |
|---|---|
| Applications | 100,000+ |
| Initial introductory devices | 100 |
| Applications per device | 1,000+ |
| Approximate initial allocation rate | About 0.1% |
The figures demonstrate strong curiosity around a new category of wearable technology, although applications and interest should not be interpreted as confirmed purchases.
Why The Temple Region Matters
The device’s location is not simply a design choice.
Temple is named after the anatomical region where it is worn. The company has been researching whether measurements taken from this area can provide information that conventional wearables cannot easily capture.
Earlier research discussions around the project focused on cerebral blood flow and the relationship between circulation, posture and aging. The company has subsequently described additional physiological measurements and a proprietary metric called “Entropy.”
However, some of the more ambitious claims surrounding the technology remain experimental and require independent scientific validation.
Temple Is Targeting A Different Wearable Market
The wearable industry is already crowded with smartwatches, fitness bands, smart rings and specialized health-monitoring devices.
Temple’s strategy is to occupy a more specialized segment centered on advanced physiological monitoring.
| Wearable Category | Typical Strength |
|---|---|
| Smartwatch | Fitness, notifications, heart rate and general health |
| Smart ring | Sleep, recovery and continuous health tracking |
| Fitness band | Activity and exercise monitoring |
| Medical wearable | Specific clinical measurements |
| Temple | Brain-related physiological monitoring |
This positioning could allow Temple to avoid competing directly with Apple, Samsung, Garmin and other mainstream wearable companies on features such as notifications, apps and general fitness tracking.
Instead, it is attempting to establish a new category around continuous physiological intelligence.
The Small Size Could Be A Major Advantage
For a wearable designed to be worn continuously, physical size is particularly important.
A device attached to the forehead has to remain comfortable during exercise, sleep and normal daily activities. A large or cumbersome design could limit adoption regardless of how sophisticated the sensors are.
Reducing the redesigned Temple to less than half the size of previous prototypes could therefore be more important than simply making the device look smaller.
| Hardware Factor | Why It Matters |
|---|---|
| Smaller footprint | Improves everyday wearability |
| Lower physical bulk | Potentially reduces discomfort |
| Temple placement | Keeps sensors near target measurement area |
| Continuous wear | Enables longer-term physiological datasets |
| Athlete use | Smaller hardware is less likely to interfere with movement |
The redesign suggests that the engineering team is moving from proving that the underlying concept can work toward making the technology suitable for real-world users.
Commercial Launch Is Expected Before The End Of 2026
Temple is now moving toward its first limited commercial release.
Goyal said limited launch-edition pre-orders will open soon, with initial shipments scheduled to begin before the end of 2026.
That timeline will provide an important test for the technology.
The first users will help determine whether Temple can deliver reliable data outside controlled development environments and whether people are willing to wear a device on their temple for extended periods.
Key Temple Milestones
| Timeline | Development |
|---|---|
| Earlier development | Brain-monitoring prototype developed |
| February 2026 | $54 million funding reported |
| Mid-2026 | More than 100,000 applications reported for initial devices |
| August 2026 | Redesigned hardware unveiled |
| Soon | Limited launch-edition pre-orders |
| Before end-2026 | Initial shipments planned |
The transition from prototype to shipped product will be particularly important because consumer adoption depends on comfort, battery life, reliability, software quality and the usefulness of the resulting data.
The Bigger Picture
Temple represents a broader shift in wearable technology from passive fitness tracking toward continuous measurement of deeper physiological signals. Instead of focusing primarily on steps, heart rate and calories, companies are increasingly exploring ways to measure signals associated with metabolism, recovery, brain function and other aspects of human performance.
For Deepinder Goyal, the redesigned Temple also represents an attempt to turn a research-driven project into a commercial technology platform. The reported $54 million funding round, more than 100,000 early applications and planned 2026 shipments indicate substantial interest, but the ultimate test will be whether the device can produce reliable measurements and translate them into information users can actually act on.
Looking Ahead
The immediate focus for Temple will be the transition from prototypes to real-world deployments. The smaller hardware could make continuous use more practical, while athletes and other early adopters may provide valuable feedback on comfort, data quality and usefulness during demanding physical and cognitive activities. The planned initial shipments before the end of 2026 should provide the first meaningful indication of how the product performs outside its development environment.
Longer term, Temple’s success will depend on whether its measurements can be independently validated and whether the company can establish a clear advantage over watches, rings and other health wearables. If the technology can reliably capture useful brain-related physiological information in a compact form factor, it could create a new category within the rapidly expanding wearable-health market. For now, however, Temple remains an ambitious technology project moving from experimental research toward its first commercial test.
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