Temple
Temple is a pre-revenue wearable startup founded by Deepinder Goyal that builds a head-worn device reading a proprietary 'Entropy' metabolic biomarker from the superficial temporal artery, targeting elite athletes and high-performance professionals through a direct-to-consumer model with planned subscription pricing.
- Company typePrivate
- Founded2024
- HeadquartersNew Delhi, India
- Headcount11–50
- GTM typeB2C
- OfferingHardware or Manufacturing
What Temple does
Temple is a privately held, pre-revenue wearable-technology startup founded in August 2024 by Deepinder Goyal (co-founder and former CEO of Zomato/Eternal), developing a head-worn device that non-invasively reads signals from the superficial temporal artery to compute a proprietary biomarker called 'Entropy' — a real-time 1-250 score representing the body's metabolic and sympathetic demand, with sub-scores for Entropy Maxima (peak capacity) and Entropy Minima (resting metabolic cost). The company claims a correlation of r=0.93 between Entropy readings and laboratory-grade calorimeters across more than 100 cardio sessions, versus r=0.55 for heart rate, and positions the forehead/temple sensing site as structurally superior to wrist-based wearables due to thinner skin, higher vascularization, and lower motion interference. The product is anchored by founder Goyal's 'Gravity Ageing Hypothesis' linking gravitational stress on brain circulation to aging, supported by an 8-member Scientific Advisory Board drawn from Boston University, Harvard Medical School, Massachusetts General Hospital, Salk Institute, EPFL, University of Ottawa, University of Florida, and Vrije Universiteit Amsterdam.
Temple's business model combines one-time hardware sales through a direct-to-consumer channel (temple.com) with a planned recurring subscription layer, currently operationalized as an invite-only Early Access Program in which selected beta users pay an undisclosed amount that will be discounted from the eventual commercial subscription price. The first 100 devices shipped in May 2026 to a curated founding cohort of athletes, scientists, founders, doctors, and creators, following a $54M friends-and-family seed round in February 2026 at a ~$190M post-money valuation — among India's largest seed rounds — with manufacturing outsourced to Zetwerk and Ethereal Machines. The product roadmap extends beyond Entropy into brain-computer interface (BCI), EEG/EMG sensing, and broader cerebral blood flow monitoring, with companion-app integrations including Apple Health, Google Sign-In, and a third-party-LLM-powered personalized AI assistant. As of mid-2026 the company has not announced a commercial launch date, pricing, or public availability, and the technology remains unvalidated by independent peer review.
Temple firmographics
Firmographics- Name
- Temple
- Legal name
- Temple Wearables Inc.
- Website
- https://temple.com
- Company type
- Private
- Founded year
- 2024
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Temple is a pre-revenue wearable startup founded by Deepinder Goyal that builds a head-worn device reading a proprietary 'Entropy' metabolic biomarker from the superficial temporal artery, targeting elite athletes and high-performance professionals through a direct-to-consumer model with planned subscription pricing.
- Ownership category
- akta.pro rank
Temple industry classification
Industry- Product category
- Wearable Health Technology
- NAICS
- Electromedical and Electrotherapeutic Apparatus Manufacturing (334510)
- SIC
- Electromedical & Electrotherapeutic Apparatus (3845)
- akta.pro primary industry
- Sleep Tech Wearables (CRACAIAG)
- akta.pro secondary industries
- Smart Fitness & Training Devices (Connected Fitness Sensors, Smart Jump Ropes, etc.) (CRACAQAH), Connected Medical Devices & Wearables (Sensors, Patches, Implantables) (HLACAPAB)
Keywords
Where Temple is headquartered
LocationHeadquarters
- HQ city
- New Delhi
- HQ country
- India
- HQ region
- Asia
Offices2 records
Markets served
Temple business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Technology or R&D, Supply Chain, Marketing or Sales, Operations
Revenue model
- Device hardware sales: Temple sells its wearable device (Temple Wearables Inc.) to end-user customers for personal, non-commercial use only. First batch of around 100 units has shipped as a beta program; the company is targeting initial production of a few thousand units for both Indian and overseas markets including the US. No commercial launch date or pricing has been publicly disclosed.
- Subscription Services: Temple references an 'overall subscription price of the Services' and a beta device payment that will be discounted from the subscription price upon commercial launch, indicating a planned recurring subscription revenue model alongside device sales.
- Beta device program fees: Selected early access applicants must complete payment for the Beta Device via a payment link; the amount paid will be discounted from the eventual commercial subscription price, serving as an early pre-order mechanism.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | One time/ perpetual license | Beta / Early Access Device |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels6 records
Temple product offering
Product offeringCore offering
Temple develops a head-worn (temple/forehead) wearable device that non-invasively reads the proprietary Entropy biomarker from the superficial temporal artery, quantifying real-time metabolic and sympathetic demand on a 1–250 scale. The hardware is paired with a companion mobile application that visualizes Entropy, heart rate, sleep, recovery and other metrics, integrates with Apple Health, and offers an AI-assisted chat for personalized insights.
Product overview
Temple offers a single integrated product line built around the head-worn Temple Wearable Device, the proprietary Entropy biomarker it computes, and the companion Temple Mobile Application. The wearable reads signals non-invasively from the superficial temporal artery and outputs the Entropy score (1–250), including Entropy Maxima and Entropy Minima sub-scores, while the Temple Mobile Application handles onboarding, account and payment management, AI-assisted chat, and synchronization with Apple Health and other connected services. The Early Access Program is the launch vehicle for the device, distributing the first 100 units to a curated founding cohort ahead of wider commercial availability. Together the device, app, Entropy metric, and Early Access Program form a unified single-product architecture aimed at elite athletes and high-performance professionals.
Differentiator
Problem solved
Functional benefit
Brands
- Temple Wearable: The head-worn wearable device that continuously measures cerebral blood flow and introduces the proprietary 'Entropy' biomarker.
- Entropy
Products and services
- Temple Wearable Device Head-worn (temple/forehead) wearable that non-invasively reads signals from the superficial temporal artery to compute and display the proprietary Entropy biomarker (1–250 score) representing real-time metabolic and sympathetic demand, along with heart rate, recovery, sleep and cerebral blood flow metrics. Targeted at elite athletes and high-performance professionals.
- Temple Mobile Application Companion mobile app that pairs with the Temple wearable for onboarding, account and payment management, display of Entropy and other wellness metrics, AI-assisted chat, and synchronization with Apple Health.
- Entropy Biomarker Proprietary wellness biomarker quantifying the real-time metabolic cost of being alive, displayed as a live score from 1 to 250 updated every second, with Entropy Maxima (peak physical capacity) and Entropy Minima (resting metabolic cost) sub-scores.
- Temple Subscription Services Planned recurring subscription service accompanying the Temple device experience, referenced in the Terms of Use; the beta device payment is applied as a discount toward the eventual commercial subscription price.
Companies that use Temple
Customer profileNamed customers1 record
Segments3 records
Ideal customer profiles2 records
Temple technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
AI capability5 records
Feature6 records
Temple partnerships and signals
Strategic signalScale indicators9 records
Recent moves6 records
Expansion highlights6 records
Temple competitors and assessment
Company assessmentDirect peers
- Polar: Heart rate and performance wearable brand frequently cited in Temple's accuracy benchmarks (e.g., the badminton test). Directly comparable on accuracy-centric positioning in elite sport and the same target buyer profile.
- Muse: Head-worn brain-sensing wearable (EEG) for meditation, sleep, and focus. Comparable to Temple on head-worn form factor, brain-focused biometrics, and consumer neurotechnology category, with overlap in the 'preventive/cognitive health' value proposition.
- Whoop: Subscription-based wrist wearable focused on recovery, strain, and sleep for athletes and high-performance users. Directly comparable to Temple in target customer (elite performance), wearable-with-subscription business model, and emphasis on proprietary recovery/biomarker metrics rather than step counting.
- Oura: Smart ring with subscription that delivers proprietary readiness, sleep, and recovery scores for performance-oriented consumers. Comparable to Temple in hardware-plus-subscription model, proprietary biomarker framing, and premium consumer positioning.
Others
- Humane (AI Pin): Failed consumer hardware startup that illustrates the risks of premium, design-forward hardware without a clear validated use case. Comparable as a cautionary structural peer for Temple's premium consumer hardware business model and fundraising scale.
Broad incumbents
- Garmin: Established performance wearables portfolio with deep penetration among elite and endurance athletes. Comparable on target customer (elite athletes including PV Sindhu's broader category) and accuracy validation culture, and a key competitor for sport-specific adoption.
- Apple Watch: Dominant wrist-worn wearable with health sensors (HR, HRV, SpO2, ECG) and deep Apple Health integration. Represents the incumbent Temple must displace or differentiate from, particularly given Temple's Apple Health sync compatibility.
Emerging players
- Neurable: Brain-computer interface company building EEG-based wearables for productivity and health. Comparable to Temple on neurotechnology/Brain-Computer Interface focus and the same recruiting areas (neural sensing, EEG).
- Cranialis: Emerging consumer neurotechnology startup developing head-worn devices for cognitive performance. Thematically adjacent to Temple on head-worn form factor and brain-performance biometrics.
Regional players
- Ultrahuman: India-based smart ring and metabolic health wearable startup with a premium performance positioning. Comparable as a fellow Indian premium wearable brand targeting high-performance users with proprietary biomarkers; competes in the same Indian premium consumer segment.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Temple social profiles
Digital presenceTemple financial estimates
Financial estimateRevenue estimate
Valuation estimate
Temple leadership team
Management profileNumber of profiles
Profiles11 records
Temple subsidiaries and ownership
Company hierarchySubsidiaries2 records
Temple funding detail
Funding detailFunding overview
Funding rounds2 records
Investors5 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Temple M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Temple
What does Temple do?
Temple develops a head-worn (temple/forehead) wearable device that non-invasively reads the proprietary Entropy biomarker from the superficial temporal artery, quantifying real-time metabolic and sympathetic demand on a 1–250 scale. The hardware is paired with a companion mobile application that visualizes Entropy, heart rate, sleep, recovery and other metrics, integrates with Apple Health, and offers an AI-assisted chat for personalized insights.
Is Temple a public or private company?
Temple is a private company. It is classified as venture growth investor backed and is currently operating.
When was Temple founded?
Temple was founded in 2024. It employs 11 to 50 people.
Where is Temple based?
Temple is headquartered in New Delhi, India, in the Asia region.
How does Temple make money?
Three revenue lines are on record. Device hardware sales are the primary driver. The others are subscription Services and beta device program fees.
Who are Temple's main competitors?
Direct peers on record are Polar, Muse, Whoop and Oura. Humane (AI Pin) is listed as an others. Broad incumbents are Garmin and Apple Watch. Emerging players are Neurable and Cranialis. Ultrahuman is listed as a regional player.
Does Temple have an API?
No public API is recorded for Temple.
What industry is Temple in?
Temple's product category is Wearable Health Technology. Its primary akta.pro industry code is CRACAIAG, Sleep Tech Wearables, with a secondary code of CRACAQAH, Smart Fitness & Training Devices (Connected Fitness Sensors, Smart Jump Ropes, etc.). Its NAICS code is 334510 and its SIC code is 3845.