Calibre Biometrics

08/01/2026

Reaching out to my network with a to share an immediate investment opportunity with Calibre Biometrics.

As the Chief Evangelist and a founding team member since the beginning, over four years, I am excited to highlight our groundbreaking wearable breath-measurement device. This innovative technology delivers true metabolic and respiratory lab-grade data anywhere, anytime.

Our device is designed for athletes, biohackers, wellness enthusiasts, and healthcare professionals who can greatly benefit from real-time respiratory measurements. Existing solutions are often expensive, stationary, and complex, but Calibre offers a lightweight, affordable, and externally validated device that makes breath analytics accessible to the mass market.

With revenue accelerating, we are preparing for our Series A in 2026 and are currently raising a bridge round to support our next stage of growth. This funding will provide the necessary capital to increase manufacturing capacity. We are offering attractive terms for interested investors, with a minimum check size of $50K.

Our recent success has led to overselling on our stock, establishing demand. We are looking to overcome this growth challenge and lean in to our profitable business model

If you are interested in participating in this bridge/angel funding round, please reach out. Either I or our Founder, Udi Meirav, would be happy to discuss our product and business in detail.

We aim to close this round in less than 30 days and plan to keep the process simple with a convertible note featuring excellent terms. We appreciate sincere interest in investing.

For those seriously interested, we can share a detailed deck. You can contact me directly at sean.coakley@calibrebio.com to get started.

08/01/2026

Reaching out to our network with a to share an immediate investment opportunity with Calibre Biometrics, Inc. www.calibrebio.com

As the Chief Evangelist and a founding team member since the beginning, over four years, I am excited to highlight our groundbreaking wearable breath-measurement device. This innovative technology delivers true metabolic and respiratory lab-grade data anywhere, anytime.

Our device is designed for athletes, biohackers, wellness enthusiasts, and healthcare professionals who can greatly benefit from real-time respiratory measurements. Existing solutions are often expensive, stationary, and complex, but Calibre offers a lightweight, affordable, and externally validated device that makes breath analytics accessible to the mass market.

With revenue accelerating, we are preparing for our Series A in 2026 and are currently raising a bridge round to support our next stage of growth. This funding will provide the necessary capital to increase manufacturing capacity. We are offering attractive terms for interested investors, with a minimum check size of $50K.

Our recent success has led to overselling on our stock, establishing demand. We are looking to overcome this growth challenge and lean in to our profitable business model

If you are interested in participating in this bridge/angel funding round, please reach out. Either I or our Founder, Udi Meirav, would be happy to discuss our product and business in detail.

We aim to close this round in less than 30 days and plan to keep the process simple with a convertible note featuring excellent terms. We appreciate sincere interest in investing.

For those seriously interested, we can share a detailed deck. You can contact me directly at sean.coakley@calibrebio.com to get started.

Unlock real-time respiratory & metabolic insights with Calibre—a wearable built for performance, longevity, and personalized health optimization.

27/08/2025

The team at Calibre is super excited about this partnership!! we are super stoked to be able to help everyone involved in Hyrox train with intelligence!!

04/08/2025

No tangle of tubes.
No treadmill stress test.
No $300 lab invoice.
 
Just you, your breath, and a device 
that fits in your hand.
 
Calibre delivers real-time metabolic 
and respiratory data — VO₂, RMR, 
respiratory rate, calorie burn, and 
more — using the gold-standard 
method: indirect calorimetry.
Anywhere. Anytime. No guesswork.
 
   
 
   
   

22/07/2025

We get this question quite often. And the answer is simple. Lab-grade accuracy. Zero lab required.

📊 Validated against top-tier lab carts, Calibre matches their precision for VO₂, VCO₂, RER, and more—without the hoses, tech teams, or $30K price tags.

Whether you’re coaching Olympic hopefuls or hacking your metabolism at home, you deserve data you can trust. Not approximations. Not estimates. Real numbers, breath by breath.

💡 Think: metabolic cart in your pocket.

13/06/2025

We are officially launching our new ambassador program. See linkbio.

as we roll out this program, we are not looking to flood the market with ambassadors. we are looking for our professional minded, credible content creators who have a deep understanding of the technical nature of our device and brand.

It is early days for us so we do not have the ability to pay upfront for content creation and engagement. We are offering monthly payout commissions.

Our goal over the next 3 to 6 months is defined 20 to 30 ambassadors that help us cover specific niche areas as well as geography. A strong ability to create professional looking content is always appreciated and having a solid history of curated social media accounts is important.

We have many strong candidates who we have been speaking with historically, waiting for this moment to come, and we hope that any and all applicants were looking to work with us consider that we will not be signing up everyone who applies.

Thanks in advance for your interest. We will do our best to respond to everyone and we look forward to connecting.

10/06/2025

A quick notification to all our users. We attempted to send an email to everyone who had historically purchased a Calibre device describing how to transition from our legacy app to the brand new app we recently released. We have heard from many that they didn't see the email arrive, so wanting to share publicly the "transition" plan we put together on how to move from the legacy app to the new app. We highly suggest you all do this as quickly as possible to ensure a seamless transition:

08/06/2025

Sean Coakley here.....I've had the privilege of working with Calibre Biometrics for several years, from its early beginnings when the team was just a handful of individuals. Coming from a background in health, sports, and technology, a major gap was noticed in respiratory performance coaching tools. Traditional equipment was bulky, expensive, and confined to labs, lacking a portable and user-friendly solution.

Joining Calibre Biometrics became a personal mission to help revolutionize the field, catering to coaches, researchers, academics, biohackers, athletes, and longevity experts. Our goal was to make respiratory and metabolic biometrics accessible with a user-friendly approach and an affordable price point, democratizing CPET and metabolic cart data.

With years of dedicated work and feedback from thousands of users, we've shaped our roadmap and product development. Our latest achievement is the unveiling of our new app, meticulously crafted from the ground up. This platform, designed in response to user input, offers a seamless and enhanced experience for interacting with our device and extracting insights efficiently.

By leveraging breath calorimetry's gold standard science and a unique device design, we empower users to access performance and physiological metrics previously confined to labs or estimated by algorithms. Each breath becomes a valuable data point, revealing intricate details about fuel utilization, such as fats and carbs, with exceptional accuracy.

Being part of this groundbreaking technology is truly exhilarating. Our team extends profound gratitude to early adopters whose input has refined our vision and sharpened our focus. Together, we aim to build a platform and database that unlocks profound insights from the fundamental yet often overlooked information encapsulated in every breath we take.

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05/06/2025

METRICS! We receive questions every day from people asking us what kind of metrics we are able to capture. We've read comments of people stating they know we don't have an O2 sensor or a CO2 sensor.. So here to set the record straight and share some of the metrics that we captured with our device.

First and quickly, we most certainly do have an O2 sensor and a CO2 sensor and many others built into the device . We have worked with one of the premier sensor manufacturing companies in the world and utilize smaller faster, lighter sensors than have ever been available before inside of a metabolic cart/device.

As you could see from the list in the second carousel slide, we capture a tremendous amount of data and we do so very accurately.

For professionals in the space, it's sometimes hard to believe that in such a small, lightweight and simple to use device we can capture so much and maintain our accuracy. Although the general science behind capturing and calculating these metrics haven't changed in years technology has caught up if you think through the lense of Moore's Law", technology is simply faster, better and less expensive than it used to be.

Our approach is different and it is unique, and in order to get where we are, we had to think outside the box and let go of any preconceived notions from the historical and previous designs in the industry .

We we're thrilled to be able to create a device that is economical enough and simple to use for consumers yet at the same time accurate and capable enough to please the highest level professionals.

For all those who have purchased a Calibre device already we thank you, and
for all those who have not yet discovered Calibre we hope the information shared here will help you gain confidence in joining our community and buying a device.

05/06/2025

So, time to be excited. Our launch is here. Our new app is a hit! Check out the next era of Calibre's capabilities and we are just getting started started!!

Live dashboard shows color-coded metrics in real time

Pin and overlay multiple metrics for deeper insight during sessions

Connects seamlessly with Polar and MyZone heart rate monitors

Built-in data checks ensure sensors are calibrated before starting

Step-by-step guidance helps optimize every testing session.

Session history makes it easy to review and compare past data

Download your log files directly from our new web portal!

03/03/2025

Excited to announce the release of this new firmware version 19.06

Instructions to download the firmware are included in this post .

We did send out a direct email, but we're made aware by many people that it landed in a spam folder, so please take a moment and check your email and make sure you move us to your inbox.

We are working hard to make continuous improvements and want to thank each and everyone of you for your patience . We're a small team but working hard every day of the week to make this product the best it can be.

Thanks All.

05/01/2025

Rolling into 2025! has been hard at work behind the scenes. As you can see in this post, our device is being utilized in concert with two other biometric devices. One that you cannot see HRM and the other Muscle Ox place on the thigh. All of this comes together through incredible partnership we all have via www.splendo.health (Instagram account coming soon)

So what does this accomplish? Splendo, a group of experts in development and physiology have created a data integration platform that through a partnership with Duke university delivers powerful cardio, pulmonary metabolic reporting. Multiple protocols are built into their app allowing for a scalability, ease use, and instantaneously available actionable data.

Using best in class devices this partnership is it's just beginning to disrupt CPET, human performance, longevity, metabolic biohacking and remote monitoring.

DM us for more details