USA
UK & EuropeFOURTH FRONTIER RAISES $10.5M TO SCALE OFFERINGS AND GROW THE TEAM. JOIN US!
FOURTH FRONTIER RAISES $10.5M TO SCALE OFFERINGS AND GROW THE TEAM. JOIN US!
RECORD & ANALYZE YOUR ECG
ANYTIME, ANYWHERE.
RECORD & ANALYZE YOUR ECG
ANYTIME, ANYWHERE.
RECORD & ANALYZE YOUR ECG
ANYTIME, ANYWHERE.
World’s first and only chest-worn Smart Heart Monitor that provides high quality continuous ECG & real-time feedback on your heart health.
World’s first and only chest-worn Smart Heart Monitor that provides high quality continuous ECG & real-time feedback on your heart health.
RECORD & ANALYZE YOUR ECG
ANYTIME, ANYWHERE.
“The device measures cardiac strain, a sign that you are pushing so hard that the heart muscle is not getting enough oxygen.”
“By listening to your heart and lungs, this strap measures real-time cardiac strain and breathing rate for a more accurate reading of effort.”
“The device measures cardiac strain, a sign that you are pushing so hard that the heart muscle is not getting enough oxygen.”
“By listening to your heart and lungs, this strap measures real-time cardiac strain and breathing rate for a more accurate reading of effort.”
“The device measures cardiac strain, a sign that you are pushing so hard that the heart muscle is not getting enough oxygen.”
“By listening to your heart and lungs, this strap measures real-time cardiac strain and breathing rate for a more accurate reading of effort.”
PUSH YOURSELF WITHOUT FEAR
Frontier X uses science backed metrics to help you actively care for your heart.
RECORD AND ANALYZE YOUR ECG IN REAL-TIME
Record high quality ECG during any exercise, to know how your heart is doing when you are pushing yourself the hardest.
ANALYTICS & INSIGHTS TO GUIDE YOUR PROGRESS
By correlating changes in your ECG with breathing rate, cardiac strain, heart rate, and other activity metrics, the Frontier X provides valuable insights to protect your heart and improve your performance.
EXERCISE SAFELY WITHOUT OVERSTRAINING YOUR HEART
ASSESS YOUR HEART FOR ABNORMAL RHYTHMS
Record a high-quality continuous ECG*, during any activity, for up to 24 hours and give yourself a better chance of spotting abnormal heart rhythms.
*Validated against a GE Holter Monitor to provide accurate results.
ASSESS YOUR HEART FOR ABNORMAL RHYTHMS
Record high-quality continuous ECG*, during any activity, for up to 24 hours and give yourself a better chance of spotting abnormal heart rhythms.
ASSESS YOUR HEART FOR ABNORMAL RHYTHMS
Record a high-quality continuous ECG*, during any activity, for up to 24 hours and give yourself a better chance of spotting abnormal heart rhythms.
*Validated against a GE Holter Monitor to provide accurate results.
MEASURE THE STRAIN ON YOUR HEART
Based on the principle of a Treadmill Stress Test, Cardiac Strain measures the amount of Oxygen deprivation experienced by the heart muscles.
PUSH YOURSELF WITHOUT FEAR
Frontier X uses science backed metrics to help you actively care for your heart.
ANALYTICS & INSIGHTS TO GUIDE YOUR PROGRESS
By correlating changes in your ECG with breathing rate, cardiac strain, heart rate, and other activity metrics, the Frontier X provides valuable insights to protect your heart and improve your performance.
RECORD AND ANALYZE YOUR ECG IN REAL-TIME
Record high quality ECG during any exercise, to know how your heart is doing when you are pushing yourself the hardest.
PUSH YOURSELF WITHOUT FEAR
Frontier X uses science backed metrics to help you actively care for your heart.
Science Backed Metrics
Use science backed metrics and accurate reliable data trusted by experts to guide your progress.
AI-Enabled Algorithms
Continuously evolving advanced algorithms and software that bring together the best of cardiac science and technology.
Review Detailed Workout Data
See your entire ECG and correlate it with your breathing rate, heart rate, cardiac strain and activity on a web dashboard.
RECORD AND ANALYZE YOUR ECG IN REAL-TIME
ANALYTICS & INSIGHTS TO GUIDE YOUR PROGRESS
EXERCISE SAFELY WITHOUT OVERSTRAINING YOUR HEART
ASSESS YOUR HEART FOR ABNORMAL RHYTHMS
Record high-quality continuous ECG*, during any activity, for up to 24 hours and give yourself a better chance of spotting abnormal heart rhythms.
*Validated against a GE Holter Monitor to provide accurate results.
MEASURE THE STRAIN ON YOUR HEART
Based on the principle of a Treadmill Stress Test, Cardiac Strain measures the amount of Oxygen deprivation experienced by the heart muscles.
“The first run I had with the device showed me how comfortable, simple, and easy to use it (the Frontier X) was, but more importantly, it gave me reassurance after years of pushing my body and my heart to its limit, that I hadn’t caused any lasting damage.”
PAULA RADCLIFFE
Former Women's Marathon World Record Holder
EXERCISE SAFELY WITHOUT OVERSTRAINING YOUR HEART
ASSESS YOUR HEART FOR ABNORMAL RHYTHMS
Record high-quality continuous ECG*, during any activity, for up to 24 hours and give yourself a better chance of spotting abnormal heart rhythms.
*Validated against a GE Holter Monitor to provide accurate results.
MEASURE THE STRAIN ON YOUR HEART
Based on the principle of a Treadmill Stress Test, Cardiac Strain measures the amount of Oxygen deprivation experienced by the heart muscles.
EXERCISE SAFELY WITHOUT OVERSTRAINING YOUR HEART
ASSESS YOUR HEART FOR ABNORMAL RHYTHMS
Record high-quality continuous ECG*, during any activity, for up to 24 hours and give yourself a better chance of spotting abnormal heart rhythms.
*Validated against a GE Holter Monitor to provide accurate results.
MEASURE THE STRAIN ON YOUR HEART
Based on the principle of a Treadmill Stress Test, Cardiac Strain measures the amount of Oxygen deprivation experienced by the heart muscles.
“The first run I had with the device showed me how comfortable, simple, and easy to use it (the Frontier X) was, but more importantly, it gave me reassurance after years of pushing my body and my heart to its limit, that I hadn’t caused any lasting damage.”
PAULA RADCLIFFE
Former Women's Marathon World Record Holder
“The first run I had with the device showed me how comfortable, simple, and easy to use it (the Frontier X) was, but more importantly, it gave me reassurance after years of pushing my body and my heart to its limit, that I hadn’t caused any lasting damage.”
PAULA RADCLIFFE
Former Women's Marathon World Record Holder
TRAIN IN THE ZONE
THAT'S RIGHT FOR YOU
Set discreet real-time vibration alerts for Heart Rate, Breathing Rate, and Cardiac Strain and nudge yourself into your zone.
Free Shipping
Free Shipping anywhere across the United States, United Kingdom, and India.
Product Support
We're here to help you get the most out of your Frontier X. Email us 24/7 with your questions.
1 Year Limited Warranty
Your unit is protected by a limited warranty for one year from the original date of purchase.
30 Day Risk Free Trial
An unbeatable guarantee: Try the Frontier X for 30 days, 100% risk-free.
IMPROVE WORKOUT PERFORMANCE
WITH PHYSIOLOGICAL METRICS
Measure Accurate Heart Rate
Get the most accurate chest based Heart Rate for effective training.
Measure Accurate Heart Rate
Get the most accurate chest based heart rate recording for effective training.
Measure True Effort with Breathing Rate
Use Breathing Rate to measure internal effort to help you train better, perfect your pace during races and beat your personal best.
Measure True Effort with Breathing Rate
Use Breathing rate for perfect pacing to improve race performance and beat your PRs faster.
Get the Most Out of Each Workout
Use Training Load to objectively measure workload regardless of sport or environment, to prevent over-training and injury, or under-training and deconditioning.
Get the Most Out of Each Workout
Use Training load to objectively measure workload regardless of sport or environment, to consistently improve performance.
Workout Without Distraction
Get discreet real-time vibration alerts when crossing Cardiac Strain and Effort thresholds, helping you tune into your body and avoid having to look at your wrist.
Workout Without Distraction
Get Real-time vibration alerts when crossing Cardiac Strain and Effort thresholds, and tune into your body.
not just numbers. gET peace of mind.
Avoid Over-Straining your Heart
Monitor Cardiac Strain and get real-time vibration alerts, so you can push yourself without fear.
Perfect your Pace
Use Breathing Rate to measure internal effort to help you train better and perfect your pace.
Monitor ECG Remotely*
Use live ECG to check your heart health right away, or share it with an expert, while exercising.
Strengthen your Heart
Push your heart in a controlled fashion by monitoring ECG response to exercise.
Measure Workload Objectively
Use Training Load to objectively measure workload regardless of sport or environment.
Prevent Injury
Measure the shock your body suffers during each foot-strike to reduce injury and run longer.
not just numbers, gET peace of mind
Avoid Over-Straining your Heart
Monitor Cardiac Strain and get real-time vibration alerts, so you can push yourself without fear.
Perfect your Pace
Use Breathing Rate to measure internal effort to help you train better and perfect your pace.
Monitor ECG Remotely*
Use live ECG to check your heart health right away, or share it with an expert, while exercising.
Strengthen your Heart
Push your heart in a controlled fashion by monitoring ECG response to exercise.
Measure Workload Objectively
Use Training Load to objectively measure workload regardless of sport or environment.
Prevent Injury
Measure the shock your body suffers during each foot-strike to reduce injury and run longer.
World’s first WEARABLE that
accurately detects physiological METRICS, so far available only in hospitals and labs
World’s first WEARABLE that
accurately detects physiological METRICS, so far available only in hospitals and labs
World’s first WEARABLE that
accurately detects physiological METRICS, so far available only in hospitals and labs
*Questionable Quality
Science Backed Metrics
Use science backed metrics and accurate reliable data trusted by experts to guide your progress.
AI-Enabled Algorithms
Continuously evolving advanced algorithms and software that bring together the best of cardiac science and technology.
Review Detailed Workout Data
See your entire ECG and correlate it with your breathing rate, heart rate, cardiac strain and activity on a web dashboard.
TRAIN IN THE ZONE
THAT'S RIGHT FOR YOU
TRAIN IN THE ZONE
THAT'S RIGHT FOR YOU
Set discreet real-time vibration alerts for Heart Rate, Breathing Rate, and Cardiac Strain and nudge yourself into your zone.
"Using the Frontier X makes me stay in that area in which I am exercising enough to strain the heart muscle, therefore train it, but not so much that I precipitate a cardiac event."
Helen Reed
Frontier X User
30 DAY RISK FREE TRIAL
An unbeatable guarantee: Try the Frontier X for 30 days, 100% risk-free.
FREE SHIPPING
Free Shipping anywhere across the United States, United Kingdom, and India.
PRODUCT SUPPORT
We're here to help you get the most out of your Frontier X. Email us 24/7 with your questions.
1 YEAR LIMITED WARRANTY
Your unit is protected by a limited warranty for one year from the original date of purchase.
NOT JUST NUMBERS.
Get PEACE OF MIND.
AVOID OVER-STRAINING YOUR HEART
Monitor Cardiac Strain and get real-time vibration alerts, so you can push yourself without fear.
Measure Accurate Heart Rate
Get the most accurate chest based heart rate recording for effective training.
Measure True Effort with Breathing Rate
Use Breathing rate for perfect pacing to improve race performance and beat your PRs faster.
MONITOR ECG REMOTELY*
Use live ECG to check your heart health right away, or share it with an expert, while exercising.
Get the Most Out of Each Workout
Use Training load to objectively measure workload regardless of sport or environment, to consistently improve performance.
STRENGTHEN YOUR HEART
Push your heart in a controlled fashion by monitoring ECG response to exercise.
MEASURE WORKLOAD OBJECTIVELY
Use Training Load to objectively measure workload regardless of sport or environment.
PREVENT INJURY
Measure the shock your body suffers during each foot-strike to reduce injury and run longer.
Workout Without Distraction
Get Real-time vibration alerts when crossing Cardiac Strain and Effort thresholds, and tune into your body.
PERFECT YOUR PACE
Use Breathing Rate to measure internal effort to help you train better and perfect your pace.
World’s first WEARABLE that
accurately detects physiological METRICS, so far available only in hospitals and labs
World’s first WEARABLE that
accurately detects physiological METRICS, so far available only in hospitals and labs
World’s first WEARABLE that accurately detects physiological METRICS, so far available only in hospitals and labs
FRONTIER X INTEGRATIONS
The Frontier X uses Bluetooth Low Energy (BLE) technology to sync with third-party devices and provide Heart Rate data in real-time. That means you can train distraction-free with the device you already own without losing out on the Frontier X metrics.
“For anyone who exercises, the additional measurement of overall heart health is a potential life changer.”
Michael Conlon
Founder of Finish Line Physical Therapy
“Without the Frontier X we might never have known. We might not have known that I had an ectopic problem. I would have probably increased my exercise; (i.e) done more faster and longer and this could have put me at real risk for the ectopics getting out of control.”
TOM GASKELL
Frontier X User
FRONTIER X INTEGRATIONS
The Frontier X uses Bluetooth Low Energy (BLE) technology to sync with third-party devices and provide Heart Rate data in real-time. That means you can train distraction-free with the device you already own without losing out on the Frontier X metrics.
“For anyone who exercises, the additional measurement of overall heart health is a potential life changer.”
Michael Conlon
Founder of Finish Line Physical Therapy
FRONTIER X INTEGRATIONS
The Frontier X uses Bluetooth Low Energy (BLE) technology to sync with third-party devices and provide Heart Rate data in real-time. That means you can train distraction-free with the device you already own without losing out on the Frontier X metrics.
“For anyone who exercises, the additional measurement of overall heart health is a potential life changer.”
Michael Conlon
Founder of Finish Line Physical Therapy
“Without the Frontier X we might never have known. We might not have known that I had an ectopic problem. I would have probably increased my exercise; (i.e) done more faster and longer and this could have put me at real risk for the ectopics getting out of control.”
TOM GASKELL
Frontier X User
FRONTIER X INTEGRATIONS
The Frontier X uses Bluetooth Low Energy (BLE) technology to sync with other devices and provides your data in .FIT file format.
“For anyone who exercises, the additional measurement of overall heart health is a potential life changer.”
Michael Conlon
Founder of Finish Line Physical Therapy
“Without the Frontier X we might never have known. We might not have known that I had an ectopic problem. I would have probably increased my exercise; (i.e) done more faster and longer and this could have put me at real risk for the ectopics getting out of control.”
TOM GASKELL
Frontier X User
“Rather than just beats per minute, the chest-mounted computer measures and records the functioning of the heart and lungs."
“You’ve heard of smart gadgets that can actually track our fitness, but the Frontier X really takes it to a whole new level.”
GAIN INSIGHTS AND GET HELP FROM EXPERTS TO GUIDE YOUR PROGRESS
GET HELP FROM OUR EXPERTS
Our experts are available to help you understand your data and provide guidance.
GET INSIGHTS TO IMPROVE PERFORMANCE
Unique AI generated insights for each workout show you how you did and what you can do better.
INTELLIGENT ANALYSIS OF MEDICAL GRADE ECG*
Help detect and understand abnormalities in your heart function, keeping you safe from harm.
FRONTIER X specifications
. Apps available for iOS and Android phones.
. Display Heart Rate on compatible BLE sports watches.
. Sweat-proof and Waterproof up to 1.5 metres.
. Battery: Upto 24 hours of continuous use, or 2 weeks of typical use.
. Easy to wear chest belt.
. Lightweight device snaps on to the chest belt with ease.
. Single red button for all key actions.
-
- . Easy to connect wirelessly to any smartphone.
“Rather than just beats per minute, the chest-mounted computer measures and records the functioning of the heart and lungs."
“You’ve heard of smart gadgets that can actually track our fitness, but the Frontier X really takes it to a whole new level.”
FRONTIER X specifications
. Apps available for iOS and Android phones.
. Display Heart Rate on compatible BLE sports watches.
. Sweat-proof and waterproof up to 1.5 metres.
. Battery: Upto 24 hours of continuous use, or two weeks of typical use.
. Easy to wear chest belt.
. Lightweight device snaps on to the chest belt with ease.
. Single red button for all key actions.
. Easy to connect wirelessly to any smartphone.
“Rather than just beats per minute, the chest-mounted computer measures and records the functioning of the heart and lungs.”
“You’ve heard of smart gadgets that can actually track our fitness, but the Frontier X really takes it to a whole new level.”
TECHNICAL specifications
. Apps available for iOS, Apple Watch and Android phones.
. Display Heart Rate on compatible BLE sports watches.
. Sweat-proof and Waterproof up to 1.5 metres.
. Battery: Upto 24 hours of continuous use.
. Easy to wear chest belt.
. Lightweight device snaps on to the chest belt with ease.
. Single red button for all key actions.
. Easy to connect wirelessly to any smartphone.
WHAT PEOPLE ARE SAYING ABOUT THE FRONTIER X
PAULA RADCLIFFE
Former Women's Marathon World Record Holder
" The heart and lungs are the fundamental foundations of all endurance sport. Frontier X enables us to protect and listen to them, thus helping us all to work with our bodies in far greater harmony. "
TIM HUTCHINGS
Marathon broadcaster and 1984 UK Olympian
" What’s groundbreaking about the Frontier X is that this information has never been obtainable outside a lab. It could potentially have given me a warning about my building atrial fibrillation, a heart defect that can randomly develop in any one of us. "
MICHAEL CONLON
Founder of Finish Line Physical Therapy
" For endurance athletes, Frontier X is a game-changer that impacts optimal training load and performance by measuring breathing rate. For anyone who exercises, the additional measurement of overall heart health is a potential life changer. "
YASH MUTHIYAN
Running Blogger and Regular Marathoner
" Heart rate tells only a small part of the story. Real effort depends on breathing rate and cardiac strain. Frontier X gives me a detailed ECG for every run and helps me keep track of my training load based on real effort. "
ROSS MCGRAW
Team USA Triathlete
" When I was first introduced to Frontier X I dove into what data it could provide, the metrics and the technology. What I did not anticipate was that using Frontier X would actually make me a better and more mindful athlete. "
DR. ANJUR HELEN JAIN
Frontier X User
" Using the Frontier X makes me stay in that area in which I am exercising enough to strain the heart muscle, therefore train it, but not so much that I precipitate a cardiac event."
BUDD COATES
4-time Olympic Marathon Trials qualifier
" Frontier X offers real-time feedback on breathing, paired with stride cadence allowing the athlete to hone in on the perfect pace for the distance being raced or the workout being run. "
JONATHAN CANE
New York City endurance sports coach
" Frontier X is the first product to provide the ability to monitor breathing rate and thus gauge intensity using practical and scientifically justified methodology. "
NINE LIVES.
NINE STORIES.
See how the Frontier X has changed the lives of people with its rich set of life-enhancing features…
WHAT PEOPLE ARE SAYING
ABOUT THE FRONTIER X
Tim Hutchings
Marathon broadcaster and 1984 UK Olympian
" What’s groundbreaking about the Frontier X is that this information has never been obtainable outside a lab. It could potentially have given me a warning about my building atrial fibrillation, a heart defect that can randomly develop in any one of us. "
Paula Radcliffe
Former Women's Marathon World Record Holder
" The heart and lungs are the fundamental foundations of all endurance sport. Frontier X enables us to protect and listen to them, thus helping us all to work with our bodies in far greater harmony. "
Michael Conlon
Founder of Finish Line Physical Therapy
" For endurance athletes, Frontier X is a game-changer that impacts optimal training load and performance by measuring breathing rate. For anyone who exercises, the additional measurement of overall heart health is a potential life changer. "
Yash Muthiyan
Running Blogger and Regular Marathoner
" Heart rate tells only a small part of the story. Real effort depends on breathing rate and cardiac strain. Frontier X gives me a detailed ECG for every run and helps me keep track of my training load based on real effort. "
Ross McGraw
Team USA Triathlete
" When I was first introduced to Frontier X I dove into what data it could provide, the metrics and the technology. What I did not anticipate was that using Frontier X would actually make me a better and more mindful athlete. "
Dr.Anju Helen Jain
Frontier X User
" Using the Frontier X makes me stay in that area in which I am exercising enough to strain the heart muscle, therefore train it, but not so much that I precipitate a cardiac event."
Budd Coates
4-time Olympic Marathon Trials qualifier
" Frontier X offers real-time feedback on breathing, paired with stride cadence allowing the athlete to hone in on the perfect pace for the distance being raced or the workout being run. "
Jonathan Cane
New York City endurance sports coach
" Frontier X is the first product to provide the ability to monitor breathing rate and thus gauge intensity using practical and scientifically justified methodology. "
Paul M.
Frontier X User
" The Frontier X is for anybody who wants to understand how hard they are pushing themselves during training, in a way that is more meaningful than just measuring heart rate."
NINE LIVES.
NINE STORIES.
See how the Frontier X has changed the lives of people with its rich set of life-enhancing features…
WHAT PEOPLE ARE SAYING ABOUT
THE FRONTIER X
TIM HUTCHINGS
Marathon broadcaster and 1984 UK Olympian
" What’s groundbreaking about the Frontier X is that this information has never been obtainable outside a lab. It could potentially have given me a warning about my building atrial fibrillation, a heart defect that can randomly develop in any one of us."
PAULA RADCLIFFE
Former Women's Marathon World Record Holder
" The heart and lungs are the fundamental foundations of all endurance sport. Frontier X enables us to protect and listen to them, thus helping us all to work with our bodies in far greater harmony. "
BUDD COATES
4-time Olympic Marathon Trials qualifier
" Frontier X offers real-time feedback on breathing, paired with stride cadence allowing the athlete to hone in on the perfect pace for the distance being raced or the workout being run. "
YASH MUTHIYAN
Running Blogger and Sub-Elite Marathoner
" Heart rate tells only a small part of the story. Real effort depends on breathing rate and cardiac strain. Frontier X gives me a detailed ECG for every run and helps me keep track of my training load based on real effort. "
ROSS MCGRAW
Team USA Triathlete
" When I was first introduced to Frontier X I dove into what data it could provide, the metrics and the technology. What I did not anticipate was that using Frontier X would actually make me a better and more mindful athlete. "
JONATHAN CANE
New York City endurance sports coach
" Frontier X is the first product to provide the ability to monitor breathing rate and thus gauge intensity using practical and scientifically justified methodology. "
NINE LIVES.
NINE STORIES.
See how the Frontier X has changed the lives of people with its rich set of life-enhancing features…
STAY CONNECTED
Sign up now to hear about new stories, product drops, collaborations, and all things Frontier X — straight from your inbox.
STAY CONNECTED
Sign up now to hear about new stories, product drops, collaborations, and all things Frontier X — straight from your inbox.