Saturday, November 7, 2026 · Customer reviews of US businesses
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371 reviews
Fourth FrontierSelect a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Fourth Frontier is a pioneering health tech company that builds and offers products and services for monitoring and improving heart health for people across the world. ------------------------------------------------- Frontier X2, our revolutionary patented product that provides real-time feedback on heart health to users on the move. Take control of your hearth health with the world's first smart heart monitor.If you need more information on our device and would like to speak to one of us regarding that, please book a demo call.Book a demoCalculate your heart score and get personalized insightsTake our quiz
Fourth Frontier (fourthfrontier.com) has 371 customer reviews on The Fair Hearing, with an average rating of 4.4 out of 5.
371 approved reviews, newest moderated first
Great product - very accurate. Extremely happy with the reassurance it gives me. To see my fitness improve is very satisfying.
By Nick S.
Response from Fourth Frontier· Feb 22, 2023
Thank you for leaving a 5-Stars review. We at Fourth Frontier continuously strive to serve you better. We look forward to serving you in the future
I love the device and so appreciate the information. IN fact, I need it. But I find the device too unreliable to use. I run daily and need to have a heart rate monitor. My battery is always dead and even after leaving it charged and plugged in, most of the time, I can’t get it to start. I reboot it and do what I think needs to be done, but it still doesn’t work. Often it cuts out in the middle of my run and is dead. :-( however, the customer service has been repeatedly outstanding
By Sandra S.
Response from Fourth Frontier· Feb 22, 2023
hank you so much for sharing your valuable feedback. We sincerely apologise for all the inconvenience caused to you. We would like to inform you that customer satisfaction is always been a number one priority for us. We are always trying to improve our product to provide you with a better experience. We would like to let you know that as a conscious effort to reduce our carbon footprint, we do not provide the charging brick. The charging cable you have received is compatible with any USB plugs on a laptop or computer. The charging brick itself if you would need to purchase it is the 0.5 Amp/5 Volts as advised. Depending on your usage, the battery life of your device may vary: 1. A fully charged Frontier X2 can last 24 hours in Monitor Mode. 2. Your fully charged Frontier X2 can last for approximately 14 days if used for an average of 1 hr/day. 3. Your fully charged Frontier X2 can track a maximum of about 24 hours of activities before you need to download your data to the app and charge the device. 4. For optimal usage, we recommend charging your Frontier X2 when the battery level goes below 20%. We will pass your suggestion to our team as how we can improve our process further. As much as we hate to see you go, We completely understand how upset you must have felt. We apologise again for any inconvenience that we may have caused you. However, Please reach out to [email protected] with you contact details so we can reach out to you as soon as possible and we will be happy to help"
After a small malfunction in the beginning - which your tech team fixed - it has worked perfectly over almost 200 sessions over the last 7 months. I use it as a monitor for longer, more intensive aerobic endurance sessions.I highly recommend it for those who care about vitals when exercising for safety and track changes over successive workouts.
By Jim O.
Response from Fourth Frontier· Feb 22, 2023
Thank you for leaving a 5-Stars review. We at Fourth Frontier continuously strive to serve you better. We look forward to serving you in the future
Outstanding product and customer service
By Rob T.
Response from Fourth Frontier· Feb 22, 2023
Thank you so much for your 5-star review! We will share this with our entire team to let them know to keep up the amazing work. We look forward to serve you in furture
A great hrm that is invaluable as it tells you in real time if you are over straining
By Andy
Response from Fourth Frontier· Feb 22, 2023
Thank you for leaving a 5-Stars review. We at Fourth Frontier continuously strive to serve you better. We look forward to serving you in the future
A dedicated service, with regular emails updating and requesting information when the device was unused. Appropriate and supportive, and the information derived sent to my consultant at regular intervals.
By Carlos
Response from Fourth Frontier· Feb 22, 2023
Thanks so much for sharing your feedback and leaving 5 stars about our service. We’re glad to hear that our team’s performance exceeded your expectations. We hope to serve you in furture
It has everything anyone needs. It is practical and reliable. I am using it as a training monitor and as a health monitor. I have tried so many from galaxy, Huawei, tag heuer watches and i own 3rd generation Oura ring. All not even close.
By Mazen S.
I got several normal readings, then felt off and was concerned I was having an episode.. and sure enough it picked up my a change in my rhythm. I am ordering a second one for my wife, we are both so surprised how convenient and well this works without having to wear a holter monitor or other larger devices. Honestly it’s also reassuring and gives peace of mind being able to check when you feel off at any time. I keep it with me. It syncs up easily to my phone and I can quickly download new readings. My doctor was pleasantly surprised with the detailed readouts and he asked me to add notes to the end of each one (standing, sitting, how I feel) for extra home monitoring, then I emailed them to him. It’s easy to add notes in the app to each individual reading. To turn it on you hold down the button for five seconds and then turn it off. Very simple. I researched several of these before choosing this one and I’m glad I did. This is such an easy way to monitor at home and have extra data for your doctor, it really could save your life. Pros: Medically accurate (I do the reading on my chest) and it stood up to my doctors scrutiny. Holds charge well, I don’t need to plug it in very often and I use it daily. Shipped quickly. Very compact and portable, it’s the size of my palm. It's easy for me to take it with me when I go out. Also comes with a simple to understand instruction booklet. Cons: I honestly can’t think of any, for what it is.. it does a great job
By AP
Response from Fourth Frontier· Feb 22, 2023
Thank you for leaving a 5-Stars review. We at Fourth Frontier continuously strive to serve you better. We are glad that we are able to provide you the best of heart monitoring service. We look forward to serving you in the future
