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Frontier X2 Smart Heart Rate Monitor Chest Strap, Wearable Heart Rate Monitor with Strain, Breathing Rate, Real Time Vibration Alerts and 20+ Fitness Activities with Continuous Heart Monitoring

  • Based on 27 reviews
Condition: New
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$434.00 Why this price?
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Aug 17
Order within 16 hours and 44 minutes
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Features

  • 24/7 CONTINUOUS HEART HEALTH MONITORING: Provides continuous heart rate Monitoring, Breathing Rate, and Strain Monitoring for athletes, fitness enthusiasts, and health-conscious usersincluding during sleep and recovery
  • REAL-TIME VIBRATION ALERTS & TRAINING ZONES: Stay in your optimal heart zone with custom alerts for heart rate, breathing rate, and strain. Continuous heart rate monitoring prevents over-exertion or under-training, helping athletes and wellness users train safely and effectively.
  • PRO-LEVEL ACCURACY & ANALYTICS: Syncs with the Fourth Frontier app and web dashboard to record heart health metrics (Strain, HRV, Training Load, etc.). Share data instantly with coaches or doctors.
  • BLUETOOTH WEARABLE WITH APP/DEVICE COMPATIBILITY: Pairs via Bluetooth 5.0 (3 faster) to most fitness devices and phones. Works with iOS/Android apps, Apple Watch, Garmin, Peloton, Zwift, and more. Stream and review data live or later for in-depth training feedback.
  • ATHLETE-READY, WATERPROOF DESIGN: Comfortable elastic chest strap (with silicone dots) for a secure fit during any activity. Fully waterproof up to 1.5mideal for running, cycling, swimming, rowing, or gym workouts. Includes 1-year warranty for peace of mind.

Brand: Frontier X


Material: Plastic, Stainless Steel


Color: Black


Compatible Devices: Desktops, Laptops, Smartphones, Tablets


Screen Size: 1 Inches


Item Weight: 25 Grams


Sensor Type: ECG


Battery Description: Lithium-Ion Polymer


Number of Items: 1


Number of Packs: 1


Compatible Devices: Desktops, Laptops, Smartphones, Tablets


Sensor Type: ECG


Battery Description: Lithium-Ion Polymer


Display Size: 1 Inches


Item Weight: 25 Grams


Size: Small


Material Type: Plastic, Stainless Steel


Color: Black


Brand Name: Frontier X


Model Number: FX2


Manufacturer: Fourth Frontier Technologies LLC


Manufacturer Part Number: Frontier X2


Team Name: Frontier X


Warranty Description: 1 Year Manufacturer Warranty from the date of purchase


Included Components: 1x Chest Strap, 1x Frontier X2, 1 x Micro USB Cable


Item Type Name: Heart Rate Monitors


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Aug 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Accurate!
Unfortunately, watches have never been able to read my pulse. I don't have the strongest pulse on my wrist. This device on a chest strap is about 99% accurate, compared to watches which are only about 80-90% accurate. I have a heart condition so I wanted a more accurate way to track my heart for my doctor. It also runs a continuous monitor ECG during workouts which is pretty cool. There are additional metrics such as heart strain and heart rhythm which I’m trying to figure out. It also syncs up the heart rate with my Garmin fairly easily so I use it while running. I was able to catch what my heart does while working a 4-hour shift, and what happens while I sleep! I just use the "indoor activity" option whenever I want to track myself while resting, working, or sleeping, and I was able to show the ECG strips from the web app to my doctor. ... show more
Reviewed in the United States on March 27, 2024 by Neha

  • My doctor accepts the report
The Frontier X2 works amazingly well, especially if you need some of its key features. As an example, it allows you to send your doctor a ECG trace which is a very important feature. Frontier X2 is a great choice for people concerned about their heart health. It's not a medical device but it gives you all the data which is required to measure your heart health such as EKG monitoring, Heart Rhythm, Heart Strain etc... Frontier X2 work well for recording HRV over the course of a full day and even during sleep. You get the full ECG recording. It gives you 24 hours continuous EKG monitoring which makes it the only device with Continuous Heart Monitoring Feature. Fourth Frontier keeps on updating firmware to address problems if any. For Rebooting, You have to press and hold the button long enough to get a forced reboot in order to start the device. Finally, Kudos to Fourth Frontier Customer Support team. They are available 24*7 to address your queries. ... show more
Reviewed in the United States on March 20, 2024 by Reddy

  • Severe Rash from HRM Chest Strap (Updated)
The chest strap created a severe rash on my chest. I requested a replacement chest strap from the company (which costs $20 if purchased separately), but they balked. I provided a photo showing the rash, but that was not good enough for them. They asked me to wash the strap and wait for the rash to heal before wearing it again. Nope! I am returning it and not waiting for the strap to injure me again. ================================================================================== Update on May 20, 2024: I am upgrading my product review to 3 stars due to the improved customer service response I have received from the company; this has nothing to do with the quality of the X2 HRM/ECG. Since I posted my first review, the company has reached out to me multiple times in an effort to make right on the chest strap issue. They have offered a free replacement strap, a full refund, and a discount on the purchase of another X2. I accept that they are truly remorseful for the way they handled the chest strap, and believe they *may* have learned from this experience and will do better at customer service in the future. Time will tell... I do not need the free replacement strap and do not presently plan to take advantage of the purchase discount offer. ... show more
Reviewed in the United States on May 8, 2024 by James K. Clements

  • Been using and testing this since April
Is it expensive, yes,but it is worth it ,YES . First off, this monitor is well made,I own several heart chest straps,even arm bands and this monitor is the best in that is is really solid ,you can tell it isn't cheap the first time you hold it. The strap is nice too .,doesn't irritate. Only thing is I didn't get cap to cover the charging port. I would preferred they used USB C port to charge . Charging cable is very well made ,but if you lose it you'll have to contact company for replacement as its not a common connection. Rare occasions it doesn't sync, but it eventually does .No stars taken away for these minor details because they aren't doing the work. You can record your data without using app or needing Bluetooth or WiFi or any signal,this feature alone is worth it. To start recording just hit the blue button twice and it will vibrate twice to let you know recording has started. Reason the button takes some pressure to press is----> when monitor is in use your chest won't shut it off when bending over or skin folding onto button or whatever ,this avoids accidentally activating the button again or shutting it down. Then when done with workout you bring up app and sync your data. App will sync data and erase data on heart strap so it will be ready for next use,so you don't have to do that step yourself,the app does it for you. Now you can view your data on app or internet, nice touch to have option to view on a larger screen from PC. Plus the explanations /meanings of the readings of your data is really good,they do a great job explaining what everything means. Ok ,let's talk about the ability to record and send your ECG reading to your doctor other than that's a HUGE PLUS ! Continuesly heart monitoring and live sharing is a huge plus and I don't think people understand how important this is. Most monitors only monitor every 1 minute intervals or more and can't do that for 24hrs straight and record it at same time and data is very accurate! Is it costly, yes,but I say it's worth it . ... show more
Reviewed in the United States on July 30, 2024 by 🌟 Tannhäuser Gate 🌟

  • Overpriced test device
This 600$ device uses a micro usb connection in 2024. That alone should raise eyebrows. The reliability is poor at best and it doesn't have basic functions such as measuring O2 sat, which a smart watch at a quarter of the price can do. I'm trying to think of what the use-case for this device is, but at anywhere near it's current price I cannot find one. ... show more
Reviewed in the United States on August 14, 2024 by Cielo Medica

  • Good ECG readings while running. Best ECG Device in USA.
I’m pleasantly surprised with the ECG quality while running. I was a little skeptical when I bought this and thought that there was no way the ECG would come through clean while running. I’ve worked with ECGs for years stress testing patients and know that ECG is often bad when jogging/running. This actually gives a clearer reading than the hospital ECGs I use at work! It’s only 1 lead, but the quality is surprisingly good. The chest strap does a good job of keeping the electrodes steady. ... show more
Reviewed in the United States on May 20, 2024 by Alaika Sridhar

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