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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 | Envi

Detalle de producto

$425.88

Frontier XVendido por Amazon · enviado por Envi

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

3,8122 reseñas

$425.88

Entrega garantizadaEn stock

Salida a tu país: 19-26 de Septiembre del 2026

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Sobre este producto

ATHLETE-READY, WATERPROOF DESIGN: Comfortable elastic chest strap (with silicone dots) for a secure fit during any activity. Fully waterproof up to 1.5m—ideal for running, cycling, swimming, rowing, or gym workouts. Includes 1-year warranty for peace of mind. 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. 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. 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. 24/7 CONTINUOUS HEART HEALTH MONITORING: Provides continuous heart rate Monitoring, Breathing Rate, and Strain Monitoring for athletes, fitness enthusiasts, and health-conscious users—including during sleep and recovery.

Marca: Frontier X
Modelo: B0CRB6CC2X
Categoría aduanal: Sports & Outdoors

Reseñas

3,8

122 reseñas

13 con comentario

513%
455%
330%
22%
1

Nalaka
2 de mayo de 2026
Impressive technology that is beyond what others offer
I bought this device to monitor my cardiac stress level while exercising. To my knowledge, it is the only device on the market that essentially functions like a real-time cardiac exercise stress test. While it does not make that claim for obvious FDA reasons, it performs many of the same functions, albeit using the word "heart strain" as opposed to "cardiac ischemia detection using ST-segment changes", which is fair. Basically, ST-segment changes greater than a certain amount can indicate cardiac ischemia from coronary artery disease and risk of sudden cardiac death while exercising. Jim Fixx, the exercise guru who wrote the 1977 best-selling book The Complete Book of Running died of a heart attack while running at age 52. The purpose of a $700 cardiac exercise stress test is to detect this in a highly monitored setting with a nurse, etc. For daily exercise, I think a device like this one is quite useful. While not as accurate as a 12-lead cardiac exercise stress test, it does capture real-time EKG data, monitor real-time ST-segment changes, and you can configure it to vibrate if ST-segment changes reach a certain level, and then dial back your exercise accordingly to stay in a safe range. Some degree of cardiac stress is inevitable with exercise. The device has worked great--easy to use, comfortable, and it gives me tremendous peace of mind when I am exercising. It is not a guarantee and it is not fool-proof, of course, but it is better than nothing. I'm really glad I bought it and am thinking of buying it as a gift for some friends.Ver másVer menos
5 personas la encontraron útil
JD
22 de diciembre de 2025
Great Device
Initially, I had some issue authenticating for a day due to technical issues, so the device was essentially a paperweight during setup. That experience was frustrating and highlighted real gaps in their authentication flow and error handling.However, after providing detailed and constructive feedback, I was genuinely surprised by how quickly and thoughtfully the Fourth Frontier team responded. They acknowledged the issue, explained the root cause, and outlined concrete mitigation steps and roadmap improvements. Not many companies take technical feedback this seriously or move this fast, and that responsiveness was refreshing and earned my reconsideration.Now that everything is resolved, I use the Frontier X2 daily. From a technology standpoint, this device is in a completely different category than standard wearables. The level of insight it provides into cardiac performance during high intensity workouts is something I have not seen elsewhere. The ability to capture and export raw ECG data is especially valuable, as it allows me to perform my own deep analysis using custom tools and applications. For anyone serious about performance, physiology, or personal research, that capability alone is priceless.This is a powerful device built for serious users. While the initial onboarding experience needs continued improvement, the underlying technology is excellent, and the team’s willingness to listen and improve gives me confidence in the product’s future.Ver másVer menos
6 personas la encontraron útil
Jonathan H Loring
22 de julio de 2026
Bricked and no longer under warranty
I bought this item on July 8 2025. It stopped turning on July 16 2026. Fourth Frontier won't replace it because it has a one year warranty. This item is too expensive to have had it for just over one year and then it stopped working and not be eligible for replacement. Buyer beware.Ver másVer menos
Sci Guy
24 de noviembre de 2025
Great resource for those with AF
As an athlete having had two ablations for AF, this is a primary source for gathering all my HR workout data. While my Garmin can capture AF if I stop, remain still, use two fingers on the bezel, and think pleasant thoughts for 30 seconds...this Frontier monitor continues to capture HR data even if I am not aware there are erroneous rhythms. This can be an invaluable source of information if a significant event occurs. After eight months of nearly daily use, the unit has been flawless. While the accuracy may not be at the research level, it does provide good, accurate, long-view trends.My only complaint are the number of features it can measure vs. having to pay for a "premium" level subscription in order to view them.Ver másVer menos
4 personas la encontraron útil
Mike Tillman
24 hour continuous ECG recording.
This pairs to most fitness devices via Bluetooth and shares data with most fitness apps as well. It has lost of built functionality, records ECG continuously up to 24 hour, set up and lower HR alarms, mark significant HR events, download ECG to PDF, upload ECG file to MyChart which your cardiologist can access, and view health trends. All athletes should be wearing a Frontier X2 as they are more likely to experience irregular heart arrhythmia such as Afib. Smart watches can only record a 30sec ECG snapshot was as the Frontier X2 can record a continuous ECG during the whole workout. Since I’ve been diagnosed with Afib this has been a game changer for me over a standard HR monitor strap. It is a heart value for the money. Price range $378-$599.Ver másVer menos
3 personas la encontraron útil
Zachary Rosenbaum
26 de noviembre de 2025
Good hardware but bad software and usability
Pros:1) Accuracy is better than average monitors, especially for spikes in heart rate.Cons:1) Doesn't work correctly without internet, while you can see a live view of statistics, it won't be able to start a new activity recording.2) It's stingy on data, for example it might rate your HRV and give you a number, but its a rather useless number without providing a reference distribution for this instrument3) Doesn't use usb-c.4) Some of its functionality is blocked behind a rather expensive paywall.Ver másVer menos
10 personas la encontraron útil