As seen on
What our customers are saying
The frontier X measure what matters
![](http://uk.fourthfrontier.com/cdn/shop/files/BPM_150X_1_150X.webp?v=1690774115)
Heart Rate
![](http://uk.fourthfrontier.com/cdn/shop/files/HeartHalf_150X_1_150X.webp?v=1690774115)
Strain
![](http://uk.fourthfrontier.com/cdn/shop/files/BellSimpleRinging_150X_1_150X.webp?v=1690774115)
Real time alerts
![](http://uk.fourthfrontier.com/cdn/shop/files/ClockCounterClockwise_150X_1_150X.webp?v=1690774115)
Continuous ECG
![](http://uk.fourthfrontier.com/cdn/shop/files/PersonSimpleBike_150X_1_150X.webp?v=1690774115)
ECG During Exercise
![](http://uk.fourthfrontier.com/cdn/shop/files/Try30days.webp?v=1690774115&width=2400)
Try it for 14 days, risk free
Frontier X comes with a 14-day, risk-free money back guarantee and 1-year warranty.
24/7 Personalized Heart Care Protection
Device Specs
![](https://cdn.shopify.com/s/files/1/0301/4017/0375/files/Untitled_1030_x_273_px.png?v=1689095252)
METRICS
- Heart: Heart Rate, Strain, HRV (Heart Rate Variability)
- Performance: Breathing Rate, Training Load, Body Shock, Step Cadence
Device size
- Weight: 25 grams
- Dimensions: 73mm x 24mm x 13mm
- Water resistant up to 1.5 meters
Battery
- Upto 24 hours of continuous usage; 12 - 15 days under typical usage
- Full charge in under 45 minutes
CONNECTIVITY
- Bluetooth 4.0
- Frontier X App available for iOS and Android phones, as well as the Apple Watch
- Displays Heart Rate on compatible BLE sports watches
In the box
- Frontier X, 2 x Elastic Chest Straps, Micro USB Cable, 2 x Micro USB Rubber Covers, Quick Start Guide
Frontier X2 Certifications
Frontier X2 is manufactured in accordance with the highest international standards. Frontier X2 comes with 10+ device certifications along with the IP67 rating - waterproof and sweatproof up to 1.5 meters.
![](https://cdn.shopify.com/s/files/1/0301/4017/0375/files/Certification_Icons-06.png?v=1675062932)
![](https://cdn.shopify.com/s/files/1/0301/4017/0375/files/Certification_Icons-02.png?v=1675062932)
![](https://cdn.shopify.com/s/files/1/0301/4017/0375/files/Certification_Icons-03.png?v=1675062931)
![](https://cdn.shopify.com/s/files/1/0301/4017/0375/files/Certification_Icons-05.png?v=1675062931)
![](https://cdn.shopify.com/s/files/1/0301/4017/0375/files/Certification_Icons-04.png?v=1675062931)
![](https://cdn.shopify.com/s/files/1/0301/4017/0375/files/Certification_Icons-01.png?v=1675062931)
Frontier X2 Integrations
The Frontier X2 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 X2 metrics.
![](https://cdn.shopify.com/s/files/1/0580/5804/7522/files/Apple_Watch.png?v=1669013865)
![](https://cdn.shopify.com/s/files/1/0580/5804/7522/files/Garmin.png?v=1669013865)
![](https://cdn.shopify.com/s/files/1/0580/5804/7522/files/Peloton.png?v=1669013865)
![](https://cdn.shopify.com/s/files/1/0580/5804/7522/files/Zwift.png?v=1669013865)
![](https://cdn.shopify.com/s/files/1/0125/1498/4026/files/OG_logos-05.png?v=1718197783)
![](https://cdn.shopify.com/s/files/1/0125/1498/4026/files/OG_logos-04.png?v=1718197783)
![](https://cdn.shopify.com/s/files/1/0125/1498/4026/files/OG_logos-03.png?v=1718197783)
![](https://cdn.shopify.com/s/files/1/0125/1498/4026/files/OG_logos-02.png?v=1718197783)