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Minutes of data






5 Billion+ Heart Beats Recorded

The World's First Smart Heart Monitor

The Frontier X2 is a chest worn wearable, that uses your physiological data to provide customised insights tailored for you. When you train with a smart heart monitor, it gives you precise and dependable data, helping you assess the intensity of your exercise.

What makes the Frontier X2 so smart?

Unlike a regular heart rate monitor, which typically only transmits heart rate, the Frontier X2 records, stores, and uses ECG (during both exercise and rest) to calculate your Heart Rate, Strain, Breathing Rate, as well as biomechanical parameters like Cadence (step rate) and Body Shock.

Why long distance cyclists love the Frontier X2

At Fourth Frontier,
we grow, when you grow.

We're committed to the success of our retail partners. We offer:

  • PoS Training
  • Website to Brick & Mortar Price Parity
  • Hassle Free Inventory and Returns Processing
  • High Retailer Margins
  • Pricing Guidance
  • Marketing Collaterals
  • Dedicated Customer Support
  • Product Availability, Always

Tech Specifications

  • Heart: Heart Rate, Strain, HRV (Heart Rate Variability)
  • Performance: Breathing Rate, Training Load, Body Shock, Step Cadence, calories
Device size
  • Weight: 25 grams
  • Dimensions: 73mm x 24mm x 13mm
  • Water resistant up to 1.5 meters
  • Upto 24 hours of continuous usage
  • 12 - 15 days under typical usage
  • Full charge in under 45 minutes
  • Frontier X2 now has Bluetooth 5.0 for 3X speed and greater range.
  • 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 X2
  • Elastic Chest Strap
  • Micro USB Cable
  • 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.

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.

Feature the Frontier X2 in your store

For Retail Inquiries you can contact us via:

USA: +1 512 881 7266

UK & EEA: +44 20 3885 0356

India: +91 8310701847