The Frontier X Plus App pairs with US FDA Cleared Frontier X Plus (510(k) number: K240794), an ambulatory ECG monitoring device intended to record, store, and transfer single-channel electrocardiogram (ECG) rhythms for evaluation and long-term monitoring.

The Frontier X Plus is a wearable ECG recorder and display product, worn comfortably via a chest strap. The Frontier X Plus phone app connects to the device via bluetooth to visualize ECG and wellness parameters in real time, sync recorded data, and review your heart health anytime, anywhere.

Key Features
1. Medical-Grade ECG Monitoring
Capture single-lead, medical-grade ECG data anytime—without wires, patches, or adhesives. Supports both real-time and stored monitoring.
2. Real-Time AFib Detection & Arrhythmia Burden Analysis
Get clinically validated insights:
• Detect AFib, bradycardia, and tachycardia in real time
• Beat-by-beat ECG analysis
• Rhythm trends across activity and sleep
3. Arrhythmia Detection Across Sleep, Rest & Active Activities
Medical-grade ECG detects irregular heart rhythms across all phases of your day, including sleep, rest, and active activity.
4. Shareable ECG Link
Easily share Live ECG link with your doctor for remote monitoring
5. Fast, Hassle-Free Setup
Wear the device on your chest, pair it with the app via Bluetooth, and begin monitoring.

Who It’s For
• Individuals with diagnosed arrhythmias or heart conditions
• Post-cardiac procedure patients
• Athletes and fitness-focused individuals need precise heart rhythm tracking

About Frontier X Plus
Developed by Fourth Frontier, Frontier X Plus is the world’s first FDA 510(k)-cleared wearable ECG device engineered for real-world ambulatory cardiac monitoring. With over 18,000 users, Fourth Frontier has successfully detected more than 26,000 + cardiac events, supporting proactive and effective heart health management.