Fixed heart rate display layout issues Added heart rate-synced sound during workouts

Minor Upgrade 1. Improved Stability Bluetooth connectivity and heart-rate measurement status have been improved for a more stable experience. 2. More Detailed Heart-Rate Zones Workout intensity is now divided into five heart-rate zones for more detailed tracking.

Stabilized real-time heart rate display with one-second updates Improved filtering of invalid readings and sudden heart rate spikes Enhanced Bluetooth monitor selection, connection status, and automatic reconnection Added workout duration and Zone 1–4 time tracking Maintained heart rate monitoring in PiP and background modes Improved graph and analysis screen readability Added age-based or manual maximum heart rate and zone settings Added on-device workout storage, backup, restore, and deletion features

■ Major Performance Improvements - Faster graph rendering Heart rate graphs now display significantly faster and more smoothly. Hundreds of individual graph elements have been replaced with a single high-performance rendering pipeline. - Instant date selection Selecting a date now loads data immediately. A pre-built date index enables near-instant data lookup. - Reduced battery consumption and heat Optimized graph refresh intervals reduce unnecessary computation, resulting in less device heat during extended use. - Improved app stability File save and load operations now run in the background, eliminating UI freezes. Internal code structure has been refactored for overall reliability.

1. Improved readability in Dark Mode Enhanced color contrast and visual clarity to ensure better readability of text and UI elements in Dark Mode. 2. Custom maximum heart rate setting The maximum heart rate is now calculated based on age by default, with an option for users to manually set their own maximum heart rate if desired. 3. Optimized event view for better performance To reduce system load and improve responsiveness, the event view now displays data on a per-day basis only.

• PiP Mode Support: You can view your real-time heart rate while using other apps. • Workout Time Tracking: The app records its start time, so if you launch it at the beginning of your workout, you can easily track your exercise duration.

By entering your age, your personal maximum heart rate (MaxHR) will be calculated automatically. The 60–80% range of your MaxHR is recommended as the ideal zone for aerobic exercise.

A 1-minute graph has been added, allowing you to intuitively track second-by-second changes in your heart rate. When switching to the 24-hour graph, real-time measurement is paused to reduce system load and ensure smoother graph viewing.