Always-On Heart Rate vVARY

This Wear OS application shows the following metrics while keeping the device awake:
• Heart rate (bpm).
• Time (hours and minutes).
• Duration (minutes and seconds).
• Average and maximum heart rate for the last 60 seconds.
• Battery percentage.

Gesture Control:
• Swipe left to open Settings to customize your experience.
• Swipe right for the History tab, showing the maximum and average heart rate for 1-minute intervals and for the whole workout.
• Swipe up to change font color to white and increase thickness for better readability in sunlight (increases power consumption).
• Swipe down from the middle to check power consumption (~8%/hour on a 44mm Galaxy Watch 6).
• Tap to enlarge heart rate font.

Text-to-Speech:
• The app can read your heart rate aloud when it exceeds user-defined HRmax or HRmin limits.
• Tap the screen to hear the current time.
• Supports most languages.

Important Notes:
• Optimize your workout by setting HRmax and HRmin. The app alerts you with visual, audio (beeps, voice), and tactile notifications every 2 seconds when HR exceeds HRmax or drops below HRmin.
• The duration metric can either show the total time or only the time when your heart rate exceeded the HRmin limit, based on your preference.
• Set HRmin to 95% of your resting HR to wake you up if you fall asleep.
• All values update every second, except battery percentage and time (once a minute).
• The display stays on until you quit the app.
• For uninterrupted use, disable Samsung Health workout detection.

Power-Saving Features:
• Minimal UI design.
• No internet or GPS usage.
• You can quickly pause or resume the heart rate sensor and timer between exercises.
• Only the green subpixels are used to reduce power consumption.
• Adjust brightness using the rotating bezel or crown.
• Numbers shift up or down the screen in the first second of every minute (e.g., 11:05:00, then 11:06:00, etc.) to prevent screen burn-in and give a better sense of time.