💗 Heart Rate Zones

Visualize Your Training Intensity

See exactly how much time you spent in each heart rate training zone. Perfect for understanding whether your workout hit the intended intensity targets.

How it works

FitGlue analyzes your heart rate data and calculates time spent in each of the 5 standard training zones:

• Zone 1 (Recovery): 50-60% max HR - Easy warmup/cooldown
• Zone 2 (Endurance): 60-70% max HR - Fat burning, base building
• Zone 3 (Tempo): 70-80% max HR - Aerobic capacity
• Zone 4 (Threshold): 80-90% max HR - Lactate threshold
• Zone 5 (VO2 Max): 90-100% max HR - Maximum effort

Configurable Display

Choose between emoji bars (visual progress), percentages, or text descriptions. Set your personal max HR for accurate zone calculations.