1. Why do we need resting heart rate when we have dynamic heart rate?
Dynamic Heart Rate = Real-time heart rate (changes at any time)
Resting Heart Rate = The most basic, stable, and true reflection of your actual health baseline
Without resting heart rate, you cannot judge:
Whether your basic cardiac function is good or not
Whether your fast heart rate today is normal or abnormal
Whether your body is fatigued, inflamed, or has an underlying illness
Whether your long-term health is improving or deteriorating
In a nutshell: Dynamic heart rate shows the present, resting heart rate shows the fundamentals
2. Differences between Resting Heart Rate and Dynamic Heart Rate
1. Resting Heart Rate
Heart rate when awake, quiet, stationary, and relaxed
Smart bracelets usually take: the lowest heart rate during deep sleep in the early morning / resting heart rate after waking up
Only one baseline value per day
Reflects: cardiopulmonary capacity, sleep quality, fatigue level, health baseline
2. Dynamic Heart Rate (Continuous Heart Rate)
24-hour uninterrupted measurement
Immediately rises when walking, exercising, working, or experiencing emotional changes
Data is a continuous fluctuating curve
Reflects: current activity intensity, immediate stress, exercise status
3. Correlation between Resting Heart Rate and Dynamic Heart Rate
Resting heart rate is the baseline, and dynamic heart rate is the value fluctuating up and down around it
Smart bracelets must use dynamic heart rate data to calculate resting heart rate
Elevated resting heart rate → overall dynamic heart rate will increase throughout the day
Decreased resting heart rate → indicates improved cardiopulmonary function and a more relaxed body
Dynamic heart rate during exercise = resting heart rate × activity intensity multiple
4. What hidden health risks can be seen from these two data?
1. Abnormal resting heart rate risks
Consistently > 85: fatigue, poor sleep, anemia, hyperthyroidism, high cardiac load
Sudden increase of 10+: body inflammation, precursor to a cold, underlying infection, extreme stress
Consistently < 45 (non-athletes): bradycardia, need to check heart health
2. Abnormal dynamic heart rate risks
Sudden spike even at rest: premature beats, arrhythmia, anxiety, autonomic nervous system disorder
Fluctuations in heart rate at night: sleep apnea (snoring and hypoxia)
Failure to recover after exercise: impaired cardiac recovery ability
3. The most accurate judgment comes from looking at both (important)
High resting heart rate + easily elevated daily dynamic heart rate → poor cardiopulmonary function, physical weakness, sub-health
Gradually increasing resting heart rate → long-term overfatigue, declining health
Stable resting heart rate + natural dynamic fluctuations → good physical condition
5. Simplest Summary
Resting Heart Rate = See your underlying health (long-term)
Dynamic Heart Rate = See your current state (short-term)
Using both together allows you to truly judge cardiac stress, fatigue levels, and risks of underlying diseases.
Fit Monster Smart Bracelet has both dynamic heart rate and resting heart rate collection functions.