On Garmin watches, “Unbalanced” means your seven-day average HRV has moved outside your own baseline Baseline Your own usual HRV level and range, built from weeks of readings taken the same way. Comparing a reading with your baseline says more than comparing it with other people. More about Baseline range, either above it or below it. It is a prompt to look at what changed in your training, sleep, stress or health over the past week, not a verdict on your heart.
How Garmin’s HRV Status works
Garmin’s manual says the watch analyses wrist heart rate readings while you sleep. After about three weeks of consistent sleep data, it starts comparing your seven-day average HRV with your personal baseline range. The labels are:
| Status | What Garmin’s manual says |
|---|---|
| Balanced (green) | Your seven-day average HRV is within your baseline range. |
| Unbalanced (orange) | Your seven-day average HRV is above or below your baseline range. |
| Low (red) | Your seven-day average HRV is well below your baseline range. |
| Poor | Your HRV values are averaging well below the normal range for your age. |
| No status | There is not enough data for a seven-day average. |
Garmin says an unbalanced or poor status may be a sign of fatigue, greater recovery needs or increased stress. It does not publish the formula behind its HRV number or its baseline, so the value cannot be matched exactly to RMSSD RMSSD Root mean square of successive differences: an HRV metric built from how much each heartbeat interval differs from the next. It mainly reflects vagal activity. More about RMSSD or SDNN SDNN The standard deviation of all NN intervals in a recording, in milliseconds. It measures overall variability, and its value depends strongly on how long the recording lasts. More about SDNN tables. See the HRV by device guide for how other brands report HRV.
Because the status uses a seven-day average, it reacts slowly. One bad night rarely turns it orange. A week of change does.
Below your range
Garmin lists training, physical activity, sleep, nutrition and daily habits as things that affect HRV. So a lower week usually has an ordinary explanation: a hard training block, short or broken sleep, a few drinks, a stressful stretch or a cold coming on. The what affects HRV guide and the training page go through each one.
Researchers have used the same seven-day idea for years. In a case study of two elite triathletes followed for 77 days, one athlete performed poorly in a key race and was diagnosed as overreached (worn down by too much training). That athlete’s seven-day average HRV declined in the weeks before the race. The other athlete’s average stayed stable.
Above your range
A rise can follow an easier week or better sleep, but it can also follow too much training. In a study of 21 trained male triathletes, 13 did three weeks of overload training. All 13 got slower in a running test, and their weekly average HRV, measured daily at rest, rose more than in the 8 who trained normally. The rise reversed when they cut back their training. A review of elite endurance athletes also found that both rises and falls in HRV have been linked with poor adaptation to training. The page on why your HRV is suddenly high covers other causes, including measurement errors.
What to do with an Unbalanced status
- Check the direction. Garmin Connect shows whether the average sits above or below your range.
- List what changed this week. Training load, sleep, alcohol, travel, stress and any signs of a cold.
- Check how you feel. Note your mood, muscle soreness, resting heart rate Resting heart rate How many times your heart beats per minute while you are fully at rest. For adults it is usually 60 to 100 beats per minute, and lower in well-trained athletes. More about Resting heart rate and how training sessions went.
- Adjust if there is a clear cause. After a hard block, a few easier days and more sleep are a sensible response. Then watch whether the status returns to balanced.
- Watch the trend over several weeks. Judge the pattern, not one week’s colour. The lesson on building your HRV baseline explains how to read trends.
When to talk to a doctor
HRV Status is a wellness estimate and cannot diagnose anything. Talk to a doctor if your HRV stays below your range for weeks with no clear reason and you feel unwell or unusually tired. Also see a doctor if you notice palpitations, dizziness, fainting, chest pain or shortness of breath, whatever the status shows.