User's Manual

You can watch the color gauge or data field during your run or view the summary on your Garmin Connect account after your run.
As with the other running dynamics data, ground contact time balance is a quantitative measurement to help you learn about your
running form.
Vertical Oscillation and Vertical Ratio Data
The data ranges for vertical oscillation and vertical ratio are slightly different depending on the sensor and whether it is positioned at
the chest (HRM-Tri or HRM-Run
™
accessories) or at the waist (Running Dynamics Pod accessory).
Color Zone Percentile in Zone Vertical Oscillation Range at
Chest
Vertical Oscillation Range at
Waist
Vertical Ratio at Chest Vertical Ratio at Waist
Purple >95 <6.4 cm <6.8 cm <6.1% <6.5%
Blue 70–95 6.4–8.1 cm 6.8–8.9 cm 6.1–7.4% 6.5–8.3%
Green 30–69 8.2–9.7 cm 9.0–10.9 cm 7.5–8.6% 8.4–10.0%
Orange 5–29 9.8–11.5 cm 11.0–13.0 cm 8.7–10.1% 10.1–11.9%
Red <5 >11.5 cm >13.0 cm >10.1% >11.9%
Tips for Missing Running Dynamics Data
If running dynamics data does not appear, you can try these
tips.
• Make sure you have a running dynamics accessory, such as
the HRM-Tri accessory.
Accessories with running dynamics have on the front of the
module.
• Pair the running dynamics accessory with your fēnix device
again, according to the instructions.
• If the running dynamics data display shows only zeros, make
sure the accessory is worn right-side up.
NOTE: Ground contact time and balance appears only while
running. It is not calculated while walking.
Performance Measurements
These performance measurements are estimates that can help
you track and understand your training activities and race
performances. The measurements require a few activities using
wrist-based heart rate or a compatible chest heart rate monitor.
Cycling performance measurements require a heart rate monitor
and a power meter.
These estimates are provided and supported by Firstbeat. For
more information, go to garmin.com/performance-data/running.
NOTE: The estimates may seem inaccurate at first. The device
requires you to complete a few activities to learn about your
performance.
VO2 max.: VO2 max. is the maximum volume of oxygen (in
milliliters) you can consume per minute per kilogram of body
weight at your maximum performance.
Predicted race times: Your device uses the VO2 max. estimate
and your training history to provide a target race time based
on your current state of fitness.
HRV stress test: The heart rate variability (HRV) stress test
requires a Garmin chest heart rate monitor. The device
records your heart rate variability while standing still for 3
minutes. It provides your overall stress level. The scale is 1 to
100, and a lower score indicates a lower stress level.
Performance condition: Your performance condition is a real-
time assessment after 6 to 20 minutes of activity. It can be
added as a data field so you can view your performance
condition during the rest of your activity. It compares your
real-time condition to your average fitness level.
Functional threshold power (FTP): The device uses your user
profile information from the initial setup to estimate your FTP.
For a more accurate rating, you can conduct a guided test.
Lactate threshold: Lactate threshold requires a chest heart rate
monitor. Lactate threshold is the point where your muscles
start to rapidly fatigue. Your device measures your lactate
threshold level using heart rate data and pace.
Turning Off Performance Notifications
Some performance notifications appear upon completion of your
activity. Some performance notifications appear during an
activity or when you achieve a new performance measurement,
such as a new VO2 max. estimate. You can turn off the
performance condition feature to avoid some of these
notifications.
1
Hold MENU.
2
Select Physiological Metrics > Perf. Condition.
Detecting Performance Measurements Automatically
The Auto Detection feature is turned on by default. The device
can automatically detect your maximum heart rate and lactate
threshold during an activity. When paired with a compatible
power meter, the device can automatically detect your functional
threshold power (FTP) during an activity.
NOTE: The device detects a maximum heart rate only when
your heart rate is higher than the value set in your user profile.
1
Hold MENU.
2
Select Physiological Metrics > Auto Detection.
3
Select an option.
Syncing Activities and Performance Measurements
You can sync activities and performance measurements from
other Garmin devices to your fēnix device using your Garmin
Connect account. This allows your device to more accurately
reflect your training status and fitness. For example, you can
record a ride with an Edge device, and view your activity details
and overall training load on your fēnix device.
1
Hold MENU.
2
Select Physiological Metrics > TrueUp.
When you sync your device with your smartphone, recent
activities and performance measurements from your other
Garmin devices appear on your fēnix device.
About VO2 Max. Estimates
VO2 max. is the maximum volume of oxygen (in milliliters) you
can consume per minute per kilogram of body weight at your
maximum performance. In simple terms, VO2 max. is an
indication of athletic performance and should increase as your
level of fitness improves. The fēnix device requires wrist-based
heart rate or a compatible chest heart rate monitor to display
your VO2 max. estimate. The device has separate VO2 max.
estimates for running and cycling. You must run either outside
with GPS or ride with a compatible power meter at a moderate
level of intensity for several minutes to get an accurate VO2
max. estimate.
On the device, your VO2 max. estimate appears as a number,
description, and position on the color gauge. On your Garmin
Connect account, you can view additional details about your
VO2 max. estimate, including your fitness age. Your fitness age
gives you an idea of how your fitness compares with a person of
16 Heart Rate Features