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Suunto 3 Fitness
3.22. Speed and distance calibration
Suunto 3 Fitness is able to measure running and walking speed and distance using the built-
in accelerometer of the watch. The accelerometer needs to be calibrated to your personal
stride length and movement. Uncalibrated, the watch cannot correctly measure speed and
distanced.
The easiest way to calibrate your watch is to record the first running or walking exercises with
connected GPS (See 3.20.2. Connected GPS). When using the GPS of your mobile phone, the
speed and distance calibration is done automatically in the background.
To manually calibrate your watch:
1. Record a walking and running exercise with a known distance (for example on a track) and
for at least 12 minutes, see 3.20. Recording an exercise
2. Edit the distance after your exercise in the summary by pressing the middle button when
the distance is highlighted.
NOTE: To get the most accurate result, manually calibrate your watch separately for
both running and walking.
3.23. Sport modes
Your watch comes with a wide range of pre-defined sport modes. The modes are designed
for specific activities and purposes, from a casual walk outside to cross country skiing.
When you record an exercise (see 3.20. Recording an exercise), you can scroll up and down
to see the short list of sport modes. Select the Other icon at the end of the short list to view
the complete list of sport modes.
Each sport mode has a unique set of displays and views.
3.24. Swimming
You can use your Suunto 3 Fitness for swimming in pools.
When you use a pool swimming sport mode, the watch relies on the pool length to determine
distance. You can change the pool length as needed under the sport mode options before
you start swimming.
NOTE: The wrist heart rate sensor may not work under water. Use a chest heart rate
sensor to get a more reliable HR tracking.
3.25. Stress and recovery
Your resources are a good indication of your body's energy levels and translate into your
ability to handle stress and cope with the day's challenges.
Stress and physical activity deplete your resources, while rest and recovery restore them.
Good sleep is an essential part of ensuring your body has the resources it needs.
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