After performing the steps under “Preparing the Watch for Outdoor Use”, you need to perform the procedure below in order to use the watch for heart rate measurement.

1.Tap the center of the “Heart Rate” watch face.

2.Tap “Reset”.

3.Input your birth year and month.

1.

On the “Birth Year” screen that appears, use and to specify your birth year, and then tap .

2.

On the “Birth Month” screen that appears, use and to specify your birth month, and then tap .

• The birth information you specify here is used to calculate the Total Maximum Heart Rate automatically based on your age.

• If you already know your maximum heart rate and wish to input it manually, refer to “Total Maximum Heart Rate”.

4.Input your resting heart rate.

1.

After performing the procedure described under “Measuring Your Resting Heart Rate”, use and to specify your heart rate and then tap .

• Input a resting heart rate within the range of 40 to 220.

Measuring Your Resting Heart Rate

You need to input your resting heart rate because the watch uses it as basic data when performing a variety of calculations in accordance with measured heart rate data. Despite its name, your resting heart rate is not necessarily your heart rate any time you are at rest.

This section explains the proper procedure for determining your resting heart rate. Carefully read the information here and apply it when actually determining your resting heart rate.

To measure your resting heart rate

1.Make sure you are in either of the relaxed states described by (a) and (b) below.

• State (a) is recommended for best measurement accuracy.

(a)

The first thing in the morning when you wake up naturally, remain in bed without rising.

(b)

If you are already up, lay down, close your eyes, and rest for at least five minutes.

2.Remaining at rest, place your index, middle, and ring fingertips or just your index and middle fingertips over your radial artery on the thumb side of your wrist (Figure 1).

• Your radial artery is located in the area bounded by your hand’s wrist fold (), wrist tendon (), and the bone on the side of your wrist (), as shown in Figure 2.

• Slightly shift your fingers around on your wrist and adjust their pressure until you can feel your pulse.

• If you have a hard time finding your pulse on your wrist, you can also try feeling it with your fingers on the side of your neck, or by placing your hand over your heart.

3.Remaining at rest, count the number of beats for one minute.

• You could also count the number of beats for 15 seconds, and then multiply by four.