Heart Rate Features; Wrist-Based Heart Rate; Wearing The Device; Tips For Erratic Heart Rate Data - Garmin DESCENT MK2I Owner's Manual

Table of Contents

The Descent Mk2i device has a wrist-based heart rate monitor and is also compatible with chest heart rate

monitors (sold separately). You can view heart rate data on the heart rate widget. If both wrist-based heart rate

and chest heart rate data are available when you start an activity, your device uses the chest heart rate data.

Wrist-based Heart Rate

Wearing the Device

• Wear the device above your wrist bone.

NOTE: The device should be snug but comfortable. For more accurate heart rate readings, the device should

not move while running or exercising. For pulse oximeter readings, you should remain motionless.

NOTE: While diving, the device should stay in contact with your skin, and it should not bump into other wrist-

worn devices.

NOTE: The optical sensor is located on the back of the device.

• See

Tips for Erratic Heart Rate Data, page 62

• See

Tips for Erratic Pulse Oximeter Data, page 78

• For more information about accuracy, go to garmin.com/ataccuracy.

• For more information about device wear and care, go to www.garmin.com/fitandcare.

Tips for Erratic Heart Rate Data

If the heart rate data is erratic or does not appear, you can try these tips.

• Clean and dry your arm before putting on the device.

• Avoid wearing sunscreen, lotion, and insect repellent under the device.

• Avoid scratching the heart rate sensor on the back of the device.

• Wear the device above your wrist bone. The device should be snug but comfortable.

• Wait until the

icon is solid before starting your activity.

• Warm up for 5 to 10 minutes and get a heart rate reading before starting your activity.

NOTE: In cold environments, warm up indoors.

• Rinse the device with fresh water after each workout.

Viewing the Heart Rate Widget

1 From the watch face, press UP or DOWN to view the heart rate widget.

NOTE: You may need to add the widget to your widget loop

2 Press START to view your current heart rate in beats per minute (bpm) and a graph of your heart rate for the

last 4 hours.

3 Press DOWN to view your average resting heart rate values for the last 7 days.