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The barometer performance may be affected if the barometer
holes are obstructed. You can rinse the device with water to
clean the area.
After cleaning, allow the device to dry completely.
• Avoid holding handrails or skipping steps while climbing
stairs.
• In windy environments, cover the device with your sleeve or
jacket as strong gusts can cause erratic readings.
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.
• 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.
Tips for Erratic Pulse Oximeter Data
If the pulse oximeter data is erratic or does not appear, you can
try these tips.
• Remain motionless while the device reads your blood oxygen
saturation.
• Wear the device above your wrist bone. The device should
be snug but comfortable.
• Hold the arm wearing the device at heart level while the
device reads your blood oxygen saturation.
• Clean and dry your arm before putting on the device.
• Avoid wearing sunscreen, lotion, and insect repellent under
the device.
• Avoid scratching the optical sensor on the back of the device.
• Rinse the device with fresh water after each workout.
Tips for Improved Body Battery Data
• Your Body Battery level updates when you sync your device
with your Garmin Connect account.
• For more accurate results, wear the device while sleeping.
• Rest and good sleep charge your Body Battery.
• Strenuous activity, high stress, and poor sleep can cause
your Body Battery to drain.
• Food intake, as well as stimulants like caffeine, has no
impact on your Body Battery.
My device does not display the correct time
The device updates the time and date when you sync your
device to a computer or mobile device. You should sync your
device to receive the correct time when you change time zones,
and to update for daylight saving time.
1
Confirm that your computer or mobile device displays the
correct local time.
2
Select an option:
• Sync your device to a computer (Syncing Your Data with
Your Computer, page 7).
• Sync your device to a mobile device (Syncing Your Data
with the Garmin Connect App, page 7).
The time and date are updated automatically.
My device is in the wrong language
You can change the device language selection if you have
accidently selected the wrong language on the device.
1
On your smartphone, open the Garmin Connect app, select
or , and select Garmin Devices.
2
Select your device.
3
Select General > Language.
4
Select your language.
5
Sync your device.
Maximizing Battery Life
• Decrease the screen brightness and timeout (Adjusting the
Screen Brightness, page 8).
• Turn off wrist gestures (Appearance Settings, page 8).
• In your smartphone notification center settings, limit the
notifications that appear on your vívosmart 4 device
(Managing Notifications, page 3).
• Turn off smart notifications (Sound and Alert Settings,
page 8).
• Turn off Bluetooth wireless technology when you are not
using connected features (Bluetooth Settings, page 8).
• Turn off pulse oximeter sleep tracking (Activity Tracking
Settings, page 9).
• Stop broadcasting heart rate data to paired Garmin devices
(Broadcasting Heart Rate Data to Garmin Devices, page 6).
• Turn off wrist-based heart rate monitoring (Wrist Heart Rate
Monitor Settings, page 8).
NOTE: Wrist-based heart rate monitoring is used to calculate
vigorous intensity minutes, VO2 max., stress level, and
calories burned.
Restoring All Default Settings
You can restore all of the device settings back to the factory
default values.
1
Press to view the menu.
2
Select > > Reset.
3
Select an option:
• To reset all of the device settings to the factory default
values and save all user-entered information and activity
history, select Reset Default Settings.
• To reset all of the device settings to the factory default
values and delete all user-entered information and activity
history, select Delete Data and Reset Settings.
An informational message scrolls in the device.
4
Press .
5
Select .
Product Updates
On your computer, install Garmin Express (www.garmin.com
/express). On your smartphone, install the Garmin Connect app.
This provides easy access to these services for Garmin devices:
• Software updates
• Data uploads to Garmin Connect
• Product registration
Updating the Software Using the Garmin
Connect App
Before you can update your device software using the Garmin
Connect app, you must have a Garmin Connect account, and
you must pair the device with a compatible smartphone (Setting
Up the Device, page 1).
Troubleshooting 11
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