background image

3

Set the time, and select   to accept.

Device Information

Forerunner Specifications

Battery type

Rechargeable, built-in lithium-ion battery

Battery life (small size) Up to 8 wk. for low power mode and activity 

tracking
Up to 8 hr. for active mode

Battery life (large size) Up to 10 wk. for low power mode and activity 

tracking
Up to 10 hr. for active mode

Operating temperature 
range

From -15º to 60ºC (from 5º to 140ºF)

Charging temperature 
range

From 0º to 45ºC (from 32º to 113ºF)

Radio frequency/
protocol

2.4 GHz ANT+ wireless communications 
protocol
Bluetooth Smart wireless technology

Water rating

5 ATM*

*The device withstands pressure equivalent to a depth of 50 m. 

For more information, go to 

www.garmin.com/waterrating

.

Heart Rate Monitor Specifications

Battery type

User-replaceable CR2032, 3 volts

Battery life

Approximately 3 years (1 hour per day)

Operating temperature 
range

From -10° to 50°C (from 14° to 122°F)

Radio frequency/
protocol

2.4 GHz ANT+ wireless communications 
protocol

Water rating

1 ATM*

NOTE: 

This product does not transmit heart 

rate data while swimming.

*The device withstands pressure equivalent to a depth of 10 m. 

For more information, go to 

www.garmin.com/waterrating

.

User Replaceable Batteries

 WARNING

Do not use a sharp object to remove batteries.
Keep the battery away from children.
Never put batteries in mouth. If swallowed, contact your 

physician or local poison control center.
Replaceable coin cell batteries may contain perchlorate 

material. Special handling may apply. See 

www.dtsc.ca.gov

/hazardouswaste/perchlorate

.

 CAUTION

Contact your local waste disposal department to properly 

recycle the batteries.

Replacing the Heart Rate Monitor Battery

1

Locate the circular battery cover on the back of the heart rate 

monitor.

2

Use a coin to twist the cover counter-clockwise until it is 

loose enough to remove (the arrow points to 

OPEN

).

3

Remove the cover and the battery.

4

Wait 30 seconds.

5

Insert the new battery with the positive side facing up.

NOTE: 

Do not damage or lose the O-ring gasket.

6

Use a coin to twist the cover clockwise back into place (the 

arrow points to 

CLOSE

).

After you replace the heart rate monitor battery, you may need 

to pair the heart rate monitor with the device again.

Troubleshooting

Getting More Information

• Go to 

www.garmin.com/intosports

.

• Go to 

www.garmin.com/learningcenter

.

• Go to 

http://buy.garmin.com

, or contact your Garmin dealer 

for information about optional accessories and replacement 

parts.

Updating the Software

Before you can update your device software, you must have a 

Garmin Connect account, and you must download the Garmin 

Express application.

1

Connect the device to your computer using the USB cable.
When new software is available, the Garmin Express 

application sends it to your device.

2

Follow the on-screen instructions.

3

Do not disconnect your device from the computer while the 

Garmin Express application downloads the software.

TIP: 

If you are having trouble updating the software with the 

Garmin Express application, you may need to upload your 

activity history to the Garmin Connect application and delete 

your activity history from the device. This should provide 

sufficient memory space for the update.

Improving GPS Satellite Reception

• Frequently sync the device to your Garmin Connect account:

◦ Connect your device to a computer using the USB cable 

and the Garmin Express application.

◦ Sync your device to the Garmin Connect Mobile app using 

your Bluetooth enabled smartphone.

While connected to your Garmin Connect account, the device 

downloads several days of satellite data, allowing it to quickly 

locate satellite signals.

• Take your device outside to an open area away from tall 

buildings and trees.

• Remain stationary for a few minutes.

Maximizing Battery Life

• Turn off smart notifications (

Turning Off Notifications

page 2

).

• Turn off the Bluetooth wireless feature (

Turning Off Bluetooth 

Technology

, page 2

).

• Turn off activity tracking (

Activity Tracking

, page 3

).

Resetting the Device

If the device stops responding, you may need to reset it.

NOTE: 

Resetting the device may erase your data or settings.

1

Hold   for 15 seconds.
The device turns off.

2

Hold   for one second to turn on the device.

Clearing User Data

You can restore all of the device settings to the factory default 

values.

NOTE: 

This deletes all user-entered information and history.

1

Hold  .

6

Device Information

Summary of Contents for Forerunner 25

Page 1: ...Forerunner 25 Owner s Manual July 2015 Printed in Taiwan 190 01902 00_0A...

Page 2: ...bsidiaries registered in the USA and other countries Garmin Connect Garmin Express and Virtual Pacer are trademarks of Garmin Ltd or its subsidiaries These trademarks may not be used without the expre...

Page 3: ...About Heart Rate Zones 4 Fitness Goals 4 Foot Pod 4 Going for a Run Using a Foot Pod 4 Foot Pod Calibration 4 History 5 Viewing History 5 Deleting a Run from History 5 Personal Records 5 Deleting Pers...

Page 4: ......

Page 5: ...nect You can connect with your friends on Garmin Connect Garmin Connect gives you the tools to track analyze share and encourage each other Record the events of your active lifestyle including runs wa...

Page 6: ...ual Pacer to help improve your performance Running With Virtual Pacer page 2 Select Time and enter an amount of time to train toward a specific time goal Select Distance and enter a distance to train...

Page 7: ...l distance traveled calories burned for each recorded day and sleep statistics Your calories burned includes your base metabolism plus activity calories Activity tracking can be enabled during the ini...

Page 8: ...e zones to measure and increase their cardiovascular strength and improve their level of fitness A heart rate zone is a set range of heartbeats per minute The five commonly accepted heart rate zones a...

Page 9: ...oid data loss If your device is connected to your Windows computer as a portable device it is not necessary to safely disconnect 1 Complete an action For Windows computers select the Safely Remove Har...

Page 10: ...the arrow points to CLOSE After you replace the heart rate monitor battery you may need to pair the heart rate monitor with the device again Troubleshooting Getting More Information Go to www garmin c...

Page 11: ...rtable pace slightly deeper breathing conversation possible Basic cardiovascular training good recovery pace 3 70 80 Moderate pace more difficult to hold conversation Improved aerobic capacity optimal...

Page 12: ...viewing 5 I icons 1 indoor training 2 intervals 2 K keys 1 7 L language 5 laps 1 3 N notifications 2 5 P pace 2 3 pairing ANT sensors 4 smartphone 2 personal records 5 deleting 5 R replacing the batte...

Page 13: ......

Page 14: ...5 69 33 99 39 02 36 699699 52 001 855 792 7671 0800 0233937 47 815 69 555 00800 4412 454 44 2380 662 915 35 1214 447 460 386 4 27 92 500 0861 GARMIN 427 646 27 0 11 251 9999 34 93 275 44 97 46 7744 52...

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