Battery Life Information; Troubleshooting; Product Updates; Setting Up Garmin Express - Garmin FORERUNNER 255 Series Owner's Manual

Battery Life Information

The actual battery life depends on the features enabled on your watch, such as activity tracking, wrist-based
heart rate, phone notifications, GPS, and connected sensors.
Mode
Activity mode with GPS Only mode and wrist-
based heart rate
Activity mode with All Systems mode and wrist-
based heart rate
Activity mode with All Systems mode, wrist-based
heart rate, and music playback
Activity mode with All + Multi-Band mode and
wrist-based heart rate
Smartwatch mode with activity tracking, phone
notifications, and wrist-based heart rate

Product Updates

Your device automatically checks for updates when connected to Bluetooth or Wi‑Fi. You can manually check
for updates from the system settings
(www.garmin.com/express). On your phone, install the Garmin Connect app.
This provides easy access to these services for Garmin devices:
• Software updates
• Data uploads to Garmin Connect
• Product registration

Setting Up Garmin Express

1 Connect the device to your computer using a USB cable.
2 Go to www.garmin.com/express.
3 Follow the on-screen instructions.

Getting More Information

• Go to support.garmin.com
• Go to buy.garmin.com, or contact your Garmin dealer for information about optional accessories and
replacement parts.
• Go to www.garmin.com/ataccuracy.
This is not a medical device. The pulse oximeter feature is not available in all countries.

Activity Tracking

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

My daily step count does not appear

The daily step count is reset every night at midnight.
If dashes appear instead of your step count, allow the device to acquire satellite signals and set the time
automatically.
92
Forerunner 255S series
Battery Life
Up to 26 hr.
Up to 20 hr.
Up to 5.5 hr.
Up to 13 hr.
Up to 12 days

Troubleshooting

(System Settings, page
for additional manuals, articles, and software updates.
Forerunner 255 series
Battery Life
Up to 30 hr.
Up to 25 hr.
Up to 6.5 hr.
Up to 16 hr.
Up to 14 days
87). On your computer, install Garmin Express
Troubleshooting