Garmin 305 Quick Setup Guide

Press 

 to start the timer. During your run, press the 

 

 to 

view all of the Timer pages. To clear the timer, press 

. Then press 

and hold 

 until the timer returns to zero. 

Press 

 to view the Main Menu. Using the 

Main Menu, you can set up simple or advanced 

workouts, view your history data, save locations 

in memory, and customize the Forerunner.

➋

Press and hold 

   to turn on the Forerunner. Follow the 

instructions on the screen.

➌

After you configure the Forerunner, the 

Locating Satellites page appears. To acquire 

satellite signals, go outdoors away from tall 

buildings and trees. Acquiring satellite signals 

may take 30–60 seconds.
Wait while the Forerunner searches for 

satellites. For best results, stand still in an 

open area until the Locating Satellites page 

disappears. When the Timer page appears, 

you can start your run or activity.

➊

Charge the Forerunner for three hours before using it. When the 

battery is fully charged, the battery life is approximately 10 hours. 

To avoid corrosion, be sure the Forerunner is completely dry before 

charging.

➊

 Snap the Forerunner into the charging cradle.

mini-USB port

cradle

➋

 Plug the small end of the AC adapter into the mini-USB port on 

the cradle. Plug the other end into a standard wall outlet.

➊

•  Press and hold to turn unit on/off. 

•  Press to turn backlight on/off.

➋

•  Press to view Timer or Main Menu.

•  Press to exit a menu or page.

•  Press and hold to change sports.

➌

•  Press to create a new lap.

•  Press and hold to reset the timer. 

➍

  Press to start/stop the timer.

➎

  Press to select options and to acknowledge messages.

➏

•  Press to highlight options.

•  Press to scroll through menus and data fields.

  If the unit stops responding to button presses, press 

mode and 

lap/reset at the same time to reset the unit. 

➌

➍

➎

➋

➏

➊

GPS antenna is 

located here.