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These are some common tools used to work on this device. You might not need every tool for every procedure.

Identification and Background

The Garmin Forerunner 405 GPS watch was one of the best quality watches of 2008. The Garmin is known for its modern black and silver coloring with only two buttons. This watch is perfect for athletes who want to improve their times and train efficiently. Consumer ease of use is excellent with the new touch bezel and easy navigation throughout the screens. The new Ant+, which is similar to Bluetooth allows users to upload workouts wirelessly.


Track down problems encountered with your Forerunner 405 on our Forerunner 405 Troubleshooting page.

Technical Specs

Physical dimensions

  • 1.88" x 2.78" x 0.646" (4.8 x 7.1 x 1.6 cm)

Display size

  • WxH 1.06" (2.7 cm) diameter

Display resolution

  • WxH 124 x 95 pixels


  • No


  • 2.11 oz (60 g)


  • rechargeable lithium-ion

Battery life

  • 2 weeks in power save mode; 8 hours in training mode

Water rating

  • IPX7


  • Yes

High-sensitivity receive

  • Yes

Additional Info

Garmin Support Page

Garmin Owners Manual

Garmin FAQs

Garmin Data Page

Garmin Forerunner 405 on Amazon

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