Is the Forerunner 305 waterproof?

One question we get asked a lot is "can I wear my Forerunner while swimming?" It's of obvious concern to triathletes.

The Forerunner 305, like most Garmin GPS receivers, carries a waterproof rating called "IPX7". Garmin say "An IPX7 designation means the GPS case can withstand accidental immersion in one meter of water for up to 30 minutes." In practice this means that an IPX7 GPS is likely going to be just fine if it's used in the rain, or if you dunk it briefly during a cross-country run or mountain bike ride. But neither we nor Garmin recommend swimming with your Forerunner.

In a triathlon it makes sense then to have the Forerunner already mounted on your bike (theft concerns permitting) ready to go after your swim. At the end of the ride you can use the quick-release feature to instantly transfer it to your wrist for the run.

Relates to:

• Garmin Forerunner 305 Multi-Sport

Articles Archive

• Your Edge 705 is HOW MUCH?
• GPS verses Cyclometer-Pros and Cons
• Team Garmin GPS Data Online
• Team Garmin to use Edge 705 GPS in Tour De France
• What makes the Forerunner 305 'Multisport'?
• Take your Garmin Edge 705 hiking, skiing, etc
• Who's using Garmin fitness GPSes? Jake's Journal and Onto Fitness Blogs
• Can my Garmin Edge GPS guide me on a loop ride?
• Wired Reviews Garmin Edge 705
• GPS "breadcrumb" Tracks
• Do I need the Speed/Cadence sensor?