I've had my Garmin FR205 for about 1.75 years and have recorded over 800 hours of activity, according to Garmin Training Center. I've taken it orienteering, running, biking, skiing, inline skating, and kayaking.
Overall, my watch still works fine, especially when compared to other devices I have used this much. Its biggest issue is that it occasionally crashes after charging and then appears to be off while it is actually frozen and draining the battery. A soft-reset (pressing Mode and Lap at the same time) makes it possible to turn it back on. To ensure that the battery isn't dead when I need to use the watch, I often turn the watch on and then back off once I disconnect it from my computer.
To maintain my watch, I have promptly cleaned it after using it. This probably prevents the contacts from getting corroded. I have also installed the latest firmware.
See the following URL for a list of key combinations for soft-resetting, hard-resetting, etc.:
http://forums.motionbased.com/smf/index.php?topic=...
If your watch seems to be broken or you are having problems with it, I would suggest trying the following:
- Soft-resetting it (this is like restarting a computer)
- Hard-resetting it (this clears all user data and settings)
- Cleaning the metal contacts on the back
- Charging it
- Upgrading or reloading the firmware (which is available from Garmin's website)