I have had every generation Garmin and used my 305 for 5 years until I lost it a few weeks ago. My back up is my Garmin 310 XT that i use now.
However, a few months ago I bought the Suunto Ambit, after Chris, my training partner got one. I rarely use it for paddling. However,the battery life on it is the best i have ever seen. I can go for a 1-3 weeks without charging it. I use it as my every day watch and i tend to use it when away on business trips since it can do every thing and I only need to bring one watch for everything. Display is great(huge) for the aging eye! GPS uplink is the best I have ever seen. I can be running on my treadmill in my basement and still get a reliable GPS signal for the entire run. That is impressive. Others fade in and out or I get no reception in my concrete basement. You can only change the display screens via the computer which is an advantage on the Garmins that u can change on the watch itself.
Yesterday I got the latest new Timex 2.0 GPS/HR. I have found over the years that the Timex is the most intuitive to use. The display on the 2.0 is great and rivals that of the Ambit. I used it for the first time today while running. Like Saslex wrote, go to DC rainmaker and see his comprehesive review on this watch as well. I mention it because is less expensive than certainly the Ambit and the Garmin 310XT. Timex customer service is very good and you can talk to a live person. In today's world that is rare. The GPS signal was very quick to upload which was a problem with previous generations. It is also very light on the wrist unlike the Garmins. You barely know you are wearing it.
Wesley Echols
SurfskiRacing.com
#1 in Surfski Reviews.