Summary: I am new to the world of triathlons and this watch is working out great. The heart rate monitor is very accurate. I tested it manually and using the HR monitor on a treadmill and stationary bike and it agreed with all. The watch works well and it mostly intuitive. It's not as easy as an iPad, but it wasn't too difficult to figure out how to change the fields being displayed. A lot of people seem to have trouble finding the time: there is a field that says Time of Day.
Summary: I have been using the 910 for about 8 months now. I've done a 1/2 iron man, several smaller tris and 2 marathons with it. I have also used it in the pool during training and competition. I have been very happy the performance so far. I have not given it a 5 star rating however for a few reasons: the gps pace on the run setting tends to jump around a bit. This is no worse or better than the 2 previous watches I've used but it can be irritating.
Does just about everything one would want, but defective barometer was a hassle.
23 January 2014
Summary: The only drawback was that the first unit had to be sent back due to a defective barometer. That also meant I had to reprogram and resync the entire thing by hand. This includes the slow entering of bike names, etc. It would be great if this could be done on a computer and then the settings transferred. Also, one would expect that the factory could automatically reset the settings, or at least, do so manually since the whole affair was their fault.
Summary: Never been a fan of Garmin sport watches, but this one is an excellent product. It is very well designed, it wears extremely comfortable and the GPS signal is always strong. The display is large enough to easily show a set of 4 different informations (e.g. pace, distance, time, altitude etc.) and it works for running, cycling and swimming. The materials used seem durable and sturdy, unlike any other Garmin sport watch I've seen or used.
Summary: I really like this unit. The only thing that is keeping me from giving a 5star rating is because I can't view activities by week without jumping on a computer vs. the 305 where you can do that right on the unit. Other than that...it's great!
Summary: This is my 3rd Garmin GPS watch, the first was a 405 with touch bezel. Unfortunately that model did not work well, the touch bezel was a bad idea. The second is a 110, simple and only really for running, but it works well for that purpose. This 910 is used to track my son's workouts since I can not always be there to see how he is doing. He is a talented triathlete so I needed something that could be used in the water.