Summary: I did not especially want to buy this watch (I had to buy one for a coaching program to work). I was worried it was going to be far too big, too bulky, too annoying, etc. These fears were mostly not founded. I would recommend it to any triathlete. I am a woman with very small wrists and hands.
Summary: the 910XT watch is excellent and does the job. Together with the Garmin connect you can easily track performance and progression the hart monitor is worthless and stooped working after less than a year. I try replacing the battery but it doesn't work.
Still loving it after 18 months, although some of the gloss has come off.
P. Dixon, Amazon
5 September 2014
Summary: I've been using the 910 for about a year and a half and here's my thoughts, some of which are responses to some of the reviews I've read here. Functionality. The 910 has PAGES of statistics it can track and measure and display for you.
Summary: Second one, first had the "quick mount". The mount was fine, but it allowed me to take the thing off my bike, set it down on the car bumber and forget it and drive off. Seems to take a while to aquire sat signal. Can't tell breast from back stroke (gets free style well).
Works very well, looks ok, overall pretty much met expectations!
21 April 2014
Summary: Ive been using for more than a month now for swimming and more ocasionaly running. It works. Simple as that. Also it gathers more data than an average athelete would care to use. If you are more advanced than its all there.
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.
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.
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.