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Question: What is the difference in base model, triatlhlon bundle? Does base model not come with a heart rate monitor? I don't see any price difference in the two models. I am a triathlete.
Document: Maybe I'm missing something - somebody please tell me.Also, the heart-rate monitor would sometimes jump around unexpectedly, something which never happened to my 305.This gets one star because of the price and the fact the altimeter does not even come closing to working as it should.I returned the watch. I would have purchased the 310XT but was so mad at Garmin for the 910XT that I just decided to go with the old school Timex Road Trainer for now.
There have been a number of detailed reviews already. I will write mainly the items which I find notable.I have the Triathlon bundle, which seems overpriced. If you buy the watch itself, and then add the extender strap, cadence accessory, quick release kit &cycling; parts separately, it may come out cheaper than buying the bundle. The 310XT is available at a much lower price as of writing, although it is several years older technology.
I've previously had two 405s and they each lasted about two years. I've had this one for a year and it is doing fine so far. Only issue is that the start button broke in half. It still works fine, but I'm afraid to take it in the water too often, I've raced with it a few times in the water and its still ok. Speaking of water, I washed my heart rate monitor and is still works!
Ive used it on two triathlons so far and have trained with it regularly. Love it so far. Its great on my pool swims...keeps track of my distance and stroke efficiency. I had a bit of trouble getting it set up in the beginning; but thats my fault because im hardheaded and didnt read the instructions. heart rate monitor works well and comes in handy. pace keeper is MUCH better than my previous watch and it picks up the signal much faster.
I am beyond disappointed and fed up with this product. I've had the 910XT for 2 months now and have had nothing but problems with it. For the 1st two weeks, it would not upload data at all. With a software update this finally started working, but then the heart rate monitor stopped functioning. For example, it would show a heart rate of 54-84 bpm after completing 20 min of sprint intervals.The swim function is absolutely worthless. The distances it measures are not even close.
Have had this heart rate monitor  for over two years and works as well as it did on day one.
This is a fantastic gadget!! I use it all the time - when I'm walking the dog, running on the treadmill, running outside, and biking. It's super easy to use and you can customize the screens to see exactly what you want. It's really helped me with my training to be able to monitor my heart rate, my pace, and my cadence on the bike.
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.
I assume the color screen would eat battery life to fast for the watch but I assume they will come out with one sooner or later.The GPS connects faster then my old edge! The screen isn't high resolution but it works great and is very visible at night or in bright sunlight. I have a Garmin HR monitor but I got the model with the premium HR sensor as it can be worn in the water (thought it does not record your HR while in the water).
Very good, enough lasting battery good. Good site for saving your results and to monitor these results.Everything was ok until one or two months ago. They changed the site and it doesn't support 610, 910 and others new Garmin models. It is inexplicable. Garmin ask you for wait. Sportsmen can't wait to check their results.I'd like to give 5 stars to the device.
Answer: The base does not come with HRM.  The Triathlon bundle adds Heart Rate; Mounting stuff for two bikes; CAD sensor for one bike; and funky wrist strap thing so you can move it from wrist to bike and back.