I have put together a short list of items that I find useful in training and can help you become a better triathlete.
In addition to being able to track pace and distance some of the watches on the market today let you set custom workouts. This allows you to program in interval sets while running outside with real time feedback and alerts.
The obvious choice here is to get a quality bike one that fits you and from a dealer that is going to make sure you are on the correct size and setup properly for your body style.
So why is a power meter better than mph or heart rate? MPH just has to many variables, wind, uphill, downhill, drafting and so forth. Heart rate is a decent indication of effort but it usually lags behind in cycling, we find heart rate useful when power is not available but you can't dial in the bike workouts with hear rate as much as you can when riding by power. Heart rate is also a more easily to increase dependent on temperature so if you are riding inside in a hot room you will most likely notice that your heart rate is slightly more elevated.
When it comes to tools for swimming this is by far the cheaper of the sports but seems to have the widest variety. I mean how many gadgets are out there to help swimmers. I think the tried and true ones are still the best ones.
Swim Paddles and Pull Buoy - As triathletes we put a lot of abuse on our legs running and riding therefore the use of a pull buoy in our swim workouts is key. We like to add in quite a bit of pull to the workouts as one when done with a pull buoy it allows your legs to rest and two is forces you to work on your pull which is critical in building swim fitness.
Fins - A personal favorite, for those of us that took up swimming later in life and need a little help in our kick sets the proper fittings fins are key. The big catch with fins is to make sure you get a set that fits your feet and will not rub
Lastly the one tool that is not nearly as popular but one I personally like is a tempo trainer. This is a small device that you clip to your goggles by your ear and can set it to beep on specific interval. For example if you want to set it to control your stroke count you can set it to beep every time your hand is suppose to be entering the water. The other option is to set it for when you are suppose to be hitting the all, so if you want to do a 500 yard set on the 1:30 you would set the tempo trainer to beep every 22.5 seconds when using a 25 yard pool and every time it beeps you should be pushing of the wall. It is a good way to practice pacing in the pool.
If you have any questions about any of the items that we find helpful please let us know and we would be more than happy to answer your questions.