Forerunner 920XT
This is a comprehensive watch for all serious competitors. Measures your VO2, speed, distance, elevation and more. Smart alerts so you will never miss a email or text message while you’re training. It’s easy to see display along with comfortable band make it easy to wear all day. Combining the 920 with your smart phone you can use Garmin Connect to send your data off to where not only you but your friends can analyze it as part of the Garmin Community.