Garmin Forerunner 920XT

Amazon ReviewsScores 4.5 out of 5 from over 149 Amazon Reviewers (view on Amazon).
The Garmin Forerunner 920XT is the successor to the older 910XT, and a step up from the 310XT. It packs a fleet of high-end training features into a sleek watch that is wet suit-friendly. It boasts a high-resolution colour display; flexible, hinged bands and a watch mode, so you can wear it all day. The activity tracking feature measures your steps, sleep and calories burned all day, giving you a more complete picture of your daily activity.