Check your calories with the Aquarius AQ137 Fitness Tracker Choose from black or silver watches Made with plastic and silicone Track your calories, steps, miles, activity and more Connected GPS for real-time pace and distance 1.3" large colour screen to easily ready data Functions include: anti-lost, sedentary, alarm, messages, call reminder  As well as sleep duration and stages Please see Full Details for complete specifications  Save 32% on the Aquarius AQ137 Fitness Tracker for 29.99 pounds