Normally £150 ish. on Amazon for £92.99 (certain colours and sizes)
Water resistant fitness trackert, wrist-based heart rate, all-in-one fitness tracker with colour high resolution touch screen. Provides personalised guidance and feedback based on your heart rate and activity. Track your steps and distance through an accelerometer, calories burned and even your sleep quality. Use the Polar Flow app and web service for instant data sync and analysis. Smart phone notifications.