This smart wristband tracks your fitness activity: number of steps, distance travelled, floors climbed and calories burned. It synchronises itself with your mobile phone via Bluetooth to enable you to visualise your progress on your smartphone with a free app. Track the duration and quality of your sleep and use the alarm function to wake up gently. You can program various types of real-time coaching. Compatible with IOS7.0 and above, as well as Android 4.3 and above. Soft silicone wristband. Size: 240 x 20 x 10 mm; Weight: 25 g.