Withings Activite Pop Activity Tracker Watch HWA01GRAY measure your activity day and night with Activite Pop, a trendy analog display activity tracker. Reach your health goals and improve your sleep cycles using the activity level assessment and sleep tracker. This watch is also water resistant and compatible with select iOS™ and Android™ devices. Water-resistant up to 164' allows you to wear the watch while swimming or working out in the elements. Wake up feeling refreshed the silent alarm gently vibrates at a preset time to wake you up without disturbing others. Get motivated by being more aware of your daily activities accurately tracks steps, elevation, distance, running, swimming, and calories burned.