Polar Loop 2 Brand New Includes Two Year Warranty Product # 90054934 Sorbet Pink Product # 90054940 Powder White Product # 90054916 Black The Polar Loop 2 Activity Tracker is a band which helps to get 24/7 activity tracking, fitness coaching, and smart notifications. The loop 2 is a wrist-worn band that works with the Polar flow iOS/Android app and Polar flow web service to deliver features like tracking your daily activity and providing feedback,measuring the intensity of your activities, and offering post workout analysis to help reach your goals. Through the app the loop 2 is able to alert you when you've been inactive for too long. Used together the band works with the app and web service to help you stay active throughout the day and get feedback. The loop 2 displays daily activity, calories burned, steps taken and the time of day. The loop 2 activity tracker is also equipped to receive smart notifications such as you get incoming calls, messages and calendar notifications on your wrist for iOS devices only. It is designed to be water-resistant, it can be worn while swimming or in the shower. It has a built-in rechargeable li-polymer battery that lasts forup to eight days on a full charge and can be charged via USB using the included cable. Loop 2 Activity Tracker Features Technical Rechargeable 38 mAh Li-Pol Battery Battery Duration Up To 8 Days with 24/7 Activity Tracking 1h/Day Training Connectivity Easy Wireless Sync Via Polar Flow App with Bluetooth Smart Custom USB Connector For Charging data Sync with PC or Mac Via Polar FlowSync Measurements Weight 38 g Thickness 10.8 mm Width 20 mm Size 145 240 mm