The Sony SmartBand 2, available in white and black, is a sleek band with a wide range of tools at its disposal. It tracks heart rate, allowing wearers to understand how their daily activities, and moods, affect their health. The water-resistant device also monitors steps, distance and sleep quality, with a battery life of up to 5 days. When synced to an Android smart device, or the Sony Lifelog app, it displays a wide range of data and statistics so that users can track their long-term progress. The band comes in white, black, pink and indigo.