The document compares the features of Android 5.0 Lollipop and Apple's iOS 8 to determine which mobile operating system is more useful given users' varying needs. It discusses aspects like design, notifications, battery life, security, health/fitness tracking, customization and gaming capabilities. While both systems offer similar functionality, it finds that Android 5.0 introduces more new features through its "Material Design" approach and improved battery life. However, iOS 8 remains a leader in security and supports a wide selection of high-quality apps. In the end, it remains unclear which will be more successful at capturing user attention.