Whether you're a total fitness junkie or you're more of a casual gym-goer, a good smartphone armband is a convenient piece of gear to have for one that won't take up much space in your gym bag. Maybe you enjoy listening to music for extra motivation, or you simply want to be able to carry your phone on you for safety while out running, an armband will keep your hands free and your phone close. It is almost compatible with every smartphone and the phone does not slip away while doing any physical workout.