Segment first 16.66 cm (6.56 inch) HD+ LCD Dot-in Display,Dynamic Port to track all notifications,90 Hz refresh rate for smooth scrolling experience,Segment-first Dual Stereo Speakers equipped with DTS technology,Experience up to an impressive 400 percent increase in volume, delivering a fully immersive sound,Massive 4 GB of RAM & 64 GB of ROM,Includes a dedicated SD card slot for up to 1TB expan