The HERO4 Silver Edition[47] is basically a HERO3 Black Edition with the addition of a micro speaker, built-in touch screen display, Protune for photo and highlight tag the first GoPro with this, a lower clocked Cortex-A9 and missing the Black Editions integrated analog-to-digital converter which supports a wider variety of professional low-sensitivity external mics.[48] The video modes supported by the HERO4 Silver Edition are similar to those of the HERO3+ Black, due to the higher processing speed and thermal requirements of 4K video (3840×2160), but it supports Wi-Fi, Bluetooth and contains the same.--Wikipedia.com