SJCAM SJ7 Star Description: SJ7 Star is the first native 4K camera of SJCAM. With the Ambarella A12S chipset and Sony IMX117 sensor,it supports many different video resolutions at different frames per second. Record up to 4K@30fps to capture the best times of your life. SJCAM SJ7 Star has a lightweight yet sturdy aluminum alloy housing. The matte finish, with machined edges, gives the Star an elegant appearance.