SD Card 64gb [approx. 4hrs record time]
Make sure you check out your cameras website to check compatibility of the SD card with your action camera.
Now let's talk about how much time you can record with the 64GB SD card. It depends on your camera settings. YOLOtek recommends 1080p/60fps. Good resolution and you can do a little slow motion in editing and give you about 4 hours record time.