Lay the ribs on the top rack of the grill (away from the coals, if you're using briquettes). Reduce gas heat to low, close lid, and leave undisturbed for 1 hour. Do not lift the lid at all. Brush ribs with barbecue sauce, and grill an additional 5 minutes.
You can store about 27 hours and 30 minutes of video on a 64gb memory card.
Of the 16GB of total storage, 10.74GB is available out of the box. That's a good amount of storage for an entry-level device, and you can expand storage by 32GB with a microSD card. In a battery test where we streamed a YouTube video over LTE with screen brightness set to max, the Zmax lasted for 6 hours, 32 minutes.