Facebook is preparing to launch its very own competitor to TikTok, Instagram Reels. Using the popular photo sharing platform as a testing field, Instagram Reels will have several, nearly identical, features that mirror TikTok's; the Chinese based newcomer. It comes as no surprise that Facebook would attempt to replicate TikTok's features and use Instagram for its initial rollout. So here are 13 things you need to know as the global rollout takes shape.