Try to keep social content videos under 30 seconds. Pay attention to aspects unique to social media, like muted autoplay and video looping; you can actually use these tools to your advantage by playing with silent audio and creating seemingly endless loops. Also take advantage of highlighting positive customer feedback in your social videos — this increases your credibility and spreads positive word of mouth.
Professional cameras, like DSLRs, give you fine control over the manual settings of shooting video and allow you to achieve the shallow depth of field (background out of focus) that people rave about. While they're primarily used for photography, DSLRs are incredibly small, work great in low light situations, and pair with a wide range of lenses — making them perfect for video. However, DSLRs do require some training (and additional purchases) of lenses.