What should I look for in a baby swing for a newborn?

Reviewers emphasize a deep recline and good head support for the youngest infants. Several r/BabyBumps and r/beyondthebump commenters note that some swings sit babies too upright, causing small newborns to slump to the side, so a flatter recline and snug 5-point harness are the features most often praised for the 0-3 month stage.