Sound activation is a feature we think parents should consider. This feature creates a quiet monitor unless the baby is actively making noise and translates to parents potentially getting more sleep because they aren't kept awake by ambient noises. Having sound activation means you only hear what you want to. This feature can be found in dedicated and Wi-Fi monitors.
It really depends on what you feel most comfortable with. There are audio monitors that allow you to listen to any noise coming from the nursery, vital monitors that track sleep and breathing and video monitors that add sight to sound. Babylist parents overwhelmingly choose video monitors. The security of seeing what your child is up to—like if they’ve gotten tangled in their swaddle, pulled their diaper off or climbed out of the crib—can be worth the extra cost of a video monitor.