Baby monitors are available in three primary forms: audio, video and movement. If your main concern is hearing when your baby wakes up, then an audio-only monitor will do the trick. These baby monitors tend to be smaller, and less expensive. With a video baby monitor, there are a wide variety of options available, including different screen sizes, cameras that tilt, pan and zoom, and night vision. This type of monitor tends to provide extra levels of security, allowing you to tell if your baby is lying down or standing up, to track sleep patterns, and to evaluate whether intervention is required, or whether your child seems likely to self-soothe and fall back asleep. Plus, if you get a video camera that connects to your Wi-Fi, you can use the camera as a nanny cam, and check the baby video even when you're away from home. Movement-based baby monitors are designed to track your baby's heart rate, movement, respiration, skin temperature and sleep quality.
If you sleep in the same room as your baby or live in a small enough space that you can always hear or see what your baby is up to, you probably don’t need a monitor. Otherwise, most parents enjoy the convenience a baby monitor provides—instead of needing to stay close to the nursery or constantly checking on your child, you’re free to rest, catch up on Netflix or get things done around the house during naptime. Monitors can also double as a nanny cam to keep an eye on your child and their caretaker.