There are two basic types: audio and video/audio. Some are analog, others are digital. All monitors operate within a selected radio frequency band to send sound from a baby's room to a receiver in another room. Each monitor consists of a transmitter (the child/nursery unit) and one or more receivers. Prices range from about $25 to $150 for audio monitors and about $80 to $300 for audio/video monitors.
While digital monitors minimize the possibility of unwittingly broadcasting images and sounds to other devices, any wireless device (analog or digital) can interfere with other wireless devices, such as your baby monitor, cordless phone, wireless speakers, or home wireless router. To solve the problem, first, try changing the channel on your baby monitor or on your router. If you still have interference and you can't return the monitor, try keeping other devices as far away from your baby monitor as possible.
The Nanit Smart Baby Monitor is for the tech- and data-obsessed parent who wants to know and track everything about his baby. Winner of the Bump’s 2018 Best of Baby Awards, the Nanit is an over-the-crib Wi-Fi camera that not only offers standard video monitoring capabilities, but also provides sleep insight reports and sleep scores via the app. The bird’s-eye-view camera provides real-time HD-quality video and uses “computer vision” to track whether your child is awake, sleeping, or fussing. Then, Nanit synthesizes this data to generate nightly sleep reports and sleep scores, even providing tips on how to help your baby sleep better. Says Kay, “The Nanit is a two-in-one in that you’ve got this monitoring app, but you’re also getting helpful training and guidance when it comes to sleep, which is different from a lot of the competitors.” Priced at $279, it’s definitely on the high-end of baby monitors, but if that extra functionality is important to you, it may be worth it. For other parents, however, the Nanit may be more than you need.
We took these criteria into consideration, factored in user feedback and reviews from across the Web, and eventually narrowed the list to eight cameras for testing. We used each camera for several months, taking notes on the interface and any difficulties we ran into. We connected each model to multiple routers, and used each from various distances and through walls to test range. We also ran each monitor from a full charge down to zero to check battery life. Finally, we evaluated each monitor's night vision in dark environments. Read more about our tests in our full guide to baby monitors.
This monitor offers lots of convenient features. Don’t have the best view of your baby? Use the monitor to remotely pan, tilt or zoom the camera without having to go back into the nursery. Fussy baby? Press a button to play lullabies. Need the camera to move from your bedroom to the nursery? No problem: this freestanding monitor can be set on top of a dresser or grip onto shelves and brackets. You can also unplug it and use it in another room for up to three hours on a single charge. And there’s a room temperature display. But the most impressive feature is its 1,000-foot range—the highest of all cameras on this list. That means you can hear your little one’s every chirp even if you’re hanging out in your backyard.