Microphone sensitivity: There’s a difference between hearing your baby cry, and hearing every little noise. All baby monitors have the option to turn down the volume, but some offer thresholds for parents who are more comfortable with only hearing the biggest upsets, and prefer not to hear the self-comforting noises their baby makes as they fall asleep.
The camera angle is 135-degrees (5 nominal degrees wider than the competition), which makes it wide enough to view the length of a play yard from just 2 feet away and see your whole child. (From the same vantage point, other cameras would crop our crib.) And as they grow, you can reposition the camera to easily film a whole room, so you can watch them, not just toss and turn, but run around and cause havoc.
The Nest boasts some impressive hardware specs, such as true 1080p/30fps video and a 3-megapixel camera sensor. Setting up the Nest Cam specifically to look in on a 2-year-old at night, we found the video quality on Nest's camera to be sharper and more detailed than on any baby video monitor we tested. The Nest Cam includes push-to-talk features as well as alerts triggered by motion or sounds. And when your child is past the age when you need a nighttime monitor, you can repurpose the Nest Cam to check in on other parts of your home.
Interchangeable Camera Lenses: Some of the newest baby monitors have interchangeable lenses to best suit your baby's room. If you have the camera positioned close to the baby, like on the edge of the crib or on a nearby dresser, you might prefer the wide angle camera. If you have the camera positioned relatively far from the baby, like on a bookshelf on the other side of the room, you might prefer the regular narrow angle camera. Flexibility is nice, particularly if you end up rearranging the room or have to move things out of the reach of a growing menace.
We swapped in and out more than a dozen different video cameras in front of a Graco Pack ‘N Play, and we monitored a 3-month-old baby for weeks, filming through the mesh, spying during daytime naps, and watching in the pitch black of night. When applicable, we’d take the base units out of the test apartment, down flights of stairs, to check their range.
Baby video monitors with all the latest bells and whistles cost around $200, sometimes more depending on the feature set. However, you can find solid baby monitors for $100 to $150 less than that, though you'll sacrifice on video resolution and some features. Cloud storage can add to the cost of a baby monitor in the form of an ongoing subscription, though that feature is usually optional.
The features we focused on were those we thought either increased the performance of the monitor or made it more user-friendly for parents and increased the odds of getting good quality sleep. We looked for monitors that have sound activation that keeps the parent unit quiet when the baby isn't crying, so parents can potentially fall asleep faster because they don't have to listen to white noise. Some of the monitors were so loud, even at low volumes, that the white noise might keep light sleeping parents awake; this defeats the purpose of having a video product to begin with. We also liked the models with screens that automatically "wake" and/or go to sleep.