A baby monitor's job is to transmit recognizable sound and, in the case of video models, images. The challenge is to find a monitor that works with minimal interference—static, buzzing, or irritating noise—from other nearby electronic products and transmitters, including older cordless phones that might use the same frequency bands as your monitor.
Portable Base Unit with Good Range: Babies go to bed earlier than parents, and they also nap during the day. Unless you want to spend your time sitting next to the baby monitor base unit watching the video stream, you're going to want a unit that has far range and good battery life. This will let you take the unit and, say, take out the trash or let the dog out, while still being able to see your baby. Better yet, many of our best-rated baby monitors are completely wireless and operate by running iPhone or Android apps on your smartphone to wirelessly view the digital color video stream wherever you are. In this way, you're no longer buying a camera and monitor, you're only buying the same cameras that modern security cameras use. This gives you a more universal baby monitor and makes portable wifi baby monitoring more convenient than ever, and we're definitely in support of this new trend. Want to keep an eye on your child while you're on date night? No problem, but only with one of these modern systems.
General Usability: This one is two-fold. First we wanted to make sure each monitor could perform under bright, dim, and no light; and pick up even the faintest sounds. Then we looked at how easy it was to use the monitor. Could we adjust the screen brightness, or were we going to be half-blinded when we picked it up at 1AM? Was the monitor voice-activated, or does it pick up white noise in the background? How sensitive were the alarms, and did they sound like a baby-waking screech or a soft ping?
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.