Beyond security, Wi-Fi monitors have other disadvantages. In our tests, connectivity was more of an issue with Wi-Fi monitors than it was with RF monitors. We tested our Wi-Fi monitors on two separate routers and consistently had problems—we’d often lose the connection some time in the night and not even realize that the monitor had disconnected until morning. This happened with all three Wi-Fi models we tested. We never really felt confident relying on any of the connected monitors overnight, despite the fact that the modem and router were literally on the other side of a wall from the monitor. Other owners (like this one) have had the same issues.
But, for many parents, a baby monitor is a part of daily life. A baby monitor gives you a camera and/or microphone near the crib, and a separate rechargeable parent unit (aka, a monitor) that connects wirelessly and can travel with you throughout the house, either working while plugged in or running off its battery. It's nice to see your children in bed, dreaming happily, sleeping in adorable new positions, cuddling with animals, and generally doing okay.