The BabySense (and other mattress sensors) require a hard surface under the mattress to work, and they don't work with all mattress types so you'll need to research your mattress to ensure it is compatible. This option is also not good for travel because of these special considerations. This product doesn't have a parent unit which means the alarm happens in the nursery with your little one and could be traumatic to sleeping little ones. If you want a movement device that works well and has a longer life than the wearable options, then the BabySense 7 is a great way to get the job done with minimal fuss.
Range: Range is the main drawback of an RF model, as audio monitors can roam farther out, and a Wi-Fi connection can theoretically be checked anywhere. We wanted an adequate range in a typical home—to be able to maintain a signal up or down a flight of stairs, across the house, and out on a patio or driveway, but we didn’t expect much beyond that. We zeroed in on monitors rated to about 700 feet of range1 or greater.
Gone are the days of silently peeking into the nursery to check on your napping baby and then, whoops, accidentally waking them up (“No, no, please no!”). A baby monitor uses a camera to watch over the crib, while you carry a handheld device that lets you know what’s going on with your child at any given moment, no matter where you are in your home. There are also other monitors that track sleep or breathing either with a clip or sock.