Some audio/video monitors filter out "normal" sounds and motions. The receiver is supposed to turn on only when your baby makes an unusual motion or sound, such as crying or rolling over when he's waking up from a nap. This feature is designed to extend battery life, although the receiver should be docked for overnight monitoring to keep the battery charged. We haven't tested any models with this feature, so we don't know how well it works.
In addition to monitoring your kids, you can use the camera’s two-way talk to soothe your child (smart for when you sleep train), and it also comes with Intelligent Motion Alerts to let you know if something’s happening in the room. You can also choose to record video footage on an SD card (not included) if you want to use this product as a nanny cam.
Video quality is a metric these products should perform well in, but most of them failed to offer a true to life image even in the daytime. It is disappointing that most dedicated video products aren't doing more than providing a blurry image of the baby in the room, and fail to show the baby's features or what the human eye would see in the room. The night vision is even worse than their day vision video, with some images being so blurry and hard to decipher that parents may end up going to baby's room simply because their baby has no face.
Most people don't have unlimited data plans for their smart phone, and are surprised to see very high data usage after just a few hours of streaming their wifi baby monitor. With HD video, you can go through a couple gigabytes of data in just a few hours, so keep that in mind. If your phone is connected to wifi that won't matter, but if you're using 3G or 4G LTE cellular service, you will definitely have slow video and tons of data usage.
The Philips Avent DECT SCD570/10 is a sleek looking, quality sound device that has a more extended range than much of the sound competition. It has a battery life of over 30 hours and excellent sound clarity for true-to-life sounds. The nursery unit has a nightlight, lullabies, mic sensitivity function, and a 2way talk to baby feature providing the most popular features for today's demanding parents.
If you sleep in the same room as your baby or live in a small enough space that you can always hear or see what your baby is up to, you probably don’t need a monitor. Otherwise, most parents enjoy the convenience a baby monitor provides—instead of needing to stay close to the nursery or constantly checking on your child, you’re free to rest, catch up on Netflix or get things done around the house during naptime. Monitors can also double as a nanny cam to keep an eye on your child and their caretaker.