Many audio/video monitors feature infrared light or "night vision" so you can see your baby on the monitor even when she's sleeping in a dark room. And some audio models feature a night light on the nursery unit that you can activate from the receiver. Other features may include adjustable brightness, and the ability to let you activate music or nature sounds to soothe your little sleeper by remote.
The handheld unit's 5-inch screen is the largest in our review, complementing the camera's wide-angle lens. However, its resolution is the same as smaller units, so the video quality, while acceptable, is poorer. Also, you can't move the camera remotely, a feature you may not use if you only watch your baby as they sleep. The Wide View 2.0 makes up for its video quality with a user-friendly design. It only takes a few minutes to set up and a couple hours to charge the handheld unit. The handheld unit lets you adjust the volume and has an uncomplicated menu. This simplicity comes at the cost of common features – the Wide View 2.0 doesn't track room temperature, and it can't play lullabies through the camera unit. Because this is a simple video monitor, the battery lasted nine hours before it needed to recharge during our tests. The overall best baby monitor, the Infant Optics DXR-8, went 10 hours before shutting off, so this is a very good result. The Summer Infant Wide View 2.0's handheld unit has a limited indoor range compared to most other baby cameras – it’s good enough for most homes but insufficient in particularly large ones. Summer Infant offers a one-year warranty, which is average for video baby monitors.
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?
Frequency: Some baby monitors operate on the same 2.4GHz frequency band as household products like microwaves, cordless phones, wireless speakers, and so on. When the monitor is on the same frequency as a number of other products, you can experience interference and static. You may want to get a monitor that uses a different frequency like 1.9GHz, which the Federal Communications Commission sets aside for audio-only applications. It's called DECT, or Digitally Enhanced Cordless Telecommunications.
Your phone might not have great battery life. Many parents who use a wifi baby monitor come to the realization that their smart phone battery life isn't so great when they are streaming a live video and audio feed from their baby monitor. If you have a newer iPhone or Android device, it will probably do pretty well, but if you have an older phone the batter is probably a bit weaker already and you will notice your battery life dropping pretty quickly during use. So definitely consider battery life and charging options for your smart phone when you are choosing between a self-contained versus wifi baby monitor.
While ranking among Amazon’s top-selling baby monitors, the Motorola MBP36S and MBP33S, which are listed on the same page, have more negative reviews than positive ones. Many reviewers complain about poor battery life and deficient quality and durability. BabyGearLab also gave these monitors a low rating, citing the “disappointing images and sound on a hard to use parental unit.”
The Nanit couldn’t be more perfect for analytical types. The camera—when placed just so—uses computer vision to watch your baby’s every move, and then tell you what it means. You get a notice on your phone, which acts like a handheld monitor, when your child is awake, acting fussy or has fallen asleep. The Nanit also assigns a sleep score to each night based on how many hours your child was actually crashed out. Other stats include how many times you went into your child’s room and how long it took for your little one to fall asleep. Because the Nanit streams live video and audio to your phone, you can also check in on your kiddo when you’re away from home. It also has a nightlight and temperature and humidity sensors.