When it comes to video monitors, you'll want to make sure that the one you're buying offers night vision and a decent resolution. Most baby monitors with a dedicated viewer sadly have low VGA resolutions, which are much worse than the majority of smartphones you can buy these days. A few have a 720p HD resolution, which is decent. We hope more baby monitors go that route in the future.
Image and audio quality: We wanted a high enough resolution to make out facial features in the dark, at more than a few feet of distance, and (obviously) in daylight as well. The screen itself did not need to be incredibly high-resolution, but we wanted a size that would be easily visible on a nightstand. For all monitors, but especially audio-only options, we wanted to be able to hear everything clearly at the lowest volumes.
Not bad, although with the specs so similar to the Kindle Oasis, I'm surprised that the price isn't more competitive (the Oasis is $250). Basically, you're just getting a slightly larger screen for that extra $30, but size doesn't really matter with e-books. In fact, I kind of wish there was a compact e-Book reader about 75% the size and weight of a Paperwhite.EDIT: Also, I'm waiting for the next generation of e-readers that use the new CLEARink screen technology. With luck, we might have one by end of 2019 so my trusty old Paperwhite will just have to hold out a little longer. https://www.makeuseof.com/tag/dont-buy-e-reader-upcoming-technologies-kill-kindle/
The main reason you’re going to need a baby monitor is to answer a simple, but time-honored, question: Why the hell is my baby crying? It’s only been in the last 30 years or so that parents have relied on the remote surveillance of their sleeping children. For the eons before that, it was a combination of natural, ear-piercing cries, and sleeping in the same yurt.
Video products add the element of visual peeking on your baby, so you can see if your baby is crying but calming down without you or if you need to make your way to their side. Most video products work well in the dark and have adequate sound so you can see and hear what is happening in the room. Some options are dedicated with a camera that talks to a parent unit, like the Levana Lila while others use your Wi-Fi to send information from the camera to your personal device like the Nest Cam. Wi-Fi options are great for larger houses where range could be an issue, and it's also nice for away from home monitoring. While video images are not mandatory for getting a good night's sleep, they do provide more information that can help you determine your little one's needs before you get out of bed. With the price of video products being lower than ever, it is no longer considered a luxury product and many parents are choosing this style over sound only products. However, proceed with caution! Spying on your newborn can be addictive and lead to less sleep which defeats the purpose of a getting a monitoring device in the first place.
Baby's exposure could potentially be even lower if parents place the camera on a wall at least 15 feet from baby (a distance still good for night vision to work properly with most monitors). Given the sensitivity of baby's developing systems we recommend placing the monitor as far away from the baby as possible while still being able to utilize the night vision as intended and see baby's face to determine if they are awake or sleeping at a glance. For most of the products, this distance is between 10-15 feet from the baby.

We tested monitors daily over a period of several months, in three houses: one nearly 100 years old with plaster walls, plus a newer home with standard drywall construction, and a two-level 1960s home with a driveway on another level from the kids’ rooms. We tried the cloud-based monitors with two routers to be sure that any connection issues were with the monitors themselves and not the Internet connection.
Like many monitors in this price range, the SafeVIEW provides a lot of bells and whistles: remote zoom, tilt and pan of the camera, two-way communication and a range of 900 feet so you don’t have to stress about chatting with your neighbor outside during naptime. The SafeVIEW also has a built-in nightlight that you can turn on and off using the monitor. And, if the monitor is going nuts every time a big truck drives by or during a thunderstorm, you can decrease its sound sensitivity to not pick up the background noise.