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?
In our tests, Levana Ayden did well in the categories where Levana Keera underperformed, particularly with regards to user-friendliness. This was most noticeable in the simple controls, which are easy to learn. Levana Ayden also has a few useful extras such as a built-in nightlight and three lullabies to help sooth your baby as they sleep. This unit costs around $90, which is quite competitive with other video baby monitors. Unfortunately, the unit lacks the ability to remotely reposition the camera and has lower than average video quality, which can make details hard to see. The audio had mild interference, but this didn't affect the overall quality much. The one-year warranty is typical of video baby monitors.

Long Range: Monitors that don’t connect to WiFi have a limited range, usually around 600 to 1,000 feet. While this is large enough for all but the biggest houses, we asked our testers to find out how far they could wander away — and how many walls they could put between them and the baby unit — before they went out of range, as well as to report back on what happened when they did. Sometimes there was an alarm or a notification, but other times the screen simply froze.
Below we list our top 5 baby monitor results, some of which are self-contained units, whereas some use wifi and your smart phone. Then we detail our in-depth reviews. After our buying guide, at the end of the article you can find more details about how we evaluated each model. Note that if you're looking for a sound-only baby monitor (an audio baby monitor), click here.
Wireless encryption: This ensures that no one else can tap into your monitor’s “feed” and see what’s going on in your house. WiFi-enabled monitors are great for portability and range, but may be more susceptible to hacking. If you go this route, be sure to secure your home wireless network and keep the monitor’s firmware updated. Otherwise look for digital monitors with a 2.4 GHz FHSS wireless transmission.