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 for 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 range or greater.1 

Many of the baby monitors we've tested are internet-connected, letting you watch infant with your phone or tablet through an app just as if you were checking a home security camera. Because of this, you might not actually get a standalone display to go along with the camera. They aren't out of the question, however; some camera-only baby monitors offer viewers as an add-on or in a bundle. And if there aren't any available, you can simply get an inexpensive tablet like the Amazon Fire to use as a dedicated viewer.

Look for a monitoring system that is a good fit for your home and lifestyle. For example, if you’re in a small apartment in a busy city, having a monitor that has a long range won’t be as important to you, but one that screens out background noise will. For parents that frequently travel or work long days, being able to check on your child from anywhere and talk over the audio can help keep you connected. But, for those who are with their kids most of the time this might not matter much. The point is, consider what will make parenting easier and your family happiest and you can’t go wrong.
Last, a few features are simply not that useful, but they’re more like unnecessary clutter than legitimate flaws. The talk-back feature can be difficult to understand on the baby end of the line (we found that it works best—that is, intelligibly—if you speak about a foot away from the microphone, and avoid shouting). A “shortcut” button to control the monitor’s volume and brightness doesn’t really save you much time. There are other features on the menu—with the little songs, a timer, and a zoom, you have a total of about seven. But honestly, after testing this monitor for some time and others for years longer, the only thing you really need to be able to do regularly is adjust the volume.
Baby monitors, despite the name, are meant more for the caregiver than they are for the baby. We asked parents about which features they felt were helpful, like a long range so they could wander carefree all over the house, and reliability so they weren’t struggling to maintain a signal. Other features like being able to play lullabies, or receive temperature alerts are only as useful as you make them. And a few features, like motion monitors, can be exceptionally comforting for some, and distressing for others.
The camera, which is the most elegant looking of the testing group, sits on a magnetic base that unfortunately cannot be mounted on the wall and must sit on a surface. The camera itself cannot be tilted or panned. It can only be adjusted manually within the concave base—meaning it can be pointed downward, at least a little bit, but its wide-angle lens lessens the needs for dramatic angle adjustments. The unit also include a “privacy mode” where the decorative cover can be rotated to block the camera and signal it to not record any audio or video.
Like most Wi-Fi–enabled monitors, the Arlo Baby offers several capabilities you won’t get with a simpler RF video monitor like our pick. You can access the camera remotely via your smartphone (or computer), you don’t need to worry about finding and charging a dedicated monitor, the video quality is far superior, and you can even store video online if you want. The Arlo is part of a robust, reliable security camera network, with more consistent app support and customer service than its Wi-Fi monitor peers. If you already use and love Arlo products, this could be a logical addition to your home-monitoring setup. Yet when you get down to actually using the product in the usual circumstances—at night, in the background, mostly on audio, with the occasional video check-in—you’re not really thinking about all of those features. That’s because you’re too busy trying to reestablish the connection and remain logged in! At times, relying on the Arlo means accepting a level of inconvenience our relatively simple RF video pick never puts you through.
Our testers preferred the Baby Delight’s parent unit — its buttons were more responsive than Angelcare and it was easier to set up. This movement monitor uses a cordless magnetic sensor instead of a pad. Because the sensor is clipped onto your baby’s onesie, right next to their chest, the alarm won’t go off if you forget to disarm it before a middle-of-the-night feeding.
The Infant Optics’s range within our test houses was never an issue, and, as with other monitors we tested, we had to walk outside and down the street before losing the signal. The image quality was good enough to make out facial details 6 feet away in a completely dark room (as it was on others we tested). You can easily add more cameras to the set—you can use up to four Infant Optics add-on cameras, which are separate purchases, usually for about $100. You can mount the camera on a wall easily; pan and tilt 270 and 120 degrees, respectively; and set the parent unit to scan between multiple cameras to keep an eye or ear on everybody at once—another nice feature that’s not unique to this model.