Motion and audio sensors: In the old days, parents were forced to endure a consistent ambient hiss from their audio monitors while they listened for their child’s stirrings or cries. Mercifully, many modern baby monitors will stay in “quiet mode” until they detect motion and/or sound, which will trigger an alert, such as activating the handheld video display or pushing a notification to your smartphone.
Most people want to use a monitor at home, overnight, with audio on in the background, checking in on the video signal only occasionally. Our pick makes that task simpler and more reliable than an Internet-connected monitor. But if you regularly want to access the monitor while away from home, the Arlo Baby is the best Wi-Fi–equipped option. Whether you’re at home or away, the Arlo streams exceptionally sharp video to your smartphone’s Arlo app, and can save clips too. Unlike other Wi-Fi–enabled monitors, the Arlo also has the advantage of a longer track record, larger owner base, consistent app support, and strong reviews, as well as the rare ability to stream audio in the background with the phone screen off. But Arlo’s reliance on your phone and an Internet connection creates its own annoyances. It has routine issues with maintaining a connection and staying logged in. Additionally, glancing at your phone to check on the baby often comes with a side of unrelated and unwelcome push notifications.
The Nanit baby monitor has some of the same features as an Arlo, plus an app that offers more analysis of your baby’s sleep and development, in addition to the basic video feed. However, it costs more than the Arlo, lacks the robust support and security of the Arlo app, and shares the same issues with connectivity that plague all of the other Wi-Fi–enabled monitors we’ve seen.
A WiFi monitor gets rid of the parent unit entirely and replaces it with a smartphone app. That app connects to the baby unit over the internet, rather than standard radio frequencies. As a result, you’ll never have to worry about being out of range from your camera. If you’re at dinner and want to check in on the babysitter, you’re still connected. Since it operates from an app, it’s also easier to flip through features than trying to figure out a finicky, low-quality touchscreen, or a dozen different buttons.