The Wi-Fi monitors all have lower EMF readings than the dedicated options with the lowest average EMF readings being 0.87 for the LeFun C2 720P Wi-Fi and 0.92 for the Nest Cam Indoor Wi-Fi with the reader 6 ft from the camera. The lowest average value for the dedicated monitors at 6 ft is 1.89 for the Infant Optics DXR-8 and 1.91 for the Philips Avent SCD630.
Rechargeable batteries: Since the camera will most likely stay trained on your bundle of joy, it can remain plugged into AC power. But parent unit displays are designed to be always on and carried with you as you move from room to room. That can drain batteries quickly. Look for a parent unit that runs on rechargeable batteries, so you’re not constantly swapping them out.
The LeFun C2 720P Wi-Fi earned a 3rd place rank thanks to high scores for range and battery life, and impressive results for video quality and features. This monitor earned a Best Value for Wi-Fi monitors for its budget-friendly list price that is the least expensive in the group and its higher rank. This means you can get a great, top performing monitor, at a reasonable price. The LeFun has motion detection, sound activation, 2-way talk to baby, zoom, and a remote-controlled camera with real pan and tilt capabilities. The downside to this camera is a lag time when using the pan and tilt feature, and it is a little harder to use than the other Wi-Fi options we tested, but given the low price, we suspect most parents will forgive these flaws.
The monitor uses a 2.4GHz frequency to boost the signal strength between the camera and the parent unit. In our test, the parent unit functioned 150 feet away from the camera, and it can work up to 1,000 feet away outdoors. The baby monitor alerts you once it's out of range of the camera. This earns the baby monitor a 70 percent connectivity score. We tested connectivity by positioning one unit upstairs with the monitor on the floor directly below. There was a noticeable delay on the monitor between video and audio feeds.
You start running into problems when you download the third-party app that allows for monitoring via your mobile phone. In theory, this should add all sorts of features, like push notifications, motion and audio sensing, and video recording for later viewing. And Motorola would be one of the only companies offering both a base station and app. The problem is, the app's connection is so intermittent, I could barely even try out those features, let alone use them with any sort of consistency.
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.