Intuitive and User-Friendly Menu and Features: What good are 25 fancy features if you can't figure out how to navigate the menu and customize settings or change options? All of the best baby monitors reviewed above have great utility, with high video quality and a nice feature set, but some of them have relatively high usability, which comes in handy when you don't want to spend too much time shuffling through menus to change one silly setting.
Frequency: Some baby monitors operate on the same 2.4GHz frequency band as household products like microwaves, cordless phones, wireless speakers, and so on. When the monitor is on the same frequency as a number of other products, you can experience interference and static. You may want to get a monitor that uses a different frequency like 1.9GHz, which the Federal Communications Commission sets aside for audio-only applications. It's called DECT, or Digitally Enhanced Cordless Telecommunications.
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.