The answer depends on your needs and the role you want the baby monitor to play, but knowing the difference can help you make a good choice. While radio frequency monitors have a shorter range and may increase your child's exposure to harmful electromagnetic waves, they’re considerably safer from baby monitor hacking and feature a convenient parent unit. Plus, they can do their thing even if your Wi-Fi isn't working.
In contrast, Wi-Fi monitors send footage of your infant straight to your smartphone via your internet connection. Although this provides access to a plethora of new features and monitoring possibilities, it also raises concerns about your child's privacy. This means that to see and hear your kid, you must keep your tablet or phone powered on at all times. Also, it isn’t an ideal option if your Wi-Fi connection is interrupted or you have connectivity issues.