For the parent devices of dedicated monitors, the battery life ranged anywhere between 6.75 and 12.75 hours. The Wi-Fi options are harder to gauge given that the battery life depends on the kind of device used, whether or not it is being used for other applications simultaneously, and how old the battery is in the device. In general, however, we feel it is relatively safe to say that most will work longer than the best dedicated monitor battery if the device is dedicated for use with the monitor only and is not running other applications simultaneously.
Below we list our top 5 baby monitor results, some of which are self-contained units, whereas some use wifi and your smart phone. Then we detail our in-depth reviews. After our buying guide, at the end of the article you can find more details about how we evaluated each model. Note that if you're looking for a sound-only baby monitor (an audio baby monitor), click here.