The first thing you need to consider is whether you want to have an audio-only baby monitor or one that incorporates video. Some parents choose to use smart home security cameras that send a video feed and alerts to their phones via an internet connection instead. Your choice largely depends on your budget and how high tech you want the baby monitor to be.
The longest battery life for the dedicated products in our review is the Levana Lila, which ran for 12.75 hours in full use mode. The manufacturer claims this unit will work up to 72 hours in power saving mode, but we only tested the monitors in full use. The Infant Optics DXR-8 came in second place with a shorter run time of closer to 11.5 hours. The Motorola MBP36S earned the lowest score for battery life with a runtime just under 7 hours. While not necessarily a deal breaker, there are plenty of other reasons to dislike the Motorola MBP36S, and the battery life is just a small part of a disappointing overall picture (no pun intended).
The Snuza Hero SE is a wearable device that clips to baby's diaper or bottoms. It has a unique vibration alert that attempts to rouse little ones into moving enough to stop the impending alarm that will sound audibly if the baby doesn't move. This vibration feature means that false alarms may be less likely to result in a crying baby, though they could cause lack of deep sleep if they happen continually. The Snuza is a nice wearable choice that is easy to use, portable, and didn't have many false alarms during our testing. While it is not a replacement for safer sleep practices, it could provide some parents with increased peace of mind for a better night's sleep.
The DXR-8 packs a lot of punch for the price, including a sound-activated 3.5-inch full-color LCD screen, crystal clear video quality, and an impressive 270-/120-degree pan and tilt range ⏤ controlled remotely, of course. It’s also the only baby monitor on the market to include interchangeable lens for advanced zoom and wide-angle shots, in case the only good spot to set up is across the nursery from the crib.
Range of signal: Some baby monitors have better range than others. If you live in a big house with multiple rooms, range will be a key consideration for you. Anyone who lives in a single-story house or a smaller apartment may not need as much range. Many baby monitors have an alert when you get out of range, and the packaging typically gives you an estimate of the range. Bear in mind that range varies widely from home to home. The construction of the walls between you and the baby monitor may even limit the range.
Today’s best baby monitors are not your mama’s baby monitors! High-definition video monitoring is becoming the norm, and many baby monitors are now app-enabled or have wi-fi capabilities. Even basic audio monitors have stepped up their game, with many implementing DECT (Digital Enhanced Cordless Telecommunications) technology to eliminate the interference and the lack of security that comes from monitors using the 2.4 GHz frequency band. If you’ve ever heard your neighbors chatting through your baby monitor, you’ll appreciate this change! DECT also prevents super-creepy baby monitor hackers from spying on baby—or you!
Battery: We wanted a monitor battery that could last overnight, or at least eight hours, without being plugged in. We thought the ideal product would automatically cut off an idle display screen to conserve battery, work at least a few hours unplugged with the screen on, and recharge fairly efficiently. We made a rechargeable battery a requirement. We preferred units designed to connect to power via a standard USB connector, and looked for reports that the baby monitors could reliably charge, recharge, and hold a charge long-term—a disappointingly rare ability in baby monitors.