It may surprise you to hear that simply being able to last through the night, unplugged, with the display off, qualifies as exceptional battery life for a baby monitor. The Infant Optics was one of the only monitors in our testing that could easily do that, and then last a while longer the next day before needing a charge. (The manufacturer claims it lasts 10 hours with the display off—we got that amount of time off a full charge, even when checking the display intermittently.) This model also charges via a USB connection, which actually sets it apart from a variety of competitors, some of which use ineffective and inconvenient proprietary DC chargers or even disposable batteries.
Video, Audio, or Both: First-time parents are suckers for high-definition, night-vision baby monitors where they can pick up on exactly how their child’s chest is rising and falling. You will do this dozens of times a night. Past the Sudden Infant Death Syndrome-scare age, you may just want an audio baby monitor (which a lot of video ones double as), because you’ll know an “I’m hungry” cry from an “I lost my sock” whine.
In early 2011, two infant strangulation deaths prompted a recall of nearly two million Summer Infant video monitors. The CPSC also reported that a 20-month-old boy was found in his crib with the camera cord wrapped around his neck. In that case, the Summer Infant monitor camera was mounted on a wall, but the child was still able to reach the cord. He was freed without serious injury.
Gone are the days of silently peeking into the nursery to check on your napping baby and then, whoops, accidentally waking them up (“No, no, please no!”). A baby monitor uses a camera to watch over the crib, while you carry a handheld device that lets you know what’s going on with your child at any given moment, no matter where you are in your home. There are also other monitors that track sleep or breathing either with a clip or sock.