Interchangeable Camera Lenses: Some of the newest baby monitors have interchangeable lenses to best suit your baby's room. If you have the camera positioned close to the baby, like on the edge of the crib or on a nearby dresser, you might prefer the wide angle camera. If you have the camera positioned relatively far from the baby, like on a bookshelf on the other side of the room, you might prefer the regular narrow angle camera. Flexibility is nice, particularly if you end up rearranging the room or have to move things out of the reach of a growing menace.
As a parent, your baby’s health and safety are of paramount importance. Therefore, you and other parents may use a baby monitor to make sure that your kids are safe and sound. There are many baby monitor options available including those from brands such as Samsung and Motorola, so it is important to know what features these models have to make the right decision for your family.
Wireless systems use radio frequencies that are designated by governments for unlicensed use. For example, in North America frequencies near 49 MHz, 902 MHz or 2.4 GHz are available. While these frequencies are not assigned to powerful television or radio broadcasting transmitters, interference from other wireless devices such as cordless telephones, wireless toys, computer wireless networks, radar, Smart Power Meters and microwave ovens is possible.
Before buying or registering for a baby monitor (or any wireless product), be sure you can return or exchange it in case you can't get rid of interference or other problems. If you receive a monitor as a baby-shower gift and know where it was purchased, try it before the retailer's return period ends. Return policies are often explained on store receipts, on signs near registers, or on the merchant's website. But if the return clock has run out, don't feel defeated. Persistence and politeness will often get you an exception to the policy. Keep the receipt and the original packaging.
By default, Arlo Baby records in 720p resolution, though you can switch to 1080p if you prefer. You can also adjust the field of view and fine-tune notifications on what triggers an alert. You do have to position the camera manually, however, and the gap between getting a notification on our phone and actually being able to jump to live video was a little laggy for our tastes.
You can control the Arlo via multiple platforms, including Alexa, HomeKit, Google Assistant, and IFTTT. The camera itself can work wirelessly off a rechargeable battery for several hours (which no other monitor we’ve tested can do), and it can track and chart several days’ worth of temperature or humidity in a child’s room. You can set it to notify you if it detects unusual temperatures, humidity levels, or “air quality,” a VOC measure the Arlo Baby manual (PDF) suggests you alleviate by either opening a window or removing the source of the VOCs. (Our also-great pick for the best air purifier is one of the few that actually does genuinely eliminate VOCs, but it ain’t cheap.) If you find that the notifications are too frequent, you can adjust what’s triggering the alerts (by raising the threshold up to 80 ºF, for example, if you don’t want a notification telling you it’s too hot at 76 ºF). You can store video from the camera online, but in six years of parenthood we’ve never once wanted to review baby monitor footage.
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. For Wi-Fi–enabled monitors viewed via a smartphone, we noted if using the monitor put an unusual strain on the phone’s battery life.