There’s no real evidence that consumer devices keep infants safer, and doctors say “peace of mind” isn’t a good enough reason to buy them, reports The Atlantic.

No longer is it enough to simply hear one’s baby howling from the next room, with a walkie-talkie style audio monitor (or, for that matter, through the walls). These days, there’s enough technology out there for parents to create a Batcave-esque baby-surveillance command center—built on live video feeds, wearable temperature trackers, breathing and movement monitors, and more.

But which of these devices, if any, actually keep baby safer? And how are parents supposed to separate the legitimately useful technology from sensor-equipped snake oil?

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