Owlet Smart Sock Baby Monitor

In case you don’t have enough to worry about once your newborn baby has arrived, Owlet Smart Sock (that’s the product’s actual name) offers to ramp up your anxiety by measuring their heart rate. Never mind that some of the reviews say it doesn’t work reliably and shouldn’t be used as a medical monitor – pair it with Hatch Baby, the infant weight-tracking smart scale, to get yourself so revved up you’ll never return to normal.