Vitals Monitor

After 10 weeks of blissful ignorance, My boyfriend has realized how terrifying and devestating SIDS can be (his friend's 4 month old passed recently). He is now insisting (I've been begging him since day 1 so I'm very happy) we get a nighttime monitor, but I have no idea what to get. I like the price and functionality of the angelcare monitor but I don't know if something like Owlette would be better. I need suggestions!!!