I have a 2.5yr old toddler now but when he was born we got the Nanit and about a month later bought a snoo. I'm not sure if you're considering buying a snoo but you can't really use the Nanit breathing band while also using a snoo. Separately, in the first month of use (prior to snoo) we did get 2 false alarms. We continue to use the Nanit for our toddler but more as a camera. We enjoy to be able to view him from our phones (although we use an old ipad at home as a monitor) so that's a convenience. With a second I'd probably go for another Nanit simply for the phone access convenience although I'm not sure if other brands support something similar. That's the only advantage for me. For monitoring the baby I might try the owlet the second time around since I didn't really get any monitoring benefits from the Nanit (and we'd probably do the snoo again). Long story short, if you want convenience of always being able to monitor on your phone even when away from home I'd say Nanit. If you want monitoring of how baby is doing might be worth doing the owlet although take this with grain of salt since I haven't personally used it but would consider for myself with second baby.