Baby Monitors: Neebo versus Owlet

I am pregnant with my rainbow baby due in December after losing my 5 month old son at the end of January to SIDS. I plan to use to monitor to track heart rate/breathing, etc. I am hoping this will help give me more peace of mind to be able to get some sleep and immediately be alerted in the situation something starts going wrong before it could be too late. I recently pre-ordered the Neebo which is not yet on the market. Can anyone who has the Owlet tell me what they like/don't like about it or other monitors you have?