smart baby monitor for 3 month baby, some recommendation ?

I'm a new mom. my baby is 3 month. I'm trying to search a smart baby monitor to help me worry less. I have checked Nanit, owlet, and miku, but the function is not enough. If a monitor can track heart rate, breathing, and body temperature, i think that's the better. A new brand ConnHug smart baby monitor is all-in-one, which can meet my need. But I cannot find some reviews, someone recommends connhug?