The headphone things? I just use wireless earbuds they are probably cheaper and I can use them at work. Need to get some new ones though as my brand new pair are faulty and I washed my last ones which were also a bit dodgy .
I use an amazfit band. I don’t have an apple watch as I don’t like how big they are. Also use equilab but it doesn’t syn with apple fitness unless I use an old spare phone.