Yeah, I use my phone to track my steps. It's an iphone SE (circa 2022, I think) and it has some app in it already. I won't be getting anything else added to my phone.Your phone should have a health app which you can use to track your steps and other things but you have to keep your phone with you.
I started keeping my phone with me after my neighbor had a heart attack, just in case she called and needed help. Her heart attack is what inspired hubby and me to start working out every day. (She's still with us! Yay!)
What Kiki has, the thing that tracks her heart rate, is interesting. But I'm not getting another gadget, and definitely not something I have to wear. I don't like "stuff" on me. No rings, no watches (who wears a watch anymore?).