I loved my zip. I wore it about 4 years, to set my intention each morning. Clipped it to the front of my bra.
I think I must have nudged it off when unloading the lawnmower bag a couple of weeks ago, I've walked and walked
the lawn but no sign of it. Lime and I loved it.
But I don't plan on replacing it, too expensive. I'd never bother with the fancier ones, I'm too practical, and have my phone with me as little as possible so using an app would be a bust
here is an older thread too
Anyone use a FitBit?