Hmmmmmmmm. I've always been a fan of the classic Casio aesthetic, and I want to want it, but this is a strange point in the functionality-vs-price space.
A base F-91W costs less than half that, and my phone can already track steps with reasonable reliability.
An entry-level fitbit costs about the same and monitors way more stats including heart rate, SpO2. Worse battery life and appearance, but if I wanted that featureset it's probably what I'd get.