When you do your online searching you need to be looking for an "activity tracker".  I highly doubt you will find one worth wearing for $50.  I also doubt you will find one that does not need an app on your phone as the app will be necessary for configuring what you want the watch to display and how you want it displayed.  Up your budget.  I'm wearing an Apple Watch Ultra 2 right now.  I know you don't want Apple but I like it.  I also have two Garmin watches.  I prefer them if I'm doing longer endurance workouts.