CasioHerren Digital Quarz Uhr mit Resin Armband

Do you need to charge the watch or does it run off the battery?

I'm a boxing coach, I keep forgetting to take my watch off when showing punches etc and snapping watch straps. Are these watches durable enough?

Is it rechargeable?

Do you have to use the Bluetooth feature to set up the phone particularly if you are not going to use the step tracker ?