Regretting My Galaxy Watch 5 Purchase from Vodafone's Ouno Service

I bought a Galaxy Watch 5 through Vodafone's Ouno service because I thought it would be a device that I could wear. But I really regret this decision because the watch can only be charged through a phone. The charger they gave me is meant to charge the watch by connecting it to the phone. However, this drains the phone's battery while I'm trying to charge the watch. I really think they should fix this problem by sending a charger that works with the product they sold. It's annoying to find such a basic flaw in a product, and I hope they fix it as soon as possible.