Use the original cable that came with the watch. Make sure it isn't damaged and if it is or you don't have this on hand, then order the cable from reputable websites like currys, Samsung, etc.. 😁
Hey thanks for that. Yeah I'm still using the original cable...... I even tried a friend's cable which is the original cable and my watch still didn't charge..
Then probably, there is an issue with the watch... I would say best bet is to go to a phone repair shop and describe to them this situation and I'm sure they can easily sort this problem out 😀.