Bad quality products being sold!!

I purchased a nevenoe bluetooth smart watch on takealot.com, they responded by saying they had to send the watch back to the supplier. Wich was done, after opening the box and wearing it it seemed that the watch was replaced as requested. I went for a shower and exactly the same problem occurred with the "replaced" watch. How does two different watches do exactly the same thing???

I purchased 3 of the same watches and only 1 of the 3 had such problem.

It seems to me that the watch was not replaced, rather just repackaged and sent back to me from the supplier.

Upon inspection of my watch I realised it was the same watch, I marked the watch to ensure that the same watch does not get sent back to me, because I have experienced similar problems in the past with products not being replaced and just being sent back.