Weiss has now announced he has put pen-to-paper with Bolton after snubbing interest from Wigan manager Roberto Martinez, who is on the verge of signing Villarreal striker Marco Ruben.
"Still on Thursday it looked in the balance, either Bolton or Wigan," the Slovakian told Dennik Sport.
"I personally spoke with both managers, Mr Coyle and Mr Martinez. They are both very sympathetic, so in this aspect it was all-square in my decision-making.
"I would say that the decisive thing is that Bolton were more persistent. When I was going through the club, I thought, 'okay, this is the right club'."
It was rumoured earlier in the week that Weiss had turned down an offer from Bolton but the 20-year-old insists that was not the case, adding: "I don't know where this piece of information came from.
"I have never said anything like that. I can't explain that, but now you see there is no sense in it as I have denied that by signing the contract."