The 21-year-old defender has revealed the offer to join the Swans was "too good to turn down" and that the similar philosophy to his old club was one of the reasons he joined
The young defender has secured a reported £1 million move to the Liberty Stadium, which ends his five-year stay in north London, where he failed to make a single competitive appearance for Arsene Wenger's side.
Bartley becomes Michael Laudrup's fourth summer signing, joing Spanish duo Michu and Chico, and Jonathan de Guzman who is on loan from Vilarreal, and he revealed that the similarities between his old and new club made the decision to move easy.
"I had my education at Arsenal and I do like to play football and play it out from the back and watching Swansea last year that is exactly what they have done so that is a massive thing for me joining Swansea," Bartley told the club's official website.
"I was newly-promoted to the Arsenal first team and I spoke to the boss Arsene Wenger briefly last week just wondering what his plans were for the season and he told me game-time would be at a minimum to be honest.
"For that reason I wanted to at least go out on loan and that was going to be the plan until Swansea came in and it was just too much of a good opportunity for me to turn down."
Laudrup has since made another acquisition in Jamie Proctor, who joins from League One side Preston. The 20-year-old has spoken of his delight to finally make the switch which sees him make the leap to the top flight.
"It has been a long, drawn-out process that has been going on for a while now and it has been a long summer waiting for it to happen but I'm finally here and settled in - I'm delighted to be a part of it," Procter said.