Sony Ericson T610. Got it when I was 17, it lasted for 4 years until the charging port got warped and air couldn't charge it anymore. Then over the next 3 years I went through 2 cheap LG phones and a Razr v3 I drowned, until a got a Tmobile G1. Then got the "G2" which was some HTC phone with a name I don't remember in order to get 4g, and eventually the touch screen gave out. GALAXY S3 (charging port warped), Note 4 (upgraded when it kept self rebooting), S9 Plus (lost it in Munich during octoberfest 2019), and now have a Note 10 plus.
So 10 phones in 18 years. Not too bad.