I saw someone posting all the phones they ever had on Twitter so I counted the (main) ones I carried with me over the past 13 years. Longest lasting so far were the iPhone 4s, 7 and XR (each 2+ years)
Honorable mentions: Samsung Galaxy S5+, BlackBerry Classic, Nokia 8110 and HP Pre 3
@smfsk oh my, that one Sony Ericsson almost everyone had...
funfact: only 4 out of these 10 had a 3.5 mm headphone jack!