I mean, you are talking about a general purpose computer + quite great camera + multimedia device that fits in your pocket and is battery powered. The only ones we get close to 10 years of review were pretty much experimental phones, only recently did we reach a much more slower pace of development where a current gen phone is not that different from a 3 years older gen one. Current ones use much more durable materials (steel frames, glass which is contrary to “breaking easily” is one of the hardest materials, thus being very scratch resistant), and better, more performant hardware that won’t become multiple times better year-on-again, so besides replacing the battery every 3-5 years, they might very well have a longer lifespan.