I read somewhere, actually I think it was an interview with Google's Saul Griffith, who said no smart phone was designed to run longer than 6 or 7 years in idea

I read somewhere, actually I think it was an interview with Google's Saul Griffith, who said no smart phone was designed to run longer than 6 or 7 years in ideal circumstances. Realistically I imagine 5 years as unusually long regardless.