All phones I had lasted at least 3-4 years of constant extensive use. In my Samsung Omnia, I had to change a battery after 3 years just and I was using a lot of

All phones I had lasted at least 3-4 years of constant extensive use. In my Samsung Omnia, I had to change a battery after 3 years just and I was using a lot of it - especially as a GPS unit. The battery fault was also my wrongdoing in this case.