Nokia E6 00 is the first mobile which I have bought. It has the best battery back up. Its been five years now and I am still using it. I haven’t faced any issue.
Talking about its features. Camera quality is good with 8 mega pixel, front cam is available but not that great. It supports android apps and Java applications as well.
And the Best feature is the touch screen which is the feather touch. It has not even a scratch until now.
Only disadvantage is that it cannot compete with the new smartphones in other features.