Which iphone phone battery last longer?

Those who had iphones which one did the battery last longer? Iphone 4s or Iphone 5s?

Some people have told me that the 5s doesn't have a good battery that they go to work with 100% and don't touch it and when they get home its down to 80-70% from doing nothing.

IPhone 5S has more battery pack but I would suggest either one of them above then purchase a Powerbank battery pack.

The battery life of the iPhone 4S comes in at a maximum of 8 hours of 3G talk time, while the iPhone 5S gets up to 10 hours of talk time. When it comes to internet usage, the iPhone 4S gets up to 6 hours of 3G and 9 hours on Wi-Fi, while the iPhone 5S gets up to 8 hours on 3G and up to 10 hours on Wi-Fi.