Samsung flagship devices are the best powerful android smartphones available in the world. The main thing behind the samsung devices is its Amoled display, Touchwiz UI, Beautiful camera, And the excellent build quality. The samsung galaxy s5 is powered by fingerprint sensor and Exynod octa core processor. the battery is not at all good but it is not a problem by samsung it due the android os running in it.
Every android os containing backgroup running apps this causes battery drain and its not at all a problem behind samsung galaxy s5 battery. Galaxy s5 battery is packed with 2800mAh.
Comparing to apple devices this is a lots.