For more information, check out http://www.phonearena.com/news/Samsung-Galaxy-S5-Ultra-Power-Saving-Mode-explained_id53105

The Galaxy S5 is finally here, and we at PhoneArena have been spending some quality time with this bad boy. One of the cooler features that we've tried is the new Ultra Power Saving mode, which should reportedly deliver up to about 20 additional hours of stand-by time if you have just about 10% of your battery remaining! Sounds cool, right? Take a look at the video to see how it workd!