Various features embedded in Samsung Galaxy S5 to add to the resale value. In addition to the already heralded as a fingerprint scanner or advanced camera, there is another interesting feature. 

The feature is the ultra power saving mode. As the name implies, this feature allows the battery to Galaxy S5 is much more durable. When enabled, the handset change color to black and white only, like old school phone. 

"Its main function to call and SMS. So if the battery is depleted, at least they can perform the essential functions," said Koen Phlegon, Product Marketing Manager Mobile Phone Business Samsung Indonesia. 

Besides calling and SMS, users still possible to access the internet and access multiple applications, but very limited. 

With such limited functionality, the Galaxy S5 also seemed to be transformed from a sophisticated smartphone into a feature phone. Battery endurance has increased significantly. 

In the experiment, when 72% battery remaining and ultra power saving mode is activated, the battery standby time is mentioned to be about 9 days.