It seems at this point is rather difficult to believe there is a smartphone that is able to offer a battery life for a few days, even up to one week. But believe it or not, at this time the Samsung Galaxy S5 probably is the only smartphone that is able to offer a battery life for a few days.

As you know, the Samsung Galaxy S5 features the Ultra Power Saving Mode. Features Ultra Power Saving Mode is one of the flagship Galaxy S5 features to improve battery life. To prove how long the battery life of the Galaxy S5 can take place by activating Ultra Power Saving Mode, recently Samsung Mobile USA has done a test.

Based on testing, the Galaxy S5 battery life can last for 7 days without charging with Ultra Power Saving Mode is active. When activating Ultra Power Saving Mode means you are willing to change the look of the Galaxy S5 into greyscale screen, including disabling WiFi, Bluetooth and various applications but still allowing service messages, calls, video recording and browsing.

During the 7 day trial, the Samsung Galaxy S5 in Ultra Power Saving Mode is used to send the message as much as 86 times, 119 times as much as taking photos, recording video for 4 minutes and used to call for 16 minutes.