The Samsung Galaxy S4 I9505 or the version with LTE and a Qualcomm Snapdragon 600 processor recently got a firmware update which has improved battery tests significantly. How significantly? Well, check out the test graphs below and see for yourself. The previous performance is marked in yellow:
Talktime Tests
Web Browsing
Video Playback
As you can see from the graphs above, the firmware update increases overall battery life except for web browsing. This could change with another firmware update so stay tuned for further developments.
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