The Samsung Galaxy S7 has been part a lot of leaks and the frequency is increasing as we approach the announcement at MWC 2016 event. Earlier, a full fledged specs sheet showed remarkable increment in battery capacity (3000mAh) in the Galaxy S7 in comparison to the previous version, which was 2,550mAh. And now, a very knowledgeable source, Eldar Murtazin has bolstered this claim by confirming that the S7 is, indeed, quite durable.
We don't know how Mr. Murtazin accessed this information, but as per him the next Samsung flagship device can deliver over 17 hours of continuous video playback, at highest brightness.
There is a tiny disclaimer: this looks like 17 hours of video playback with Samsung's own methodology for testing smartphones. Previously the Galaxy S6 got the rating of 13 hours and the Galaxy Note 5 bagged 15 hours of video playback. Taking these into consideration, a claim of 17+ hours playback is not something out of the world, especially when the battery power has increased. Other elements like more efficient Super AMOLED display tech, home-grown Exynos 8000-series processor, improved RAM and further optimized TouchWiz under Android 6.0 Marshmallow have played their part in this.
This might sound quite authentic, but we must wait for sometime as the release in February at MWC 2016 is nearing.