Samsung Galaxy S4 Google Play Edition battery life tests are done, here are the results
Samsung Galaxy S4: battery life tips and tricks - YouTube
Samsung Galaxy S4 (I337) - Battery life - AT&T
litterally only 2 hours screen on time I'm on 40% battery with pretty much every app in deep sleep what is up with my battery (exynos galaxy s21) : r/GalaxyS21
How to extend battery life on a samsung galaxy s4 - YouTube