Galaxy S8 and S8+ official battery life stats are in: a mixed bag compared to the S7 and S7 edge
As for the actual battery life out of those two puppies, well, the more frugal tech of the 2960 x 1440 pixels AMOLED display, and the new 10nm Exynos or Snapdragon chipsets have improved the official battery life numbers in comparison with the S7 and S7 edge, but only in certain categories like music playback. For video playback and Internet browsing, the numbers are pretty comparable, while the talk time endurance for the S8 and S8+ is slightly shorter than that of their predecessor:
| Samsung Galaxy S8 | Samsung Galaxy S7 | Samsung Galaxy S8+ | Samsung Galaxy S7 edge | |
| Battery capacity | 3,000 mAh | 3,000 mAh | 3,500 mAh | 3,600 mAh |
| Internet use 3G (hours) | 11 | 11 | 13 | 12 |
| Internet use LTE (hours) | 12 | 13 | 15 | 15 |
| Internet use Wi-Fi (hours) | 14 | 15 | 15 | 16 |
| Video (hours) | 16 | 15 | 18 | 18 |
| Audio (hours) | 67 | 45 | 78 | 55 |
| Talk time (hours) | 20 | 22 | 24 | 27 |
source: Samsung
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