Samsung Galaxy S6's battery life test score trails that of its predecessor


At 0.27 inches (6.8 mm), the Galaxy S6 is one of the thinnest mass-produced devices on the planet. But such remarkably slim profiles often require sacrifices on the hardware level, as there simply isn't enough space to fit everything. One component that requires quite a bit of room? The battery.

The Galaxy S6 sports a 2,550 mAh cell – a built-in one at that – and with that capacity it needs to keep a power-hungry, 1440 x 2560 Quad HD Super AMOLED display going for as long as possible. According to our custom battery life test that mimics the typical person's day-to-day usage, the S6's juicer manages 7 hours and 14 minutes before giving up, and then needs 78 minutes to charge from zero back to full – a good result, but not excellent.

Indeed, the Galaxy S6's predecessor, the Galaxy S5 (2,800 mAh), went through our stressing battery life test a year ago and scored slightly higher, at 7 hours and 38 minutes. Of course, it's quite obvious that Samsung has carried out a great deal of optimizations in terms of power efficiency, as the S6 is not far behind, despite its smaller battery and much more pixel-dense screen. Regardless, those among us that were more than content enough with a 1080 x 1920 resolution are probably a bit disappointed right now.

In any case, the Galaxy S6 proved to be a good enough performer, and is still ahead of the likes of the HTC One M9, the LG G3, and both the iPhone 6 and iPhone 6 Plus.

Battery life (hours) Higher is better
Samsung Galaxy S6 edge 8h 11 min (Average)
Motorola DROID Turbo 10h 42 min (Excellent)
Motorola Moto X (2014) 5h 45 min (Poor)
Samsung Galaxy S6 7h 14 min (Average)
HTC One M9 6h 25 min (Poor)
Sony Xperia Z3 9h 29 min (Good)
Apple iPhone 6 5h 22 min (Poor)
Apple iPhone 6 Plus 6h 32 min (Average)
Samsung Galaxy Note4 8h 43 min (Good)
Samsung Galaxy S5 7h 38 min (Average)
LG G3 6h 14 min (Poor)
Charging time (minutes) Lower is better
Samsung Galaxy S6 edge 83
Motorola DROID Turbo 126
Motorola Moto X (2014) 176
Samsung Galaxy S6 78
HTC One M9 106
Sony Xperia Z3 235
Apple iPhone 6 147
Apple iPhone 6 Plus 171
Samsung Galaxy Note4 95
Samsung Galaxy S5 122
LG G3 120

Related phones

Galaxy S6
  • Display 5.1 inches 2560 x 1440 pixels
  • Camera 16 MP (Single camera) 5 MP front
  • Hardware Samsung Exynos 7 Octa 3GB RAM
  • Storage 128GB, not expandable
  • Battery 2550 mAh
  • OS Android 7.0 Nougat Samsung TouchWiz UI

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