Samsung Galaxy S9/S9+ official battery life stats: Won't last much longer than the S8/S8+

Samsung Galaxy S9/S9+ official battery life stats: Won't last much longer than the S8/S8+
Wondering how long would the new Galaxy S9 and S9+ last on a full charge? Well, according to data coming straight from Samsung, they will't outlast their precursors - the Galaxy S8 and S8+ - in certain situations but not by much. This was logical to expect given that the new Galaxies pack battery units with the same size: a 3,000mAh battery for the smaller phone and a 3,500mAh one for the larger counterpart.

Of course, real-life test would be much more telling, but Samsung's official battery life stats tell a pretty telling tale that was, once again, expected.

Samsung Galaxy S9 vs Galaxy S8 battery life*

* - Based on official data from Samsung


As you can see, the biggest gains the Galaxy S9 scores are mostly in audio playback when the screen is completely disabled. Even with Always On Display enabled, though, the S9 would slightly outlast its predecessor. It doesn't seem to have a much bigger difference in the other usage scenarios Samsung has tested, with video playback and Internet usage being chief.

Samsung Galaxy S9+ vs Galaxy S8+ battery life*

* - Based on official data from Samsung


Generally the same conclusion can be drawn out of the battery life comparison between the Galaxy S9+ and the Galaxy S8+. The new phone also has the largest gains in terms of audio playback and wouldn't necessarily provide users with more battery life than its predecessor in terms of video playback or simple Internet browsing.

Samsung's website doesn't specify if the above results showcase the results scored by the Snapdragon 845 or the Exynos 9810 Galaxy S9/S9+ variants. Although these differ in a few key areas like clock speed, it's yet to be seen if there's a significant battery life discrepancy between Samsung's own and Qualcomm's chipsets. Judging by leaked synthetic benchmark results, the Exynos 9810 should theoretically provide a much snappier experience as it scores higher than the Snapdragon 845, but these claims are yet to be tested. Even Samsung specifies that the tests above are based on internal lab test condition and that 'actual battery life may vary depending on device model, usage pattern, other surrounding and environmental factors'.

Nevertheless, rest assured we will be testing out the battery endurance of the Galaxy S9 and S9+ as a part of our full review. Stay tuned and make sure to check out more of our Galaxy S9/S9+ coverage.

Related phones

Galaxy S9
  • Display 5.8" 1440 x 2960 pixels
  • Camera 12 MP / 8 MP front
  • Processor Qualcomm Snapdragon 845, Octa-core, 2800 MHz
  • Storage 256 GB + microSDXC
  • Battery 3000 mAh(31h talk time)
Galaxy S9+
  • Display 6.2" 1440 x 2960 pixels
  • Camera 12 MP / 8 MP front
  • Processor Qualcomm Snapdragon 845, Octa-core, 2800 MHz
  • Storage 256 GB + microSDXC
  • Battery 3500 mAh(35h talk time)

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48 Comments

2. bucknassty

Posts: 1318; Member since: Mar 24, 2017

when will samsung improve that crap vibration motor

13. toosmoove

Posts: 914; Member since: Sep 28, 2017

On what device? I can hear my my Note 8 vibrating from the other room all the time.

36. bucknassty

Posts: 1318; Member since: Mar 24, 2017

my s7 edge was weak... i always had missed calls... having to compare with my work iphone 7... man... ish was weak

4. cmdacos

Posts: 3969; Member since: Nov 01, 2016

Never had a concern on my s8 so even a small bump is welcome.

5. redmd

Posts: 1917; Member since: Oct 26, 2011

I always have a zerolemon on my side so no problem for my S8 +

7. Foxgabanna

Posts: 582; Member since: Sep 11, 2016

Lol I love how people try to justify a 2hr battery increase to spend $800-1000. If you have an S8, keep it. Same with iPhone 7 Plus to 8. Consumerism has y’all shook

12. AustinPaul

Posts: 152; Member since: Dec 13, 2011

Lots of people will be upgrading from S7 per 2-year cycle. Big upgrade there.

23. L0n3n1nja

Posts: 1526; Member since: Jul 12, 2016

As an S7 owner I don't see much of an upgrade here. Yes some things are better, but it doesn't really offer anything the S7 doesn't have. It's not like it has new features or offers a new way for me to use my device.

9. dreyfus

Posts: 22; Member since: Feb 24, 2015

But the Note8 has better battery life than rhe S8+...

15. dnomadic

Posts: 391; Member since: Feb 20, 2015

Nah... My Note did not compare to my S8 plus. Decent but definitely not S8 plus (mileage may vary I guess)

24. sachouba

Posts: 264; Member since: Jun 08, 2014

As always, I'm looking forward to seeing your battery life test results. The Galaxy S9+ might even get a lower result than the S9, judging from how accurate it is.

31. cmdacos

Posts: 3969; Member since: Nov 01, 2016

Lol, got that right... PA gets battery results that no other user gets out of real life usage.

43. Note8IsBoss

Posts: 15; Member since: Dec 17, 2017

When you have more than one handset this battery business doesn't matter. S9Plus will be joining my S8plus and Note8 at home base on March 16th that's all that matters.

* Some comments have been hidden, because they don't meet the discussions rules.

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