Samsung Galaxy S9 with Exynos chip has surprisingly bad battery life, here is why

The Samsung Galaxy S9 battery life is... well, not great. But it seems that not all Galaxy S9 phones have the same battery life and an interesting investigation reveals what could be causing those battery issues...
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50. yalokiy

Posts: 997; Member since: Aug 01, 2016

Not agreeing, but at least I understood your point. I think we need to use another term when we mean both design and manufacturing. Otherwise it's confusing, because one may think Apple and Qualcomm are manufacturing their own chips, since design is part of manufacturing process or that Samsung is doing design for Qualcomm, since they do the manufacturing for them.

52. Ellio74

Posts: 74; Member since: Mar 22, 2018

I understood yours too. That one is tough though! Lol

62. Marcwand3l

Posts: 432; Member since: May 08, 2017

Exactly. Chip design is done in harmony with the process manufacturing. I mean the initial details of the design maybe are independent form the manufacturing process but in order to have a successful tape out you absolutely need to take in consideration the limits and characteristics of the manufacturing process. Like I've said previously. Apple could not have designed the A11 on a 20nm or 28nm process, it would have been impossible.

65. Trex95

Posts: 2381; Member since: Mar 03, 2013

Exyonse designed by ARM not Samsung.

71. Ellio74

Posts: 74; Member since: Mar 22, 2018

The part that we're talking about is not, it's Samsung custom cores (M3). The other 4 cores are from ARM (A55).

9. WPX00

Posts: 511; Member since: Aug 15, 2015

The E9810 seems fated to go down alongside the E5410 as one of the worse chips Samsung's made. Confirms that I won't go with an S9 this year.

26. TechSceptic

Posts: 1156; Member since: Feb 05, 2018

It's really saddening, and i wouldn't say it is as bad as the E5410, as it does have fantastic performance, once the big cores are running at full speed, but it definitely is a dissapointing SoC, when it comes to efficiency, which is kind of dissapointing as a european consumer.

35. Arch_Fiend

Posts: 3951; Member since: Oct 03, 2015

Samsung use to have such good SOCs, ever since 2015 they have fallen off.

48. yalokiy

Posts: 997; Member since: Aug 01, 2016

Only the one that doesn't do anything, doesn't ever make mistakes. Secondly, why did gsmarena web browsing battery test of S9 exynos version get over 10 hours ? Perhaps anandtech received a faulty unit for review?

74. Ellio74

Posts: 74; Member since: Mar 22, 2018

A lot of people are talking about poor battery life, did they receive a defective unit?

57. M.O.A.B

Posts: 319; Member since: Feb 13, 2015

you clearly don't have a clue about tech, the SoC is very powerful and clocked at a high frequency which resulted in the battery performance you are seeing. samsung phones are of the highest quality in the market right know, this is a fact not an opinion. Also, this and the battery incident are not related in any mean, how on earth does manufacturing a powerful SoC is a proof of low poor quality? do you even know what it takes to produce even a working SoC? just a SoC that works ? you should stop snorting cocaine before commenting here boi, i feel sorry for the 14 idiots who upvoted you :|

73. Ellio74

Posts: 74; Member since: Mar 22, 2018

Good joke, like it! The SOC is powerful, but to the point of not being battery friendly. But if you compare it to others SOCs, you'll notice that it's not the best. And I'm pretty sure you know SOC is not only about power... Samsung phones are quality wise, as good as the others, certainly not the best. Some screens don't respond to touch already on the S9s, that is a fact! This incidents aren't related, I've never said they are. But coming from Samsung, I'm not surprised, they've had issues here and there. It seems like they are about quantity but not much quality. And to your information, talking condescendingly and insulting people doesn't make you cleverer or what you're saying better!


Posts: 130; Member since: May 08, 2015

Lol, out of the millions of devicessold, a few have had screen issues? That's not even worth mentioning! Shall we have a look at your so called 'others'? Apple always has multiple issues upon release of a new phone, so does Google, Sony, Huawei, etc.

87. Ellio74

Posts: 74; Member since: Mar 22, 2018

It also started that way before the Note 7 worlwide recall... I'll talk about other bugs or problem: -S8 messaging bug -S8 randomly turning on its display (that I called the Sometimes On Display) -S8 autofocus problem (you had to shake the phone to make it work according to Samsung) -Note 7 (and some S7) exploding -S7 lens cracking -S7 defective screen (purple band along the display) -S7 Active defective waterproofing -Note 5 "stuckable" stylus. Is that enough? I never said Apple (or Google) was better, but I don't hear/read so much stories about Sony, HTC, Huawei...

68. Trex95

Posts: 2381; Member since: Mar 03, 2013

Don’t blame Samsung only blame Android Oreo.

75. Ellio74

Posts: 74; Member since: Mar 22, 2018

Oreo is fine on other devices

79. irfanil

Posts: 33; Member since: Mar 14, 2013

Your comment is very clear that you are talking about Exynos SOCs only by saying "with their SOCs". Samsung also make display for iPhone yet S9 units have display issues.

81. w1000i

Posts: 247; Member since: Jul 22, 2015

it is simple samsung not the most efficient ( good but not the best ) SD845 is more mature and efficient

88. GalaxyLeads_iCrapFollows

Posts: 216; Member since: Nov 29, 2017

Ellio74 that's BS. Without Samsung there will be no Iphone. Iphone relies on Samsung for all of their quality parts

89. Ellio74

Posts: 74; Member since: Mar 22, 2018

Sony is the camera supplier, TSMC is in charge of the A11 bionic, those are quality parts. But that's not the main concern here...

2. Cat97

Posts: 1891; Member since: Mar 02, 2017

I think there is really no reason to buy the S9, except for its unique and very important ability to measure blood pressure. For all the other features you can find a better deal elsewhere (or even for Samsung's own S8).

17. dynamite

Posts: 12; Member since: Jan 16, 2018

It is a good all around phone who has 3-5 years phones. Nowadays it is silly to change a phone every year unless you have a lot a money and want to show it to other people, that you rich. :)

4. haikallp

Posts: 319; Member since: Feb 10, 2012

Yeah. I'm using the S9 with the Exynos processor. Battery life has been meh. Just a tad better than my 20 mths old Galaxy S7. Can't last a full day with my usage. Expected a better batt life tbh.

38. maherk

Posts: 6876; Member since: Feb 10, 2012

Same here. The S8 had a good battery life and I was expecting the S9 to have an at least very good battery life. But no matter what I do, and even though I don't play games on my phone, I am having an okay battery life at best. I never used my car's charger when I had the S8+, Essential Phone, and Note 8, but now I am always plugging my phone whenever I am driving.


Posts: 130; Member since: May 08, 2015

Should have gotten the S9+, brilliant battery life. No complaints

5. torr310

Posts: 1659; Member since: Oct 27, 2011

Expecting more discounts for the S9! S5 is a good upgrade S6 is not S7 is a good upgrade if coming from S6 S8 has much better SD cpu but similar battery life compared to S7 plus bad FPS design. S9 is not a good upgrade


Posts: 130; Member since: May 08, 2015

You forget one more: S9+ Which is a good upgrade

7. Humanoid

Posts: 1226; Member since: Dec 11, 2017

No surprise... Exynos of Galaxy S /Note usually has lower clock compared to its SD similar. Last year we had 2.45GHz x 2.35GHz. And 1.85 x 1.75. This 0.1 many times daily makes difference. This year Exynos has higher clock than S845

11. Cat97

Posts: 1891; Member since: Mar 02, 2017

No surprise ? The Exynos used to be much better at battery life than the Snapdragon until this year.

21. Humanoid

Posts: 1226; Member since: Dec 11, 2017

Exactly what I say. Due to lower clock compared to SD. This year Exynos has higher clocknthan SD, worse battery

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