Skip to content

Galaxy S9 vs S8. What improvements are there? Which is better?

Galaxy S9 vs S8

Galaxy S9 vs S9: Comparison

I have been using the S9 (plus model) for a couple of weeks as my primary phone. Since then, he has accompanied me on a trip to So Paulo (for the Nissan Futures event), to a couple of Bike Sundays, and I've had it long enough to make a comparison to two of the phones I used the most last year. So, today we have the Galaxy S9 vs S8 (and Note 8). What improvements do we have? Which is worth more?

Galaxy S9 vs S8: Design

In design, the S9 + does not bring with it revolutionary changes. Samsung has been on a streak for 3 yearsYes, when I debuted with the beautiful S6, a team that replaced the ugly utilitarian S5 (the popular band-aid or Band-Aid) with a phone that showed us that Samsung could also have attractive phones. Then the S7 and S7 Edge pushed the design of these smartphones even further by giving us a curved screen that gave us the illusion that the side edges of the screen disappeared. And the S8 did something that few of us expected: it made us turn to the S7 and S7, thrown a year ago, nothing more, like outdated phones. Removing the button and giving us a huge screen on the front, with improvements in ergonomics and finish, the S8 was, in my opinion, the most attractive phone of 2017.

So it doesn't bother me much that the S9 hasn't brought any major changes. The S9 maintains the aesthetics and dimensions of the S8, including the screen size. However, the S9 and S9 both bring welcome enhancements, such as the inclusion of stereo speakers. . One of the complaints with previous models, was that Samsung kept a weak speaker at the bottom. With such a beautiful screen, many of us chose to watch series and movies on the phone. But the poor sound emanating from a single speaker, in part, killed the experience. Now with the S9 and S9 + we have a much more immersive experience, thanks to an additional speaker on top that greatly improves the sound. Now we have more volume, and better sound in general


On the screen there are not many important changes. The same WQHD + resolution is maintained with an 18.5: 9 format (although by default, the phone operates in Full HD instead of QHD). Where we do have improvements is in the curvature of the screen; the phone was less curved on the sides than the S8, but even more curved than the Note 8. Also, this screen manages to be 20% brighter It not only helps to use it during the day, but also when we are watching videos in HDR, where the maximum brightness is easier to appreciate.


This is where I noticed a substantial jump in front of the S8, but not a very big one in front of the Note 8. The S9 and S9 + bring with them the new Exynos 9810 processor that improves the processing power and also the autonomy. Never found lag on the computer; This always worked without losing frames when navigating the interface, and all the games I tried, even quite heavy ones like Final Fantasy XV Mobile, ran without problems.

However, in addition to the Galaxy S9 vs S8, the Note 8 also offers similar performance, and this one has the same processor as the S8, so the slowness it experienced with the S8 is due, in my opinion, to the Android version. that this has. The S8 had version 7.0.0 which had some performance issues. The Note 8, on the other hand, came with Android 7.1 and Samsung Experience 8.5 that noticeably improved the experience. It should also be noted that both computers come with 2 extra GBs of RAM (6 GBs in total) that also influence, but not as much as the version of Android with which they come.

Galaxy S9 vs S8: Cameras

It is on camera where the S9 and S9 + really stand out. Samsung has made great improvements with the sensor of the S9, to such an extent that the night photos that we can get with this camera are far superior to the also excellent S8. The S9 manages to get very low noise and very sharp images even in extremely adverse conditionss. This is achieved thanks to the fact that, under certain conditions, the S9 takes 12 photos and joins them into one, normalizing (removing) the noise of the image.

Variable aperture also helps a lot to get better daytime photos, capturing more detail in the images. Many reviewers with little knowledge of photography have started comparing only the bokeh or unfocused background with the f / 1.5 and f / 2.4 aperture. This is a totally unnecessary and silly test, Well, the difference in bokeh is practically nil, even when we take a similar photograph with a lens with f / 1.6 or f / 2.4 aperture. It is the wrong test to perform. Instead, we have to do the test for which the variable aperture has been created, and that is to get more detail in day images.

A brief review of photography: When we are looking to have the maximum photographic aperture (like f / 1.5) to get sharp night photos, the side effect is that the images may end up looking a little soft, with a loss of detail. As photographers with a DSLR, what we do in those cases is to use that f / 1.4 or f / 1.8 lens, but with an aperture of f / 2.8 or f / 4 to maximize the sharpness or sharpness of the lens. And of course, we use it at f / 1.8 when we want to let more light in. This is what variable aperture really offers: the ability to use f / 1.5 in low light (at night) situations, but to use f / 2.4 – which will give us more detail, sharper photos – by day. The difference is not huge because, after all, going from f / 1.5 to f / 2.4 is not a very big jump, but this opens the doors that in future generations we will see a more dramatic change (af / 4, for example), but it is remarkable when we see the photos side by side. Remember, it's not about how much difference there is in the bokehAs many reviewers have tried to verify, but on the level of sharpness in complex textures. And here it is remarkable.

See also

Of course, we also have the whole 4K video theme at 60 frames per second, support for the HEVC video format, and also Super Slow Motion, but these are details that we will leave for the final review.

Galaxy S9 vs S8: Battery

This is where, unfortunately, we see no improvement from Samsung. We have improvements everywhere but in terms of autonomy, Samsung has not made any progress. In fact, comparing the S9 + against the S8 +, we see a reduction of 100 milli-amps in the battery (3,500 mAh in the S9 +, versus 3,600 mAh in the S8 +). This is offset by a more efficient and lower-power processor, but at the end of the day, the average battery life with the S9 + has been pretty much the same as it was with the Note 8 / S8 + – just enough to get to the end of the day. hits 20%.

I hope Samsung presents improvements in this regard for the Note 9 or S10, as competitors such as Huawei are offering a better experience in autonomy issues. And with how much we use our phones today, the longer they last, the better.


Do they have an S8 +? Unless you're a photography lover, or use your smartphones to consistently produce video – and need 4K at 60 frames per second – then there isn't much reason to upgrade to the S9 +.. The S8 + is still an excellent phone that offers perhaps 80% of what the S9 + has.

Yes, However, they are coming from an S7 Edge, S7, or some phones launched in 2017 like the LG G6 or HTC U11, so the S9 + is definitely a phone to consider, far superior to these,and above S8 +. The camera, the superior screen, the best multi-media experience that the phone offers thanks to the stereo speakers, make it a phone that almost almost has no fault.