OnePlus 6T vs. Samsung Galaxy S9: Which is the best smartphone? – Comparative

With several months of presence on the market, the Samsung Galaxy S9 is no longer offered at the same price as its launch. From now on, it is positioned almost on the same tariff segment as the OnePlus 6T, it freshly released. Does the flagship of the Korean manufacturer still have the necessary arguments against the jewels of this end of the year? Using our detailed comparison, find out which one is the best smartphone.

With the OnePlus 6T, the Chinese manufacturer comes to improve an already excellent formula, always with a good quality / price ratio. On the market, we find a lot of competitors at the end of the year, but we notice especially the Samsung Galaxy S9 which is now available at lower cost than its release last March. Although it is part of the batch of the beginning of the year, the Korean smartphone is still a choice to seriously consider, even as 2019 approaches.



A question then arises as Christmas approaches: what is the best smartphone to have under the tree between a OnePlus 6T and a Samsung Galaxy S9? Design, performance, photo, autonomy … Discover our detailed comparison between the two smartphones!
Data sheets
                                    OnePlus 6T
                                        Samsung Galaxy S9
            Version of the OS
                            Android 9.0
                            Android 8.0
                            Samsung Experience
                Screen size
                            6.41 inches
                            5.8 inches
                            2340 x 1080 pixels
                            2960 x 1440 pixels
                Pixel density
                            402 dpi
                            570 dpi
                            Snapdragon 845 to 2.8GHz
                            Exynos 9810 at 2.7GHz
                Processor (CPU)
                Graphics Chip (GPU)
                            Adreno 630
                            Mali-G72 MP12
                RAM memory
                            6 GB
                Internal memory (flash)
                            128 GB, 256 GB
                            64 GB, 128 GB, 256 GB
                Camera (backpack)
                            1:16 Megapixel Sensor, Sensor 2: 20 Megapixel
                            12 megapixels
                Camera (front)
                            16 megapixels
                            8 megapixels
                Video recording
                            5.0 + ADP + aptX + LE
                            5.0 + A2DP + LE
                            LTE, HSPA, GSM
                            LTE, HSPA, GSM
                Supported bands
                            2100 MHz (B1), 800 MHz (B20), 1800 MHz (B3), 2600 MHz (B7), 700 MHz (B28)
                            2100 MHz (B1), 800 MHz (B20), 1800 MHz (B3), 2600 MHz (B7), 700 MHz (B28)
                            2x nano SIM
                            2x nano SIM
                Ports (Inputs / Outputs)
                            USB Type-C
                            USB Type-C
                            3700 mAh
                            3000 mAh
                            157.5 x 74.8 x 8.2 mm
                            147.7 x 68.7 x 8.5 mm
                            185 grams
                            163 grams
                            Black grey
                            White, Black, Gray, Purple
                            559 €
                            440 €
                        Product sheet
                                                    | Test
                        Product sheet
                                                    | Test
                                Design: with or without notch?
The OnePlus 6T design is pretty much a copy-and-paste of its excellent predecessor. In frontage, the screen always takes almost the entire surface with well-rounded edges and very thin borders. The only real difference comes from the size and shape of the notch, here in droplet to be less imposing. On the back, we find the same glossy or matte glass back, with a double photo sensor placed in the middle, on its upper part, but without the fingerprint sensor since the latter has now come to lodge under the screen.

On the side of Samsung, there is a very different design. Indeed, the resemblance to the Galaxy S8 is striking, the Korean manufacturer has not sprained at this level. However, it is an attractive recipe when far too many smartphones offer a notch in 2018. Compared to his challenger, he enjoys a smaller format that is pleasantly in hand and it is not completely borderless, but it offers pretty curved screen borders. We have often criticized the uselessness of the badly placed Bixby button, but note that this feature will soon be updated to speak and understand French. On the back, there is a beautiful glass cover where is placed in the middle: a square-shaped photo sensor, a flash and its heart rate sensor on the right.

Whether it's the OnePlus 6T or the Galaxy S9, they both have a convincing high-end design. It remains to know if we prefer a smartphone with a notch, or not.
Screen: Super AMOLED, the reference
The OnePlus 6T offers a 6.41-inch OLED display with a resolution of 2340 x 1080 pixels. It is a slab that offers strong contrasts with bright colors for perfect readability. In everyday life, it is a real delight to consult his favorite contents or to play video games. By default, note that colors tend to pull blue, but it is possible to calibrate according to tastes via the phone options.
In front, we have Samsung which is renowned for the quality of its screens, and the Galaxy S9 is still a reference at the end of the year 2018. The slab is less generous with a diagonal of 5.8 inches (6.2 inches for the S9 Plus), but this beautiful Super AMOLED screen offers him a Quad HD + definition of 2960 x 1440 pixels. The infinite contrast, combined with faithful and authentic colors, makes it an excellent screen. Everything is perfect and nothing is lacking, even today.
Although both smartphones offer a picture quality worthy of what is expected of a high-end, the Galaxy S9 screen still manages to stand out by establishing itself as a real reference.
Software: Oxygen OS with Android 9.0 Pie
After the transition from its predecessor to Android 9.0 Pie, the OnePlus 6T logically embeds this latest version of the Google OS. With the Oxygen OS interface, the user experience is very similar to smartphones from the Android One label, that is to say, refined and simplified. Nevertheless, the manufacturer still offers customization options such as the calibration of the screen, changing the home screen or the management of hidden applications. Finally, note that it is also possible to hide the notch with a black bar: an ideal tip for refractories.

As for the Galaxy S9, it runs on Android 8.1 Oreo with Samsung Experience 9.5 interface. The experience is the opposite of what Oxygen OS offers, the customization tools are many, if not too many, and can put off the most novice users. Nevertheless, we must take into account that the new interface UI One (based on Android 9.0 Pie) will be available from the beginning of the year 2019. It brings a redesigned interface with many features like the global dark mode, and well of other.

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In the current state of things, Oxygen OS with Android 9.0 Pie brings a better user experience, more intuitive and more immersive, than Android 8.1 Oreo with the Samsung Experience interface. A point to check when One UI will finally be available for flagship Korean manufacturer.
Performances: Snapdragon 845, nothing to say
As usual, OnePlus opts for the best-performing SoC Qualcomm house, so it's no surprise that we find the Snapdragon 845 combo with 6 GB of RAM (or 8 GB or 10 GB, depending on the model ). In these conditions, needless to say that everything is perfectly fluid, whatever your use. With the new Kirin 980, this remains one of the best configurations of the year 2018.
On the other side, there is inside the Samsung Galaxy S9 Exynos 9810 SoC clocked at 2.7 GHz with 4 GB of RAM (6 GB for the S9 Plus). A little lower than the S845, it still offers high performance that make him a high-end smartphone still highly recommendable. Whether at stake or browsing the Internet, the user experience is very fluid everyday.
Samsung Galaxy S9OnePlus 6T
SoCExynos 9810Snapdragon 845
AnTuTu 7.x242 627297 132
The difference in performance between the OnePlus 6T and the Samsung Galaxy S9 is only very finely perceptible to a user, but on paper, the Snapdragon outweighs the Exynos.
Photo: Samsung imposes its know-how
With the OnePlus 6, many pointed to its disappointing photo part that finally explained its value for money. Since the release of the OnePlus 6T, this is no longer a truth thanks to the many software optimizations (which also benefited the predecessor). Its dual 16 + 20 megapixel photo sensor is now able to produce even better shots, even in low-light situations.
For selfies, the OnePlus 6T uses a 16 megapixel camera with an aperture of f / 2.0. He is doing very well by even managing to maintain a good exposure, provided to have a good brightness. However, the portrait mode is a bit more disappointing.

The Samsung Galaxy S9 comes with a 12 megapixel sensor, where it is associated with a lens whose diaphragm opens physically at f / 1.5 or f / 2.4. The photos are always excellent, regardless of the conditions where it can be put to the test. Although it does not take advantage of the software enhancements in Note 9, the Korean smartphone has the merit of being always a reference at the end of the year 2018. The results are even better with the S9 Plus and its dual module sensor.
On the front, we find the same 8-megapixel Dual Pixel photo sensor on the S8, but this time with an autofocus that makes the difference. It ensures a good quality with a lot of features to embellish your selfies.

Although OnePlus has done a lot of effort, the photo is not known to be one of its best assets. The result is very good, even bluffing, but it must be said that Samsung still masters its subject as well.
Drums: OnePlus, the best student
OnePlus is the manufacturer that offers the most enduring smartphones on the market. With its 3700 mAh battery, the OnePlus 6T does not have to blush and offers one of the best autonomies of the end of 2018. With Oxygen OS and many software optimizations that save energy it can last almost 48 hours, two days of use. It does not take advantage of the wireless charging system as its challenger the Galaxy S9, but its fast charging system is particularly effective: a full charge takes about an hour.

On the other hand, Samsung has only rarely been praised for the endurance of its products. With a battery of 3000 mAh for the S9 and 3500 mAh for the S9 Plus, as well as Quad HD + screens too greedy, neither version can claim to compete with the endurance of the OnePlus 6T. It is usually quite difficult to keep a full day despite a traditional and moderate use of the phone. As for the fast charging system, it will take about an hour and a half to go from 0% to 100%, which is quite appropriate.
On our ViSer test, the OnePlus 6T held for 10 hours and 33 minutes while the Galaxy S9 held just 8 hours.
Conclusion: which is the best smartphone?
Samsung can be seen as a reference on some points (like the screen or the photo), but today the competition is better, or even at a level almost identical. The OnePlus 6T is an excellent smartphone that offers a complete solution with a beautiful OLED screen, top performance, a good photo and a range worthy of the name: and that's exactly what you expect from a high smartphone range in 2018.
Although we can take small defects such as non-compatibility of the wireless charge of the OnePlus 6T, we can less accept the poor autonomy of the Galaxy S9. If you really want a smartphone of the Samsung brand, it is better to be patient and wait for the S10 in early 2019. If you are looking for a phone "small" format, the Galaxy S9 draws against his Pin.
Price and availability
Sold at a high price of 859 euros when it was released, the Samsung Galaxy S9 is now available at less than 600 euros, depending on the reseller.
Where to buy the Samsung Galaxy S9 at the best price?
More recently, the OnePlus 6T is available from 559 euros.
Where to buy the OnePlus 6T at the best price?


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