I decided to make the change after 3 years of using the iPhone 6 Plus. I can say that I didn't miss at all the crashes and random malfunctions of Android applications. The cache issue, well, it has become ridiculous. I hadn't cleared it from safe mode for 6 months and it freed up 4 gigabytes. Also, looking at the photos I took when I got it, I noticed a huge deterioration in the camera quality. The climax? One morning, a burnt pixel appeared on the side of the screen, forming a small circle and a line going through it, under which the screen trembles. As for the battery, what can I say... honestly, I charge it three times a day (I am very obsessive about charging and I let it reach 99.99% full, usage is not responsible for the wear). Is this your flagship Samsung? I have put it aside and I am using my old iPhone until I get another one.
Edit: The screen eventually burned on its own and was replaced under warranty.
Also, many people claim that the applications are to blame for the crashes, etc. Besides the fact that on my iPhone the same applications have no issues, it's not so much about what is to blame but the unpleasant user experience from the spaghetti code of Android. Why would you get a phone if the applications you use don't work properly?

Excellent quality device. I have been using the s9 for quite some time now, and it has not disappointed me. Excellent photo-video, beautiful and accurate colors, and the super amoled screen is delightful. The 4gb ram seemed too little to me, however, the phone for some reason does not freeze anywhere so far. Positive features include the microSD slot and audio jack port (which are now missing from most phones). The overall design of the phone is very beautiful, slim, minimalist, and at the same time very sturdy. The ip68 certification is important, however, I have not submerged it in water to confirm it. Unfortunately, the phone has one negative characteristic, and that is the battery. With typical use, you will definitely have to charge it twice a day. You can increase the battery life if you lower the screen resolution, disable always on and edge notifications, however, I believe you don't buy the s9 to make such compromises. Battery management needs to be improved through an upgrade. The oneUI it wears is free from unnecessary applications, however, the settings menu still confuses me. Fortunately, there is a search function for whatever you need. Overall, the phone gives you the flexibility to tailor it to your needs, and once you get used to it, everything will seem easy. Among its features, the optical image stabilization in the camera and the wireless charging on the back of the device stand out. In general, it is a good choice for the money, although I think the price could be lower.

I had several mobile phones, which I do not need to mention as it is not relevant in this case. I decided to buy the S9 after the "good reviews" I saw, like most people. The mobile phone is unacceptable. Within six months, it presented quite a few reliability issues. The screen had Burn in. In short, it simply "burned". It created a ghost image in the background. The reason it created it is simply because it could not keep the apps active in the background. When you locked the screen to protect it, they stopped working. In other words, you couldn't listen to music via bluetooth if the app was not permanently active on the screen. The Burn in did not take long to appear. As if that was not enough, after a short time of these problems appearing, it stopped receiving most calls. It seemed like I had permanently turned off the phone. I rarely received calls. Usually, I saw the messages that came in a heap from missed calls and then I called the received numbers. I did a factory reset of the settings twice in total. None of the aforementioned problems were solved. I then contacted the company and they told me that "unfortunately at least the screen cannot be repaired, you need to send us the phone". As if I have a store of mobile phones at home to choose another one to do my job while they in the service department checked the phone. I borrowed a phone from a friend and today I sent the S9 for service. I do not want to see it again in front of me.

Well, let me write a few words about this phone. Former owner of honor 8. The phone has incredible build quality. Incredible screen and overall it is premium. The video, guys, is magic especially with sunlight in 4k 60fps, you feel like a Hollywood cameraman. The photos are top-notch day and night. Samsung did a great job with the software. The sound... guys...!!!! Dolby Atmos does the job... and overall it doesn't lack anything. Except for a gesture that I had on honor that it doesn't have (or I haven't found it yet..!!) when you tap the phone to pick it up by putting it to your ear.

edit 11/2/2019

I'm coming back, guys. After an upgrade with some patches to Android Pie, the phone has eliminated all the small bugs it had and it doesn't throw any ads or banners, not even for fun. Very, very stable use, the battery improved, the signal and the quality improved, the UI One is very good and finally the camera, especially the video, reached the level of a mirrorless full-frame camera. We're talking about a bitrate for those who know, at 4k 80mbps!!

Oh, and no burn-ins!!!

After hearing what I hear about mate 20 pro, v30+ g7, etc. I just laugh... Bravo to Samsung, I believe it is the best phone that exists in Android at the moment and for this price, it's a steal.

That's it. For anything new, I will come back with a new edit.

I have had the phone since September 2018. It has not presented any problems to me. Generally, Samsung does what it promises, especially in its expensive series. The phone is a multitool and never lags. Where I believe it could use some improvement is the camera. If you compare it to the photos taken by the iPhone XS, it falls behind. Especially in cases where the focus needs to be done correctly and quickly, the iPhone is better. In terms of photo quality, they are approximately equal. When using manual focus, there is no problem. Also, the iPhone is faster in camera response (faster app startup and faster photo capture). Of course, the iPhone XS costs twice as much and is more modern. I hope the S10 will be significantly better in camera and speed of capture. Let's not forget that the S series uses the same sensor as the distant S7, and the only thing that changes every year is the algorithm. Another issue of secondary importance, but it exists, is the use of AI in photo capture. Sometimes the photos look fake, especially when HDR is used. I believe this will be corrected over time as AI evolves.
Finally, the battery could definitely be much better. The one star I deduct is solely for the battery, as with average use, the phone struggles to last 12 hours. After 1 year of use, the battery dies at 10%.

I have owned the phone for 10 months and I believe I have completed my opinion on the phone. Initially, it is a beautiful phone in its appearance and with smaller bezels than its predecessor s8. Its camera is very beautiful and during the day as well as at night the rear camera takes very nice photos, however the front camera takes nice selfies in the morning but at night the quality is very bad as it seems like it's just pixels. On the battery issue, there has been no progress and I am disappointed as the 3000mah cannot keep the phone on for a long time as its screen consumes a lot of energy. Also, the ram memory it has (4gb) I consider it not enough as the system without any open applications etc. uses 2.4gb of space and then there is not much left for the user, resulting in quite a few lags. Overall, this phone with the features it has should cost at most up to 350€ approximately because for most users it does not cover certain things.

Update 8/3/2021
Having the phone for almost 2 and a half years, I can have a more complete opinion. Firstly, the battery life has dropped significantly, resulting in me charging it 2 to 3 times (as if I had an iPhone) and this is the only drawback along with the fact that it heats up a lot. In general, however, no matter how many falls it has taken, I can say that it still remains in good condition and has not broken any glass (I should note that I do not use a case). That's all from me, I hope to help with my review

Former owner of the Samsung Galaxy S6 edge and HTC One M8, I have to say that the Samsung Galaxy S9 is a very good, balanced phone with almost zero issues. The calls are of very high quality. I liked the screen, very good and bright, although the S6 edge seemed cleaner to me because it had a smaller screen, therefore more pixels per inch (ppi for those who know), but the S9 definitely has a brighter and larger screen. I also missed the dual speakers from the HTC One M8, so I'm glad to have them again with the S9. The headphones that come with the phone are also very good, I think they are the best free headphones available. The speed is quite good, it can handle games at the highest FPS and resolution without any lag or frame drops. The camera is very good, especially during the day and in the evening, but it also takes very good low-light photos, even without a night mode. The video quality is also very good. The build quality is also very good, for me it is the most beautiful phone of 2018 in Black color. Also, its software (currently Android 9 One UI) is the best software Samsung has ever put on its phones, as the old ones were very bad. I'm glad that Samsung is starting to improve its software. Things I don't like: The battery is mediocre. I had the S6 edge which had a very bad 2600mAh battery, so when I got the S9 with 3000mAh, I hoped things would change, but not much has changed. The larger screen at 1440p and the higher core power make the battery weak. The software's battery management is very good and saves it a bit, but not as much as I would like. The last Samsung phone with a good battery was the S7 edge. I would also like better video stabilization (optical image stabilization). I would also like the phone's corners to be straight instead of curved, at 90 degrees, I want those extra pixels. Don't call me obsessive, but curved corners make the screen feel marginalized. I would like a slightly faster charging time. It's 2018 and the phone still takes 1 hour and 40+ minutes to charge from 0% to 100% and 55+ minutes to charge from 50% to 100%. Finally, it annoys me that when you record video or take photos in 16:9 (to fill the screen), the resolution drops or you lose stabilization. When you record video at a higher resolution, you lose stabilization, track focus, and other features. This "if you want something more, you will lose something else" needs to stop with Samsung. I want track focus and OIS whether I'm shooting in 1080p, 1440p, 4:3, or 16:9!!! I give it 4 stars mainly for the mediocre battery, but also for the other issues I mentioned. UPDATE: After a year of use, a burn-in appeared on the screen. It's not very noticeable, I only see it on white images, but it could have been much worse. So I would advise you to be careful because from what I've seen, others have the same issue with their screens, and even worse than mine. Nevertheless, it remains a good phone. It now runs Android 10, which initially had some glitches, but with new updates, it's fine. Advice: If you're going to buy any Samsung flagship released after 2017, it's better to get it with a Snapdragon processor instead of the Exynos they sell in Greece and Europe. Snapdragon is faster, manages battery better, and heats up less, resulting in no thermothrottling, meaning the phone does not freeze when it heats up.
UPDATE 2.0: after 1 year and 2 months, my phone has shown BURN IN on the screen in many areas, the same problem that the S8, NOTE 8, and NOTE 9 have. I do not know if SAMSUNG has fixed this issue in its new phones, but it is a major drawback for a flagship. SAMSUNG says that BURN IN on the screen is due to not changing the screen content for more than 2 hours, resulting in the "burning" of pixels. For example, I have BURN IN from YOUTUBE and TIKTOK, as well as from the NAVIGATION BAR that is constantly on. For those who do not know what BURN IN is, I would recommend doing a quick search because it will play a crucial role in acquiring this device as it is a poorly made screen that cannot be fixed with software but only with screen replacement, which costs money

Owner of the mobile phone for about two months and I can say that I am impressed. An initial observation is that the phone, although gorilla glass 5, scratches mainly on the back glass. For the price of 420€, it is a mobile phone with an impressive screen, amazing stereo speakers that, combined with the Dolby Atmos of One Ui, provide a unique viewing experience. As for the processor, it has not disappointed me, yes, it does have a few glitches, but I believe they are not bothersome. Most are software bugs that I hope will be fixed soon. Regarding gaming, it runs asphalt 9 flawlessly, as well as having a decent performance in Fortnite, although I downloaded it just to test it as I am not a fan. The battery is a problem for users like me who want to have full resolution and brightness, but the times I have tried to lower the resolution to FHD+ and the brightness to half, the battery easily lasts a day. The easy solution is the power modes that the software has, which indeed significantly increase battery life. Finally, I would like to point out that this phone is my first with fast charging and perhaps it is the only feature that at least for me covers the gap left by the battery. In about an hour, it is charged to 15%. I tried to be as objective as possible because Skroutz lacks similar reviews. Please note that my evaluation is based on my usage (average usage of a 17-year-old)!

Update: Owner of the mobile phone for almost a year now, I can say that it was an excellent choice! The speed has remained unchanged, while the camera, for the small role I want it for, is fine, although now a bit behind today's standards! The battery, although still average, has somewhat improved with software updates, of course, there is always fast charging that saves the situation. I have noticed a slight decrease in brightness, however, it is normal for an OLED panel. Finally, the glass both front and back now has several scratches, something that would not be a problem if I had a protective glass (I should note that the phone has not broken even though it has fallen a few times, fortunately, so I consider that the IP68 rating for water and dust protection still applies. I use the phone daily with the Samsung protective standing cover as a case).

Hello. I have had this particular mobile phone since Christmas 2018. I have it in gold color and so far I am impressed.
1. Amazing design, good grip, it doesn't slip for me (it depends on the person, in case it slips), and because I don't like the case (yes, I know it's dangerous), because it hides the beauty and it doesn't have any scratches due to Gorilla. But in terms of dropping, you have to be careful. 10/10
2. The screen, also amazing with perfect resolution, brightness, deep blacks, no bezels, in other words, Samsung is top in screens. With HDR support, Netflix gives a different feeling. I also liked the 3D Touch feature for the Home Button. Finally, the curved theme is nice. 10/10
3. Speed, very fast, no lag at all. I would like more RAM, while the storage is satisfactory. I don't have an opinion on overheating because summer hasn't come yet for me to see (since I got it in winter). But I'm playing games now and it's cool. 9/10
4. Cameras, first, I don't use the selfie camera much, but it's fine with focus. The rear camera impresses at night, as well as in videos. Finally, the slow motion is impressive, as well as the fast focus, stabilization, and colors. I won't say much because it has been said a lot here, which I agree with and I don't want to bore you. 10/10
5. Battery, satisfactory, lasts me a day, I have 6 hours of screen-on time after customization. Charging is both fast and wireless. 9/10
6. Miscellaneous, stereo sound, impressive with AKG and Dolby Atmos. Bravo for the headphone jack, which together with the included AKG headphones, works wonders. The fingerprint sensor is satisfactory, but a bit slow compared to other phones, but I don't use it because I have iris recognition for security, which is very convenient and relatively fast. Finally, I have tested it in water and it reacted normally. 10/10
7. Connectivity, no problems with Wi-Fi 5GHz, Bluetooth 5, GPS, NFC, and mobile signal in 4G+ is great. 10/10
8. Software, luckily as soon as I opened it from the box, I received an update to Pie 9, therefore Samsung's One UI 1.0, and I was impressed. Very fast, with effects, new features, and I can use the phone with one hand. It is still very smooth and even today I have no issues at all!! 10/10
9. Conclusion, even the box is impressive and organized, I like that it includes adapters. Is it worth it? With this money, now Yes, definitely. The S10 is good, but expensive. I would choose the S9 again, it left me with the best impressions. (Overall rating: 9.75/10)
Thank you for your time, I hope I didn't bore you and that I helped you.

I am the owner of this phone for 6 months. It is the best mobile phone I have ever had, but something quite unusual happened to me. The phone received a security update in early June, and since then it has not received any updates (so I did not know that there were updates that I did not receive).

So we come to January when Samsung started offering One UI (also known as Android 9/Pie), which I never received, I always saw that my device was "up to date" (last update June 1).

I, in turn, used the "Samsung Members" application to send feedback to support regarding the delay in the update.

Every time the response I received was that "The distribution of updates started on 16/1/19 and depends on many factors such as IMEI, country of origin, etc. Try the SmartSwitch application for computers"... and SmartSwitch did not recognize my device.

On 20/2/19 my patience ran out and after giving 1 star several times to the same response I received from Samsung's technical support every time, and after all my friends and acquaintances had received the update, I began to suspect that something was wrong.

After several hours of research, I found a Build Number of the software installed on my phone (G960FXXS1BRF3). Searching a bit on XDA and SAMMOBILE, for this specific Build no new upgrade had been released. So, I had to install the upgrade myself via Odin. (And everything went well thankfully!)

In conclusion, this was a big foul for Samsung. I may have been an isolated case, but for a premium phone such a problem is unacceptable. I happened to be a computer science student and know how to install the upgrade manually, but how much more should a person who is not an expert be bothered?

Sorry Samsung, but I will think twice next time I want to buy one of your devices.