Samsung Galaxy S8: waterproof, shockproof and scratchproof - professional tests. Everything is IP67 and IP68: the best waterproof and waterproof smartphones Disadvantages of water protection on the Galaxy S8

As promised earlier, a presentation of new flagship-level Samsung smartphones took place today in New York: Galaxy S8 And Galaxy S8+. What did one of the world's leading manufacturers of devices of this type decide to surprise us with this time?

First of all, I would like to note that Samsung flagships, in addition to the expectedly powerful filling, according to the latest fashion, received displays that occupy almost the entire area of ​​​​their front panel, on which, because of this, there is no room left for a fingerprint scanner.

Whether this is good or bad, only time will tell, but the location of the fingerprint scanner next to the main camera lens on the rear panel of the case seems to me not rational, since in this case the lens will be constantly dirty with these same fingerprints.

But the “Home” button on the front panel of smartphones has not gone away: now it is built into the display and when you press it, you will experience the same sensations as when you press a mechanical button.

As for the main camera of the smartphone, this time it is based on a 12-megapixel sensor with a size of 1/2.5 inches and boasts phase and laser autofocus, a fast lens with an f/1.7 aperture, support for HDR shooting mode and 4K video with speed of 30 frames per second.

The front selfie camera of the smartphones has an 8-megapixel sensor and an f/1.7 aperture lens.

It should be noted that Samsung flagships have always had good cameras, capable of taking high-quality pictures in low light conditions, and apparently this time the Koreans did not lose face with the lens. By the way, about the face.

Display and front panel

This time we are offered smartphones equipped with 5.8-inch (Galaxy S8) and 6.2-inch (Galaxy S8+) Infinity displays, traditionally based on high-resolution Super AMOLED matrices (2960 x 1440 pixels).

Thanks to proprietary HDR technologies, content (photos and videos) on the screen of new Samsung smartphones looks perfect, without loss of color depth and contrast.

One of the features of AMOLED technology is that each pixel of the display emits light independently, which eliminates the need for additional backlighting and is used in the “Always On” technology to display the current time, notifications of missed calls and messages, as well as other information on the screen of a smartphone in sleep mode.

The displays of the Galaxy S8 and Galaxy S8+ have a rounded shape on the sides and occupy almost the entire area of ​​the front panel of the smartphones, on which there is only room for the front camera with a megapixel resolution, light and proximity sensors, as well as an additional biometric sensor - an iris scanner of the user's eyes .

The latter sensor can be used to unlock your phone without having to enter a password or PIN.

What is inside

Both new products from Samsung received some of the most powerful mobile chips these days: 10-nanometer processors Qualcomm Snapdragon 835 (American version) and Samsung Exynos 8895 (international version).

The use of 10-nm lithography for the production of processors has made it possible to increase their performance and reduce battery power consumption.

These processors (or rather System-on-a-Chip) are paired with high-speed LPDDR4 RAM, the volume of which will be 4 GB and fast UFS 2.0 flash memory with a capacity of 64 to 128 GB (depending on modification), which can be expanded with using a MicroSD memory card slot.

The memory card slot in the new Samsung flagships, like last year's Samsung Galaxy S7 smartphones, can be combined with a dual SIM card slot, one of which will have to be removed to expand the built-in memory.

Versions of smartphones with one SIM card slot and a slot for MicroSD memory cards will also be released.

In addition, new products from the Korean manufacturer boast a standard 3.5 mm headphone jack and batteries with a capacity of 3000 mAh (Galaxy S8) and 3500 mAh (Galaxy S8+) with support for fast and wireless charging.

This time we will be able to charge smartphone batteries via a reversible USB Type C port, without worrying about the correct orientation of the smartphone. This port can also be used to connect phones to a computer (traditionally), connect an external display and other peripheral devices.

It is worth noting that in addition to the fingerprint scanner, the user’s heart rate sensor is located on the back panel of the smartphone.

Dimensions and materials of the case

Despite the fact that we have smartphones with quite large diagonal displays, the new Samsung flagships, thanks to displays without side frames with rounded edges, have relatively compact dimensions: 148.9 x 68.1 x 8.0 mm for the Galaxy S8 and 159.5 x 73.4 x 8.1 mm for Galaxy S8+.

For comparison, the dimensions of the Apple iPhone 7, equipped with a display measuring only 4.7 inches diagonally, are 138.3 x 67.1 x 7.1 mm, and the dimensions of the 5.5-inch iPhone 7 Plus are 158.2 x 77.9 x 7.3 mm.

The body of the new products is made of metal, and is traditionally waterproof, and its rear panels, apparently, are coated with glass ceramics.

Interface and software

Starting this year, Samsung's flagship smartphones will receive a completely new shell of the Android operating system called Samsung Experience. Another innovation that the Koreans will delight us with this time will be a branded personal assistant Bixby, capable of answering user questions and executing commands given by voice. To call an assistant, there is a special button on the right side of the smartphone body

Bixby will remind you of events, remember your habits, play your favorite music, help you make purchases, and much, much more.

Let's hope that all these add-ons will not negatively affect the smooth operation of the interface, which was often the case with the previous TouchWiz shell, as well as the battery life of smartphones.

Samsung Connect allows your smartphone to connect to your home and control you (and Bixby) all your devices remotely.

Release date and prices

As was announced at the presentation of the new products, the Samsung Galaxy S8 and Galaxy S8+ will go on sale on April 21.

The price of Galaxy S8 and Galaxy S8+ will be announced additionally.

Specifications of Galaxy S8 and Galaxy S8+

Samsung Galaxy S8 Specifications

Screen: 5.8 inches, Super AMOLED matrix, resolution 2960 x 1440 pixels;

Screen: 6.2 inches, Super AMOLED matrix, resolution 2960 x 1440 pixels;

Display protection: Gorilla Glass 5;

Processor: Qualcomm Snapdragon 835 or Exynos 8895;

RAM: 4 GB LPDDR4 type;

Built-in memory: 64 GB UFS 2.0 type;

Memory expansion: MicroSD memory card slot (max. capacity 256 GB);

Main camera: 12 MP (f/1.7) with autofocus and LED flash;

Front camera: 8 MP f/1.7;

Wireless modules: Wi-Fi 802.11 b/g/n/ac, Bluetooth 5, NFC, GPS;

Finally, the fact that some smartphones can be safely immersed in water and not worry about their performance has ceased to be some incredible innovation, but has become commonplace for a modern mobile device. Samsung S8 and S8 Plus can also be submersed in water.

These devices have moisture protection according to the IP68 standard (the best standard for the “mass” market today).

Waterproofing on Galaxy S8 and S8 Plus

What does the IP68 dust and moisture protection standard used in the Galaxy S8 tell us?

1. The first number indicates the degree of protection against dust. And “6” means the fact that the case is designed in such a way that dust should not penetrate inside the device. No way. This is the maximum figure.
2. The second number is protection against water. “8” is a very good result. This means that the Galaxy S8 can be immersed in water to a depth of more than 1 meter for 30 minutes. Moreover, under these conditions it remains fully operational. This is really cool - now you can safely use your smartphone in the bathroom :)

By the way, in terms of these characteristics, the S8 is superior to its closest competitor, the iPhone 7 (it has an IP67 protection standard) - which only allows the smartphone to be immersed in water for a short time.

And the flagship from Samsung even allows you to swim in a pool or in a river with a mobile device, capturing beautiful underwater views on camera. We believe it’s not even worth mentioning that immersion in water for a few seconds, taking a shower with a phone, raindrops and other similar factors will in no way negatively affect the S8 and S8 Plus.

Disadvantages of moisture protection

What do we guarantee from the manufacturer? In fact, it does not guarantee anything at all. “You can safely immerse your smartphone in water” is more of a marketing ploy than a guarantee that nothing will happen to our S8. Because if your smartphone stops working, you won’t be able to repair it under warranty.

It’s a funny situation - the manufacturer is sure that the smartphone cannot be damaged by moisture due to the owner’s fault, but if moisture nevertheless becomes a critical factor for the smartphone, then the user is solely to blame.

Another serious disadvantage of moisture protection is the vulnerability of the charging port. Its only protection is the installed moisture sensors. If you immerse the device in water and decide to charge it using the cord, a notification will immediately appear on the screen that moisture has entered the port, so charging is impossible:

“Checking the port, moisture was detected; the charging port must be dry to charge the device” - this is the message you can see when trying to charge a wet Galaxy S8.

As a result, you either use wireless charging or wait for the port to dry out on its own. By the way, once we caught a curious “glitch” - the warning about the need for drying did not disappear for a very long time (days). I had to.

Experiments

On the YouTube video hosting site, it won’t be difficult to find experiments where Samsung S8 owners test their devices for moisture protection.

For example, a smartphone was immersed at the bottom of the bath for exactly half an hour. After they were removed, the device was fully checked for functionality - there was no damage to the device.

However, more serious tests can easily be detected - the Galaxy S8 was under water for several hours or even a day(!) and, at first glance, no problems arise after removal. But we would not specifically advise doing or experimenting in this way. In the end, protection from water is just an additional opportunity to maintain the functionality of the device in an extreme situation, and not a reason to look for the answer to the question “at what depth will the Galaxy S8 stop working?”

P.S. Moisture protection is very cool! Agree? “Like” for this! And of course, if you have anything to add, we are always waiting for you in the comments!

Some say that electronics and water are incompatible, but not in the case of these smartphones.
They have a water-resistant coating that protects them from rain, sweat, spills, or falling into a puddle. Their water resistance is classified according to protection levels, which are determined by the International Electrotechnical Commission (IEC).

The most common levels are IP67 and IP68. IP67 rated smartphones are fully dustproof and can withstand 1 meter of immersion for 30 minutes. Smartphones with IP68 protection level can be submerged to a depth of 1.5 meters for up to 30 minutes.

Most manufacturers classify their devices as waterproof or waterproof. Water resistance means that the smartphone is not afraid of small splashes of water, rain, sweat, falling into snow or spilled liquid. Water resistance means the phone won't suffer from being completely submerged or getting wet, so it won't fail if you accidentally drop it in a pool, toilet, or glass of drink. Also, such a waterproof phone can survive getting wet in the shower, sink or bathtub.

It is important to remember that waterproof and water-resistant smartphones do not like salt water. They should also not be used in saunas, steam baths or hot tubs, as higher temperatures may damage the device. Also, do not press the buttons while the phone is under water, as this may cause unwanted water to enter the case. Also, be sure to wait until your smartphone is completely dry before charging.

Top 7 Best Waterproof and Waterproof Smartphones

Rating: ★★★★★ | Protection standard: IP68 | Price: 54,990/59,990 rub.
The Samsung Galaxy S8 and Galaxy S8+ have long been crowned two of the best smartphones to debut this year. Both variants feature innovative QHD+ AMOLED displays that are virtually bezel-less (the S8 has a 5.8-inch screen, the S8+ has a 6.2-inch diagonal) housed in a stunning, waterproof design made from metal and glass. Of course, like Samsung's top models, they offer you a powerful processor, an excellent camera, and wireless charging functionality. Both phones are also compatible with the latest Gear VR.

Rating: ★★★★★ | Protection standard: IP67 | Price: 52,990/62,990 rub.
iPhone 7 delivers a superb combination of powerful hardware, an exceptional camera and stereo speakers, all packed into the beloved, now fully waterproof design. But we would advise you to pay attention to the iPhone 7 Plus model, which has a more powerful camera and a better battery. You won't find a headphone jack on any of these models, so be sure to also buy wireless headphones.

LG G6

Rating: ★★★★☆ | Protection standard: IPX7 | Price: 39,990 rub.
The flagship LG G6 smartphone has a magnificent 5.7-inch display, which is placed in a surprisingly compact body. It has an IPX7 rating that allows you to submerge it up to a meter deep for 30 minutes. Other features include a powerful processor, dual cameras, wireless charging, and expandable storage.

Rating: ★★★★☆ | Protection standard: IP67 | Price: 37,690 rub.
HTC's latest smartphone, the U11, boasts a unique design and an all-metal body. It's IP67 rated, so you can completely submerge it in water up to a meter deep for up to half an hour. The smartphone has a crisp and bright 5.5-inch Quad-HD display, but it's not as impressive as the display on the Galaxy S8. The U11 is equipped with the same chipset as the S8, but it does not have a headphone jack.

It has one unique feature that makes it different from any other smartphone - the Edge Sense feature that allows you to open apps quickly. In addition, the U11 will feature Amazon's voice assistant called Alexa. The phone comes in silver, blue, black and red colors

Rating: ★★★★☆ | Protection standard: IP68 | Price: 34,990/42,990 rub.
The Samsung Galaxy S7 and Samsung Galaxy S7 edge are top-notch smartphones that come at an attractive price. Both have waterproof bodies, excellent cameras and bright screens. They also support several fun accessories and services, including Samsung Pay and VR headsets.

Specifications

• Dimensions: 148.9 x 68.1 x 8.0 mm, weight – 155 grams;
• Display: 5.8-inch with WQHD+ resolution (2960×1440), 579ppi, 18.5:9, matrix – Super AMOLED;
• Processor: Exynos 9 Octa 8895, 8 cores, 10 nm;
• Video accelerator: Mali-G71;
• RAM: 4 GB;
• ROM: 64 GB + microSD slot up to 256 GB;
• Main camera: 12 MP, 1/2.55″, 1.4 µm, OIS, f/1.7, 4K video recording;
• Front camera: 8 MP, f/1.7, 1/3.6″, 1.22 µm;
• Battery: 3000 mAh;
• Other: USB Type-C; microSD slot, fingerprint scanner, iris scanner, IP68 case protection.

Design and ergonomics

Let's be honest - this is the best looking smartphone on the market. Everyone is talking about this and this is most likely the first time this has happened. You will find very few, if any, reviews that say the design was a failure. No, it's chic and has a wow effect.

After S5, each subsequent generation only got better. The sixth generation has changed completely: “Samsungs” have ceased to be remnants and have become more premium in appearance and tactility. “Seven” has stepped even further and increased its practicality. Now we actually have before us a work of art – the S8. This is not a perfect smartphone, it has its own shortcomings and I will tell you about them, but if we are talking about first impressions, they are great. The smartphone looks modern, technological, and premium, all at the same time.

The body is made of glass (Gorilla Glass 5 on both sides) and metal. As before, the quality and assembly are perfect. That is, there is nothing to complain about - it does not spin, is waterproof and pleasant to the touch.

In terms of elements, everything is more or less standard, but I will note some points. The bottom is now USB Type-C. The 3.5mm headphone jack is in place, for which many thanks. During a flight to the States, I experienced pain with my iPhone 7 Plus when I was watching movies through Lightning headphones and the smartphone was dead. How to charge it and watch a movie? Wireless only. I also had such headphones, but, by the way, even in this regard, Samsung went further. S8 is the first smartphone with Bluetooth 5.0, which means not only increased data transfer speeds, but also the ability to simultaneously connect two BT devices (two headphones, two speakers). Moreover, you can control the volume of each separately. This is very cool, for example, you can watch a movie together and not disturb anyone.

But what still irritates me is the location of some holes on the edges. Well, I can’t come to terms with the off-center location of USB Type-C. But what’s even worse is that all the other holes at the bottom are not located on the same line.

It seems like a small thing, but if we are talking about the most beautiful phone, these little things are worth paying attention to. I understand that to align these elements it would be necessary to design a different placement of everything on the board, but damn, you designed thin frames! By the way, the hole of the second microphone on top is also shifted.

The scanner located at the back is, as expected, inconvenient. I use my phone all the time and I can’t say that I’ve gotten used to it. On the contrary, I developed the habit of looking at the back of the smartphone before unlocking it in order to get my finger in the right place. Otherwise I'm constantly touching the camera. Why didn't they make the scanner under the camera like everyone else?

The good news is that the scanner works quickly and immediately unlocks the smartphone, without the need to press anything. And you can also attach a gesture for lowering the curtain with notifications, like on “pixels”.

You will say that you can use the improved facial recognition feature to avoid constantly reaching for the scanner, but this is just a toy because you can simply unlock the screen with your photo. I tried it myself and it really works. And the smartphone itself warns that even someone just like you will do. This is an unreliable method of protection.

The iris scanner helps, but face unlock doesn't work. But unlocking the iris is quite slow and not always the first time. To launch the iris scanner, you need to press the lock key and swipe across the screen, which takes a long time, and then also hold the device at a certain distance and place your eyes in the circles.

If protection is important to you, but you don’t store codes for the red button on it, then I wouldn’t worry, everything works quickly in the face. And what needs to be hidden can be hidden in a protected folder, to access which you will need to enter a password. True, face unlock does not work in the dark, but there is a scanner on the back. In short, there is a choice.

Small frames on all sides are, of course, very beautiful, but is it convenient? Not really - I can only use my smartphone in the case. I am glad that there are many branded ones, and there will be even more third-party ones, for any requests.

The thing is that without a case I constantly touch something on the screen. It’s even hard to watch a video on YouTube, because there’s nothing to hold the smartphone, because there’s also not enough space at the top and bottom.

Of course, I understand that framelessness is the future and Samsung is great. Perhaps algorithms will soon appear that will recognize and ignore accidental touches of edges, but this is unusual now.

I also don’t quite understand the lack of stereo speakers in the flagship in 2017. This is a drawback, because one speaker, although of high quality, is covered every now and then.

There are now no keys under the display. This is good. I was very annoyed by the touch buttons “back” and calling up the multitasking menu, because they constantly got in the way. Now all the keys are on-screen and hidden when not needed, freeing up more free space. The home key is now also virtual, but they came up with an elegant solution for it. It is visible even on a locked screen, thanks to the Super AMOLED display and the Always On Display function. And it reacts precisely to pressing, and not to touch. When pressed, you feel a vibration that simulates pressing a button. Not a taptic engine, but not everyone likes it either, so overall they came up with a very good implementation. By the way, this press works in any menu and application, even when the button itself is visually hidden.

Another change I’d like to note is the new mechanical key on the left side; it’s responsible for calling the Bixby voice assistant, which I’ll talk about a little later. Otherwise, everything is simple: on the right is the lock key, on top is a tray for a SIM card and memory card, as well as a second microphone.

Display

The screen is the main part of any smartphone, but here it is of particular importance. It is because of this that the S8 creates this very wow effect. It occupies 83.6% of the front surface, although it seems that all of it is 95. The remaining almost 16-odd percent are frames, although minimal: 6 mm at the bottom and 7 mm at the top. They were able to place everything on them: a camera, an iris scanner, sensors, and a speaker. The only thing that was removed was the Samsung logo. We will mourn him (no).

There are side frames, but they are very thin, due to the curved edges of the display.

The proportions have changed, now they are 18.5:9, and the resolution is 2960x1440 pixels. That is, it is extended upward, due to which the diagonal of the smaller model is 5.8”, and the plus version is 6.2”. But don't think that this is a phablet; the width of the entire S8 smartphone is less than a 5.5" display with an aspect ratio of 16:9. So the display is narrow and tall, and its area is comparable to the S7 and S7 Edge. It is not entirely correct to compare diagonals here, because the ratios are different. If you make the smartphone generally narrow and tall, the diagonal will still be large.

There seem to be no problems with software optimization, because in the settings you can choose which applications should be automatically optimized for a wide format.

As before, the matrix is ​​Super AMOLED, there is support for the HDR 10 standard for watching Amazon Prime, for example. Overall, I can call the screen the best of those on the market. It is very beautiful, energy efficient and has its own unique features, like AOD. In the settings, you can change the color scheme, enable night mode, and also change the displayed resolution: from HD+ to WQHD+.

This doesn’t affect the quality, at least you can’t see it, but it saves battery life. I think the setting itself is only needed for VR, so they could make it automatic. You wouldn't notice anyway.

Cameras

The main camera has not actually changed - the same 12.2 MP, aperture 1.7, the same matrix. The quality remained exactly the same, that is, very good, but, you see, we expected more. Until recently I hoped that there would be a second camera, but no. The only thing that has changed is autofocus; it has become similar to Canon’s Dual Pixel. The video is recorded in 4K with optical stabilization, and at any lower resolution, software is also connected. Therefore, the picture is very stable.

But the front camera has grown: 8 MP, video is recorded in 2K, there is software stabilization. But the main thing is that it has autofocus.

I liked the camera application, it is not overloaded, at least it doesn’t feel that way. Everything is functional, access to most functions is via swipe.

Examples of photos taken with the main camera

Examples of photos taken with the front camera

Video examples

Bixby

Bixby is Samsung's new voice assistant. I’m sure they will ignore it, like they did with S-Voice, because there is already a visible strategy here, and not a banal race for having something that speaks in smartphones. The Bixby developers once created Siri and sold it to Apple. And now Samsung has bought this company and they are creating a new generation assistant. The seriousness of the intentions is emphasized by the fact that for Bixby there is a separate (!) mechanical key on the smartphone body that cannot be reassigned (!). For now, the assistant only supports English and Korean.

The button is on the left side, under the volume key, and it’s not entirely clear to me. No matter how cool the assistant is, a separate button for it is somehow too much. Moreover, my considerations are extremely practical - this key is constantly pressed, which turns on the smartphone. And the button itself is nothing at all. If only other functions could be assigned to it. But no, only Bixby, which still doesn’t work fully for us. The Russian language is not supported, and the assistant itself looks like a toy today. Cool features are announced - deep contextual understanding, as well as object recognition in the camera. For example, I saw something, looked it up and immediately ordered it on Amazon. But it just works poorly so far and at best recognizes the type of object: bicycle, slippers, watch. It’s still difficult with specific models. However, as I already said when getting acquainted with the smartphone, Bixby is the brainchild of the creators of Siri, so we’ll have to wait and see.

Our respects, dear visitors. Today we will find out how water protection performs on the Samsung Galaxy S8. It's no secret that Korean developers have equipped the company's new flagships with water and dust protection technology.

But for me, I wouldn't experiment with my thousand-dollar smartphone by bathing it in the bathtub, or walking with it in the rain and listening to music. It’s better for us to look from the outside at how others do it, and it won’t hurt our pockets, and we’ll have a clear idea of ​​what’s best not to do :)

Rain is certainly not a problem for this smartphone 😀

Well, the phablet has a waterproof rating of IP68, this class tells us that the mobile device that has it. It is protected not only from dust and small particles getting into it, but also from water. Moreover, under water, it should work for about half an hour! In any case, that's what the manufacturers assure us. The IP68 indicator is divided into two parts; let’s look at these indicators in more detail:

Indicator 6 tells us about the high level of protection of the smartphone from the penetration of dust and foreign small objects. Of course, only if you don’t deliberately push something into its charging socket, or immerse it in the sand. At the moment, he is the tallest.

Indicator 8 tells us that the Galaxy S8 and S8 Plus are protected from water. And the most interesting thing is that it can be lowered into water up to one and a half meters deep, and kept there for up to half an hour. And all this time it will be fully functional. Of course, the touchscreen in water may not respond to touches, but you can easily take pictures using the volume buttons.

On a note!

An interesting fact is that the seventh iPhone has a dust and moisture protection class of IP67, and it can be briefly submerged in water up to a meter deep :)

In turn, the Samsung Galaxy S8 is more loyal to water procedures. And there can be no question of it being damaged by raindrops or a bucket of water poured on its owner.

Disadvantages of water protection on the Galaxy S8

Don't try this at home!

And now the most interesting thing, which we mentioned at the beginning of the article. Unfortunately, the warranty does not cover cases where the Galaxy S8 fails due to water. No matter how paradoxical it may sound, it is true.

So what happens is all this talk about moisture protection and water resistance is just idle talk and tricks of marketers? We hasten to assure you that no, the smartphone is simply not intended for targeted use under water.

The smartphone is protected enough to function perfectly after short-term contact with water. And a depth of one and a half meters, and a half-hour period of time, these are already achievements obtained in the course of experiments that determine the maximum limit of what is permitted.

You should also remember if it so happened that your Galaxy S8 took a dip. Don't even try to charge it via the cord anytime soon. The charging connector contains moisture-proof sensors, which signal the device about the presence of water.

Even if you do try to charge your smartphone immediately after drinking water, which is highly not recommended. The display will indicate that moisture has been detected in the charging port and must be dry to charge.

The best solution in this situation is to dry the smartphone with light streams of cool air. To do this, you need to place it under a light draft; in extreme cases, you can charge it with wireless charging.

Self-tests of Galaxy S8 and S8 Plus for moisture protection

As we wrote above, you shouldn’t look for an answer to the question of how long the Galaxy S8 can stay in water and at what depth. This technology does not guarantee 100% impenetrability of the phablet. It is only designed for force majeure cases that are impossible to predict. At such moments, most often the water impact is minimal, of course, if the owner of the device immediately removes it from the water.

Below we have prepared for you a selection of videos of brave daredevils testing their Galaxy S8 in the water. We recommend them for mandatory viewing in order to satisfy your curiosity and discourage any desire to repeat them.

Write in the comments what you think about the cancellation of the service warranty due to the phablet becoming unusable due to contact with water.

Video: Samsung Galaxy S8 tests underwater