Dual Screen Smartphone? – Front AND Rear Displays Tested!

So here's a new one for you, a smartphone
with two screens. This is the Nubia X – an Android smartphone
that comes with two built in screens, one on the front, and one on the back. You know we couldn't let this one slip by
without a full on durability test. Let's get started. [Intro] So supposedly if you want to work this contraption,
there are two fingerprint readers on the sides that when gripped allow whatever's displayed
on the front screen to slip over onto the back panel while retaining full functionality. You can run the whole phone from back here. When the rear screen is turned off, it looks
just like a normal phone.

Let's see what happens when we scratch test
both screens. This Nubia X comes with a builtin screen protector
which is nice. I'll pull that off. The interesting thing with this phone is that
there's no notch, there's no front facing cameras or sensors that need to be hidden,
which allows the whole front of the phone to light up edge to edge, as a display with
pretty much no bezels. As we see from the scratch test, the front
is made with tempered glass, scratching at a level 6, with deeper grooves at a level
7. We've got to be fair to both screens though. I'll grip the sides and flip it around. The rear screen has a much lower refresh rate
than the front screen, and has kind of a yellow tinge to it. It's also covered with a screen protector. I've found that the yellowness is just a blue
light filter that can be removed. I'll show you that in a second. The blue backing on the phone is kind of like
reflective film that acts as a 2-way mirror, that hides the second screen when it's turned

And once again we get scratches at a level
6, with deeper grooves at a level 7. The rear screen is covered with the same glass. Part of what makes the front screen so bezel-less
is how small this earpiece is. I almost missed it. It's barely the thickness of my razor blade. The sides of the phone sound and look like
anodized aluminum. You can see the silver color shining through
under the blue coating, even here on the blue power button. One possible weak point in the frame is this
flattened portion where the fingerprint scanner resides.

It looks suspiciously like the design flaw
we saw on the iPad Pro, and we know how that one turned out. This phone has 2 of them, one on either side. I'm kind of nervous. The top of the phone has more metal and what
looks like an IR blaster up top for changing the channels on your TV. On the other side we have the SIM card tray,
volume rocker, and another flattened fingerprint reader…because why have just one fingerprint
reader when you can have two? Two is kind of the theme of this phone.

There are 2 SIM card slots as well, which
pair nicely with the two screens. Just one USB-C port down here at the bottom
alongside the loudspeaker holes. You might be thinking to yourself, 'Jerry,
why in the world would anyone want two screens on their phone?' Well let me tell you. There are no front facing cameras on the Nubia
X, just these two dual rear cameras: a 16 megapixel and 24 megapixel. One regular and the other one for that portrait
mode stuff. So when you want to take a selfie, you get
to use the powerful rear facing cameras while seeing your face at the same time. It's an interesting solution to the notch
problem, but also a solution that actually works. I'm impressed with the ingenuity – I genuinely
did not see this one coming. Like dual everything else on the phone, there
are two fingerprint scanners. You can use one or set up both for added security. And even with the damage inflicted on the
right side, the phone can still sense and unlock my fingerprint. Not too shabby, but at least there's a backup
if one ever fails. Now here's where things get interesting.

This front screen is a 6.2 inch 1080p IPS
LCD, meaning that after about 10 seconds we see the pixels getting hot, turning off and
going black, until the heat is removed, and then they slowly recover. They do recover completely though. Checking the back screen though, is where
we see one of the brilliant parts of the Nubia X design. An LCD screen when turned on has light shining
through every single pixel, even the black ones. So the whole display lights up. An LED screen or an AMOLED screen does not
have light shining through the black pixels, so you really can't tell when the screen is
on or off because the blacks are so black and emit no light. The Nubia X is using a 5.1 720p AMOLED screen
on the back, an LCD on the front, and AMOLED for the rear. You can see the pixels going white and not
recovering. Both technologies on one single device – burn
test justification. Checkmate on the haters.

The rear screen can act like an always-on
display without showing the actual edges of the screen. This provides the aesthetic illusion that
there's no screen at all on the back panel. Whether the screen is lit up or not, you can't
really see the rectangular edges due to the super black AMOLED pixels. It's interesting how all these innovative
smartphones keep popping up out of nowhere. No complaints from me. Here's a quick look at the rear display with
the blue light filter turned off. It looks completely normal and has as good
of quality as the front screen. I'm not sure why the Nubia X had that setting
turned on right out of the box. I think it looks pretty good. All of these awesome gimmicks though mean
nothing if the phone can't survive in your pocket for a few years. Here on my channel we put phones through years
of abuse in just a few minutes. It's time for the bend test. The dual fingerprint design on both side rails
might just be fatal.

With a solid flex from the front, we get minimal
bend, but no catastrophic damage, creeks or snaps. The rear screen looks fine. Even when bent from the front, the phone remains
intact and fully functional. No complaints here. The Nubia X is a structurally solid device,
even with all that fragile tech packed in, and while having screens on both sides, this
phone survives. As a side note, if one screen does actually
break, you can always just use the other as a back up since it does come with two. Do you think this phone is the future? Is a dual screen phone a better solution than
a motorized front facing camera? Which one do you prefer? Back to back screens are definitely fascinating. Hit that subscribe button if you haven't already. And come hang out with me on Instagram and

Thanks a ton for watching. I'll see you around..

As found on YouTube

Samsung Galaxy Z Flip Durability Test – Fake Folding Glass?!

Samsung just released a new folding phone with a bolt claim that it has revolutionary flexible glass like it says here on their website we'll be putting that to the test today this is the Samsung Z flip or the flips depending on how you open the box it does come with a case one for each half of the phone kind of nice Samsung says this is a statement smartphone for people who want to stand out a phone that demands attention and I'd have to agree the ability to fold your phone in half is genuinely crazy and by crazy I mean crazy awesome we can now have a full sized phone and a compact design that takes up half the space the future is amazing it's time for a durability test let's go I mean let's get started [Music] [Applause] [Music] starting off pay very close attention to this first warning and remember it it says avoid pressing hard on the screen or the front camera lens tap the screen lightly to keep it safe Samsung said at their launch event that they've done the impossible and created ultra-thin glass that folds this glass can be folded over 200,000 times Samsung said when you fold it you're not just bending glass you're bending the laws of physics but that warning included on the phone isn't as confidence inducing as Samsung's launch event attempted to be it does feel nice though this type of fold is definitely my favorite so far I like having a phone that folds instead of having a tablet that folds there are two things I noticed right off the bat with the Z flip one is the crease here still along the center not a big deal there's also a small divot in the display above the front-facing camera lens you can see the curve of my lights along with the bend of the surface of that display the Samsung logo along the spine gets entirely covered up when the phone is open this new hinge design apparently has thin brushes inside to keep out dust we'll test that later there's also no screen lifting off the frame like we saw on the Motorola RAZR which probably makes this design much safer and more long-term there is a bit of a gap between the two halves of the phone when it's closed also fine and it makes sense because if the screen really is glass we can't have glass clacking against glass every time the phone gets closed that just wouldn't end well speaking of things not ending well it's time to see if this material really is glass or not I've been doing the same durability test on every major new smartphone since the galaxy s6 came out five years ago it is an expensive hobby yes but I think it's fairly useful in finding out what your phone is made from and how well it'll handle everyday life plastic as we know scratches at level two or three real glass would scratch it a five or six and sapphire would scratch at an eight or nine right under diamonds which are level ten as my first most pick touches the display of the galaxy Z flip we can see marks start to appear this is rather unfortunate continuing onward we can see deeper grooves happening at a level three this is exactly how a plastic screen would react exactly like we saw in the Galaxy fold the Motorola RAZR and basically every other plastic screen smartphone ever made for kicks and giggles we can bump it up to a level four and I could physically feel the tip of the pic start to cut the display surface open so why in the world would Samsung talk about flexible glass so much on their website and at the launch of it it could be that they are using a hybrid plastic polymer with little specks of glass ingredients inside and then just you know calling a glass but that doesn't really seem like a very nice thing to be doing if a company says glass their customers will think of a hard clear material that has excellent scratch resistance from a durability perspective that scratch resistance is the primary reason that glass is used on basically every smartphone display Samsung is calling this glass but this display clearly doesn't have the scratch resistance or structural benefits that customers are expecting from glass if glass isn't glass then truth doesn't matter and truth should matter this isn't American politics Samsung is currently the number one smartphone manufacturer in the world and we shouldn't be calling this screen glass when clearly my fingernail is leaving marks on the surface over and over I'm not sure what Samsung's thinking over there but we clearly have scratches at levels two three four and fingernail I don't know what material this is but Samsung definitely shouldn't be calling it glass and I'm disappointed even if I jump up here to the front facing ten megapixel selfie camera the surface is covered in that same so-called glass material and can still be scratched with my fingernail I'll come back to this again in just a second the raised screen bump around the edge of the screen is made from plastic this is the same thing we saw in the Galaxy fold this guy kind of holds the screen in place and keeps people from peeling off the top layer [Music] the volume rocker is made from metal the recessed power button here on the side is stretchable I'll set my finger print and see if it still works don't mind my thumb by the way I smashed it with a TV a few weeks ago now the phone is still able to be unlocked even though the fingerprint scanner is damaged but to test it some more I added some more scratches and after the additional scratches are in place my fingerprints stopped working interesting the frame of the galaxy z flip is made from metal and down here along the bottom you have more metal alongside the singular loudspeaker the USBC port and you know the no headphone jack the whole frame of the phone seems to be made from metal which is a good thing and will hopefully keep the phone together during the bin test later there are a few plastic antenna lines and a removable SIM card tray but no expandable memory the center hinge mechanism is made from metal which that Samsung logo recessed into the spine each of the tiny letters is made from a piece of shiny foil that is glued inside the cavity these will probably never fall out on their own but it's interesting to see what the Z flip is made from the rear panels are made from glass both the top and the bottom sections this mirror purple is kind of growing on me it gradually switches between purple and blue depending on how the light is shining on it there are two cameras on the back a 12 megapixel ultra wide-angle camera and they 12 megapixel normal camera both covered in real scratch resistant glass I think the fingerprints are getting a bit out of hand though thanks to our channel sponsored D brand for hooking me up with the limited edition robot camo each of these fingerprint fighting skins are totally unique no two phones will be the same and the individual drawings are super intricate and are currently available for every phone that D brand covers not just the galaxy Z flip I got one added to the back of the grip case for my note 10 plus since the grip case has the cutout for skins and can be swapped out whenever kind of fun I'll leave a link down in the description if you want to pick up some robot camo or a case for your own phone one cool thing about the folds is that has the world's tiniest viewfinder for selfie taking I can double click the power button and it lets me see myself and take a cute little pic thumbs up for that will perform the world's smallest scratch test on it and moving up through Mohs scale of hardness we can see that pics 1 through 5 don't leave any marks like we would expect we only see scratches starting at a level 6 with deeper grooves at a level 7 which is the scratch resistance we expect from anything with the word glass in the name anything that scratches earlier should not be called glass even if the Z flip displayed does hypothetically have glass ingredients in it we shouldn't be calling it glass unless it has the properties of glass I can't go make a pile of mud sprinkle in some chocolate chips and then call my mudda cookie just because it has some of the ingredients of a cookie that shouldn't be allowed but then display lasted about 15 seconds under the heat from my lighter when I pulled the flame away there were burn marks still left on the screen and it did not recover one really interesting thing though if you watch again is that you can physically see the screen change shape as the heat from my lighter heats it up plastic of course is affected by the temperature of my lighter glass however would not be physically affected in the same way as the surface cools down the shape of the screen returns to normal let's start with the slam shut test you know if you get a little aggressive with hanging up on someone after a phone call and you smash the phone closed we got to see if the phone survives it does have the physical raised bumpers all along the outer edge of the screen those bumpers are absorbing most of the slamming force and the screen is still in one piece of course the phone is meant to fold inwards Samsung said it was survived 200 thousand times which is a hundred eighty two times a day and if you plan on keeping your phone for three years bending back the opposite direction though is a different story with the first flex we get a small separation of the frame near the antenna line and the top half bumper started coming loose but the screen of the Z flip is still entirely intact and in one piece they still shuts and opens with no grinding of the hinge we'll try it again you can see the back panels of the phone meet in the center providing more support to keep the phone from bending backwards and the phone hinge does a really good job of keeping the phone shape for the most part only on our third bin did we finally hear a snap from the frame near that power button and even then the so-called glass screen of the Z flip is still intact folding screens are pretty resilient even though the phone doesn't really shut quite right anymore it's physically withstanding quite a bit more abuse than I initially thought it could only now after all its previous bins and cracks does the back panel shatter it's only a cosmetic wound since the display is still working just fine and this is good to know all the important things are still functional you might be asking hey Jerry what if there is a super thin layer of glass on top of the display if that were true we would start to see fractures and cracks from that nano layer but instead we only see the tip of my most pics cutting into the plastic like we would see with any piece of plastic that gets cut the screen is in no way scratch resistant whatsoever and if poked hard enough the pixels will still get damaged it does survive my bin test however and everything is still functional this is certainly the most durable folding phone we've seen yet Samsung did say that they designed this new hinge with little tiny fibers inside or little brushes to keep out dust and dirt from the folding bits it'll be awesome to see what this looks like from the inside during the teardown so make sure you're subscribed to that after pouring my rocks on the screen and making sure they cover the entire phone just like it would if you dropped it when you accidentally go outside initially I could hear a few little complaints of the dust inside the hinge [Music] but after blowing all the dust off those complaints mostly went away this new hinge design might actually be the start to something really good but the real danger of calling something glass means that people will think they have the protection of glass when that clearly is not the case glass distributes pressure along the whole phone while this plastic allows that pressure to get in and damage pixels you can see that each pressure point for my pick kills the line of pixels directly above it this would not happen if the screen were glass and it's dangerous to let people walk around with that false sense of security like Samsung gives them when they call it glass and that's not all each of these puncture wounds does let air get inside the sealed OLED layers which kills even more pixels a puncture or cut in the plastic screen is a cancer that will eventually spread across the whole display yeah I sound a bit apocalyptic but it's important to know what your phone is capable of and what might damage it so remember the Samsung Z flip does not have a true glass screen and it's still very fragile that being said it's also still pretty awesome Samsung should just correct their verbage let me know what you think of Samsung's verbage down in the comments if you enjoyed this durability test come check out my last video we monitored a wheelchair to go on a safari in Africa it turned out pretty cool coming out with me on Instagram and Twitter and thanks a ton for watching I'll see you around

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