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I currently have a tablet z and I am wondering how does this compares to Tab S 8.4.
I am thinking about buying this one on account of the superb screen but seems that there are a great deal of lag happening, is it so?
Thanks in advance!
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So, no opinions?
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AllanJacques said:
I currently have a tablet z and I am wondering how does this compares to Tab S 8.4.
I am thinking about buying this one on account of the superb screen but seems that there are a great deal of lag happening, is it so?
Thanks in advance!
Sent from my SGP311 using Tapatalk
Click to expand...
Click to collapse
This is by no means the fastest tablet out there. Though I love the screen and my aosp ROM is working better everyday and has eliminated any lag issues I had.
AllanJacques said:
I currently have a tablet z and I am wondering how does this compares to Tab S 8.4.
I am thinking about buying this one on account of the superb screen but seems that there are a great deal of lag happening, is it so?
Thanks in advance!
Sent from my SGP311 using Tapatalk
Click to expand...
Click to collapse
I can't compare with the tablet Z, but I own a Tab S 8.4, a Nexus 7 2013 and a Note 8.0. I will try to answer your questions based on my experience:
The tab S 8.4's screen is a huge disappointment to me. It looks awesome in bright environments, the high pitch and vivid colors are pleasant to my eyes. However, for someone with high expectations as I did, it suffers from several issues that used affect previous AMOLED generations and totally ruin my experience:
- Smearing on black backgrounds. An issue that was already reported on Galaxy S4, and that seem to affect Tab S 8.4 as well: A dark red smear is visible when watching movies on black backgrounds. It looks like black pixels are slower at displaying a color than already lit pixels. The result is not obvious on first watch, but once noticed becomes a nightmare in dark movies.
Here is a fix for this issue: http://forum.xda-developers.com/showthread.php?t=2259775
While this seem to be pretty efficient fixing the smearing issue, the result is not perfect, it is rather annoying to use AND we lose the benefits of perfect blacks in the darkness. And it impacts battrery life, as a dark grey pixel is powered, while a black one is not.
- Mura effect. Basically, dark (but not black) colors are not homogenous on the screen. It is only really noticeable in the darkness, wich is my main usage for the tablet. Rather annoying, especially since the fix for the smearing issues induces replacing all "black" by "extremely dark grey", which reveal this issue.
More information on mura effect: http://forum.xda-developers.com/showthread.php?t=2108073
- Yellow/greyish tint. This one is'nt the worst, but can be felt on white backgrounds. This one becomes obvious when compared directly to a more natural white screen: the middle of the screen seems more yellowish and darker than the borders. It seems like the glass could be dirty, or tinted by years of heavy usage, which it is not.
None of these issues are obvious to someone who doesn't set his standards very high. They are for me though, and will probably be noticed by people willing to use the tablet in the darkness.
As a bottomline, I actually prefer the display offered by my Nexus 7 or iPad mini retina rather than the Tab S 8.4's. They lack the "wow" effect of vivid colors and the perfect blacks, but provide a more homogenous experience, especially in the darkness.
Now for the performances, I don't know what's wrong with this tab. I was thinking about putting the blame on TouchWiz, but alternative launchers don't help. Rooting and turning off as many services as possible didn't either. Here is what I noticed:
- System zoom effects are subjects to stuttering (opening new app/window, for example). None of my other android device suffers from similar issues, and zooming in other apps such as web browser works flawlessly. The issue is not reliable, and seems to reduce when the same window is opened and closed several times in a row. Memory access issue causing stuttering ?
- Overall system doesn't feel as smooth as it should. Even my elder Note 8.0 feels butter smooth compared to the Tab S 8.4, which I can hardly explain. It is fast enough, but the FPS seems to be lower.
- Two of my favourite apps suffer from low FPS when scrolling: Perfect Viewer and Moon+ Reader. The poor performances make the experience with these apps less enjoyable than on N7 or Note 8, which his hard to explain considering how much more powerful the Tab S 8.4 should be.
- 3D gaming is not at its best either. Performances are clearly below N7, and maybe even lower than on Note 8. There, I guess this is the cost for the extreme pixel density of the display panel.
If you are satisfied with the services offered by your Sony tablet, I'd suggest to stick with it. The Tab S 8.4 is a very decent tablet but not perfect, and its major strenghts are also its main weaknesses.
My 10.5 tablet doubtlessly has the best screen I've ever seen on any device. Sure, a k1 is faster CPU and GPU wise, but for my mainly media consumption and Web browsing it's amazing. Haven't experienced any of the issues mentioned above so I guess pentile does detract a bit.
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ukael said:
I can't compare with the tablet Z, but I own a Tab S 8.4, a Nexus 7 2013 and a Note 8.0. I will try to answer your questions based on my experience:
The tab S 8.4's screen is a huge disappointment to me. It looks awesome in bright environments, the high pitch and vivid colors are pleasant to my eyes. However, for someone with high expectations as I did, it suffers from several issues that used affect previous AMOLED generations and totally ruin my experience:
- Smearing on black backgrounds. An issue that was already reported on Galaxy S4, and that seem to affect Tab S 8.4 as well: A dark red smear is visible when watching movies on black backgrounds. It looks like black pixels are slower at displaying a color than already lit pixels. The result is not obvious on first watch, but once noticed becomes a nightmare in dark movies.
Here is a fix for this issue: http://forum.xda-developers.com/showthread.php?t=2259775
While this seem to be pretty efficient fixing the smearing issue, the result is not perfect, it is rather annoying to use AND we lose the benefits of perfect blacks in the darkness. And it impacts battrery life, as a dark grey pixel is powered, while a black one is not.
- Mura effect. Basically, dark (but not black) colors are not homogenous on the screen. It is only really noticeable in the darkness, wich is my main usage for the tablet. Rather annoying, especially since the fix for the smearing issues induces replacing all "black" by "extremely dark grey", which reveal this issue.
More information on mura effect: http://forum.xda-developers.com/showthread.php?t=2108073
- Yellow/greyish tint. This one is'nt the worst, but can be felt on white backgrounds. This one becomes obvious when compared directly to a more natural white screen: the middle of the screen seems more yellowish and darker than the borders. It seems like the glass could be dirty, or tinted by years of heavy usage, which it is not.
None of these issues are obvious to someone who doesn't set his standards very high. They are for me though, and will probably be noticed by people willing to use the tablet in the darkness.
As a bottomline, I actually prefer the display offered by my Nexus 7 or iPad mini retina rather than the Tab S 8.4's. They lack the "wow" effect of vivid colors and the perfect blacks, but provide a more homogenous experience, especially in the darkness.
Now for the performances, I don't know what's wrong with this tab. I was thinking about putting the blame on TouchWiz, but alternative launchers don't help. Rooting and turning off as many services as possible didn't either. Here is what I noticed:
- System zoom effects are subjects to stuttering (opening new app/window, for example). None of my other android device suffers from similar issues, and zooming in other apps such as web browser works flawlessly. The issue is not reliable, and seems to reduce when the same window is opened and closed several times in a row. Memory access issue causing stuttering ?
- Overall system doesn't feel as smooth as it should. Even my elder Note 8.0 feels butter smooth compared to the Tab S 8.4, which I can hardly explain. It is fast enough, but the FPS seems to be lower.
- Two of my favourite apps suffer from low FPS when scrolling: Perfect Viewer and Moon+ Reader. The poor performances make the experience with these apps less enjoyable than on N7 or Note 8, which his hard to explain considering how much more powerful the Tab S 8.4 should be.
- 3D gaming is not at its best either. Performances are clearly below N7, and maybe even lower than on Note 8. There, I guess this is the cost for the extreme pixel density of the display panel.
If you are satisfied with the services offered by your Sony tablet, I'd suggest to stick with it. The Tab S 8.4 is a very decent tablet but not perfect, and its major strenghts are also its main weaknesses.
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Click to collapse
Your answer was perfect for my needs as my main utility for Tab S would be perfect viewer and moon reader as well.
Reading all sorts of experiences I'm beginning to wonder if I should buy a new tablet or not and it seems that I will rain check this purchase for now...
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since in some country you can like send it back if you not satisfy kind of sale.. and if it apply to you why dont you test it. i dont have any problem like being mentioned above. and in this short period... i think the QC of the device are kind of loopy... some got great functionality without any problem and sadly some does.
Zamboney said:
My 10.5 tablet doubtlessly has the best screen I've ever seen on any device. Sure, a k1 is faster CPU and GPU wise, but for my mainly media consumption and Web browsing it's amazing. Haven't experienced any of the issues mentioned above so I guess pentile does detract a bit.
Sent from my GT-N7000 using Tapatalk 5 alpha
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Regarding the screen, I couldn't find reports about the issues I mentioned above for the Tab S 10.5. It looks like the screen on the 10.5 is using a newer technology that would fixe these issues. I so wish it would be the same for 8.4 !
Not everybody is noticing these issues on 8.4, but then I believe it to be related to lower sensitivity to the issues. They are not obvious at all, and basically impossible to notice in lightened environments and/or watching colored images.
ukael said:
Regarding the screen, I couldn't find reports about the issues I mentioned above for the Tab S 10.5. It looks like the screen on the 10.5 is using a newer technology that would fixe these issues. I so wish it would be the same for 8.4 !
Not everybody is noticing these issues on 8.4, but then I believe it to be related to lower sensitivity to the issues. They are not obvious at all, and basically impossible to notice in lightened environments and/or watching colored images.
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Click to collapse
I'm not having any of the issues you highlighted with the screen. If you have already voided your warranty it would be interesting to see if you have the same issue with my asop build.
Not having any issue with my tab s 8.4 here... love this tablet.. i was a user of nexus 7 2nd gen..
Sent from my SM-T705 using Tapatalk
eousphoros said:
I'm not having any of the issues you highlighted with the screen. If you have already voided your warranty it would be interesting to see if you have the same issue with my asop build.
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Click to collapse
As a newb at flashing roms, I didn't go further than rooting at the moment.
Regarding the screen, while I am surprised that people report not noticing the issues at all, I am convinced many just don't notice them.
The smearing is actually more felt, guessed than seen. But once noticed, it becomes an annoyance.
The green/yellow tint is only visible on white backgrounds and when comparing to other screens or looking at it for a duration (reading e-books or internet webpages). It's far from being obvious on first sight.
The Mura effect however should become obvious to anyone looking for it. You can try with the follwing steps:
- Download and install screen adjuster.
- Get in the complete darkness
- Launch Screen adjuster, and set Red, Green and Blue to +5. Make sure it's switched on
- Look at a completely black background
=> The black background won't be black anymore but very dark grey. This is what Screen adjuster did by adding +5 in each color. If the screen is affected by mura effect, some areas will be lighter grey and others darker.
This is an issue that affects the 3 tab S 8.4 I tried (I exchanged it twice), as well as my Galaxy SII and my PS Vita. I just wish it wouldn't be the case, but I have yet to see an amoled display that isn't affected, and can hardly beleive I would be cursed badly enough to always get faulty units.
No issues on mine. The screen is superlative!
ukael said:
As a newb at flashing roms, I didn't go further than rooting at the moment.
Regarding the screen, while I am surprised that people report not noticing the issues at all, I am convinced many just don't notice them.
The smearing is actually more felt, guessed than seen. But once noticed, it becomes an annoyance.
The green/yellow tint is only visible on white backgrounds and when comparing to other screens or looking at it for a duration (reading e-books or internet webpages). It's far from being obvious on first sight.
The Mura effect however should become obvious to anyone looking for it. You can try with the follwing steps:
- Download and install screen adjuster.
- Get in the complete darkness
- Launch Screen adjuster, and set Red, Green and Blue to +5. Make sure it's switched on
- Look at a completely black background
=> The black background won't be black anymore but very dark grey. This is what Screen adjuster did by adding +5 in each color. If the screen is affected by mura effect, some areas will be lighter grey and others darker.
This is an issue that affects the 3 tab S 8.4 I tried (I exchanged it twice), as well as my Galaxy SII and my PS Vita. I just wish it wouldn't be the case, but I have yet to see an amoled display that isn't affected, and can hardly beleive I would be cursed badly enough to always get faulty units.
Click to expand...
Click to collapse
I've already tested mine T800 for mura with many shades of grey and no issues found.
Zamboney said:
I've already tested mine T800 for mura with many shades of grey and no issues found.
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Click to collapse
Yes, from my readings here and there, T800 screens whouldn't suffer from the same issues. They use a different technology though, I wish T700 would be using the same.
yes. me too.
"ukael" is right.
I had this problem on my both two Samsung Tab S 8.4 LTE T705.
on first I thought it is related to that one, but after purchased 2nd Tab S 8.4 T705, I noticed screen going yellowish.
specially in middle screen while in horizontal rotate specially reading something that has white background.
prssdghrzmhmd said:
yes. me too.
"ukael" is right.
I had this problem on my both two Samsung Tab S 8.4 LTE T705.
on first I thought it is related to that one, but after purchased 2nd Tab S 8.4 T705, I noticed screen going yellowish.
specially in middle screen while in horizontal rotate specially reading something that has white background.
Click to expand...
Click to collapse
Do you realize you replied to a thread from August 2014? LOL.
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I have a8 2018 and am thinking of getting a70 but i am not sure is it worth it?
biggest dissapointment of a8 is how slippery it is, edges of the phone are a disaster and with glass fingerprinty back theres no way to survive without case
other stuff was/is fine i guess, screen, cameras all ok, especialy selfie cam. altho camera app quite slow..
anyone had a8 or tired that can compare it to a70?
i know the specs but whats on the paper dont usually tell the whole story
bigger battery is nice
bigger screen also but is it as good or better?
i know the back is slippery but how are the edges when holding it ?
cameras better or worse?
how does gps work?
how is overall speed of the phone?
thanks
Screen is big and beautiful but it's not well made, so there's the touch issue, where the screen response latency is a little delayed so it's gonna be a nightmare doing stuff that require precession on this device, such as drawing or playing games that require aiming. Check:
Also tho the screen is beautiful, it has an issue where it turns off pixels that are supposed to be dark. So while watching something with a dark atmosphere, most of the time you're not gonna be able to know what part is pitch black, and what part is just darker than the rest. People don't usually notice this issue but I did notice it because I used my brother's A50 for a while and this issue isn't present on it. The issue with touch response latency isn't present on the A50 either.
The Snapdragon 675 isn't optimized by most games so you're gonna struggle with lag in games like PUBG and Asphalt and COD. The Exynos used on the A50 is optimized, tho. And by using the A50, I can clearly see how much of an advantage optimization gives to gaming.
There A70 isn't slippery, I use it without a cover, so that's a plus. I've dropped it a couple of times but there was no effect. The A50 isn't slippery either.
And that's about it. I'm gonna sell my A70 and get an A50, or I'm gonna check the A51 after it gets released. If it doesn't have the issues mentioned here, then it's gonna be a great device with a great screen.
PS: I'm not a hater, I'm just a user that's honest. I love Samsung, but the A70 just isn't good enough to be sold to millions as it is. The A50 is better imo. Good luck mate.
I personally haven't noticed any big touch issues. The only time the display seems finicky is of my hands are sweaty or have water on them, which is pretty normal, (although I did notice this happening more on this device than my previous device). I don't know what to say on the black levels of the device since I've never noticed any problems, but it could be possible. As for games, PUBG and COD run just fine for me on med-high settings, but I did notice that asphalt 9 didn't feel very smooth, 8 for whatever reason is A-okay though, so I do think that this chipset hasn't been fully optimised for all games, but I don't think you'll have many issues.
If you're now deciding between a50 vs a70, then here's the basic differences, you decide if it's worth it.
-A50 has a better GPU, but a70 has stronger CPU
-A70 has larger screen, but both have same resolution (I.e. 1080p)
-A70 has more storage(128gb), and RAM (6gb), and while the A50 has that too, I haven't seen that model being sold anywhere online (at least in NA).
-A70 has a bigger batter and a faster charger
-A50 stock camera doesn't support 4k (could be wrong as they could have pushed out an update for this)
-A50 is cheaper
They're both good phones tbh, I don't think you'll regret either as long as you weigh the pros and cons. Hope this helps!
SniperLolz said:
Also tho the screen is beautiful, it has an issue where it turns off pixels that are supposed to be dark. So while watching something with a dark atmosphere, most of the time you're not gonna be able to know what part is pitch black, and what part is just darker than the rest. People don't usually notice this issue but I did notice it because I used my brother's A50 for a while and this issue isn't present on it.
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Click to collapse
STOP peddling that nonsense. That is an issue with the lock screen ONLY. it is not a hardware issue and it doesn't affect anything other than the lockscreen. I don't know how many times i have to say that for you to listen.
James.Miller said:
STOP peddling that nonsense. That is an issue with the lock screen ONLY. it is not a hardware issue and it doesn't affect anything other than the lockscreen. I don't know how many times i have to say that for you to listen.
Click to expand...
Click to collapse
Look dude, I wouldn't talk about it if it wasn't there. You're just not noticing it because you've never put this device side to side with an A50 or a flagship and compared the displays. If I only had this device I wouldn't know that there are dark parts that I'm missing because the pixels are turned off instead of being dimmed. I only knew that because I watch my stuff on multiple devices, which means that I can notice it when a device has an issue with it's display.
+ If I'm still talking about an issue that you've previously addressed to me, then either I'm an idiot or the issue is indeed there. You're free to think of me as in idiot, but for me, the issue IS there, and I will showcase it later by doing a comparison between the A50's and the A70's displays.
PS: I'm not talking about the polarization on the lock screen. I know that that's a bug that only happens on the lock screen, that's why I'm not taking about it.
SniperLolz said:
You're just not noticing it because you've never put this device side to side with an A50 or a flagship and compared the displays.
Click to expand...
Click to collapse
Massive assumptions aside, My last phone was a S8. That's all I really need to say.
+ If I'm still talking about an issue that you've previously addressed to me, then either I'm an idiot or the issue is indeed there. You're free to think of me as in idiot, but for me, the issue IS there, and I will showcase it later by doing a comparison between the A50's and the A70's displays.
Click to expand...
Click to collapse
Please do. Looking forward to it.
I don't remember how it was on original KitKat 4.4 version but neither my last rom (CyanogenMod 12.1 android 5.1) nor the one I installed yesterday (LineageOS 17.1, android 10 which works pretty great) seem to have the ability to turn the black pixels off.
No matter how black the picture is, there is always some light being emitted. Although to much smaller extent than an LCD display. Could this be an software issue or is the hardware just not capable of doing it? It's OLED, isn't that what it's supposed to do? Have any of you guys experienced the pixel off thing?
I noticed the same while flashing ROMs on that thing in the dark. When it reboots you can notice some sort of backlight turn off and when it starts booting that little bit of backlight turns on again. It isn't noticeable at all in daylight. Not sure but my opinion is that it is indeed an AMOLED and the technology is just old for its age and doesn't compare with newer flagships.
testwe4 said:
my opinion is that it is indeed an AMOLED and the technology is just old for its age and doesn't compare with newer flagships.
Click to expand...
Click to collapse
But that's the thing, OLED literally is a technology where there's no backlight like LCD. All pixels light up individually. So there's no reason for whole screen to light up when there are some pixels who are supposed to be pure black.
I still think it could just be the software that's stopping screen from displaying fully black colours, but I am not exactly sure either. Maybe someone knowledgeable in this field could clear it up.
It's definitely OLED, the original ROM did not turn off the pixels correctly, but I'm using LOS 16 stable and it does turn off pixels. Also, since the phone is getting old I'm starting to see burn-in in the notification bar, so that definitely confirms it's OLED, just not as good as today's screens.
thefpspower said:
It's definitely OLED, the original ROM did not turn off the pixels correctly, but I'm using LOS 16 stable and it does turn off pixels.
Click to expand...
Click to collapse
Interesting, but are you absolutely sure about that? Can you got into a dark room and trying watching a pitch black image in full screen? You can then lock the screen to notice any difference. Because in my experience it doesn't turn completely off.
And I've experienced absolutely no burn in, although that could be due to me not using phone that much but it's still strange.
redblur07 said:
Interesting, but are you absolutely sure about that? Can you got into a dark room and trying watching a pitch black image in full screen? You can then lock the screen to notice any difference. Because in my experience it doesn't turn completely off.
And I've experienced absolutely no burn in, although that could be due to me not using phone that much but it's still strange.
Click to expand...
Click to collapse
Yep, just did it to confirm, it's actually black.
Here's a video of it, unfortunately I had to convert to a lower bitrate as you'd be able to see the burn-in on the top where the status bar goes and blacks would be a bit black but trust me, it's absolutely off and it's OLED.
After a bit of Googling I came to know that this is a common problem of OLED screen, but it's really annoying.
Oddly, my friend's Galaxy A31 (which has a Super Amoled screen) doesn't have this problem.
I used the Screen Balance app, it was less visible but still there.
Would this be fully fixed through OTA updates by Xiaomi? Cuz I really like this phone and just bought it for only a week.
So I finally got my f3, it has been perfect in every aspect, even the screen looks good, but the eye fatigue is simply too much.
I have tried to reduce DPI to minimum, reduce brightness, use reading + paper mode. After these changes it did get noticeably better, but it is still annoying.
I have Samsung galaxy s5 that also has an amoled display, but I don't get the same issue there. Also regular laptop and computer monitors are fine.
So anything to do on the software side to make it better? If not, then what other similar phone would you recommend that has a different screen.
Have you tried enabling DC dimming? For some people (not everyone) the PWM flickering causes some discomfort. I can't see any difference, but I'm glad the option is there.
gondsman said:
Have you tried enabling DC dimming? For some people (not everyone) the PWM flickering causes some discomfort. I can't see any difference, but I'm glad the option is there.
Click to expand...
Click to collapse
F3 does not have DC dimming.
The option is there on custom roms, I assumed it was available on stock as well.
Do you know why you have eye fatique? What's the problem?
dreamytom said:
Do you know why you have eye fatique? What's the problem?
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Click to collapse
The text and screen looks somehow muddy compared to LCD screen. Text is not as sharp, or at least eyes feel so, and it is harder to focus to text and objects.
Yes, the screen looks impressive, but can't really use it.
LCD screens are always sharper than their OLED counterparts, but hey there might be a slight problem with your eyes or maybe you've got sensitive eyes. therefore, I can only suggest that you get an LCD device or test an oled before buying. btw I have no problem with the panel even though I prefer LCD panels (no burn in issues in LCDs etc.).
there is still one small thing that I have noticed, there a very slight white line/shadow under the black text and it's more noticeable when the text is bigger like when Im in settings, all the titles or texts seem to have that white shadow under them. Has any of you noticed that? I might make a thread for it later but I just dont care. the screen is waaaay better than my last OLED which was ROG phone 2 with red tint and huge bandings and awful black crush issues...
Kianush said:
LCD screens are always sharper than their OLED counterparts, but hey there might be a slight problem with your eyes or maybe you've got sensitive eyes. therefore, I can only suggest that you get an LCD device or test an oled before buying. btw I have no problem with the panel even though I prefer LCD panels (no burn in issues in LCDs etc.).
there is still one small thing that I have noticed, there a very slight white line/shadow under the black text and it's more noticeable when the text is bigger like when Im in settings, all the titles or texts seem to have that white shadow under them. Has any of you noticed that? I might make a thread for it later but I just dont care. the screen is waaaay better than my last OLED which was ROG phone 2 with red tint and huge bandings and awful black crush issues...
Click to expand...
Click to collapse
I personally use Syberia and have no problems with shadows under text.
Thankfully, I don't have eye strain.
Never had a problem on my end you might want to bust some glasses