Pixel Density: 160 vs 132 - Small or big difference?? - Android Q&A, Help & Troubleshooting

Hi guys,
I currently have a 9.7 inch ICS tablet which has a pixel density of 132, just like ipad 1 & 2. I thought it was not that bad until I got a phone with pretty high ppi (HTC One V), and now it suddenly makes my tablet look so cheap when I look at it. So I would like a tablet with higher ppi, and I thought how about an 8 inch tablet with 1024 x 768 resolution? So I tried the ppi calculation online, and it gave me 160. are 160ppi and 132 ppi a big difference in text sharpness? Currently, on my 9.7 tablet, even the blue digital clock in the status bar is somewhat pixelated.
Also I like to use 4:3 tablet in a portrait mode only, so when I'm web browsing with my 9.7 inch tablet in portrait mode, some small texts are kind of readable, BUT uncomfortably... like you can go on Yahoo desktop website in portrait mode, and try to make out the smallest text in that website, and it's kind of garbled looking. So I was wondering, IF PPI is higher, EVEN THOUGH the screen is smaller, will that make the texts sharper for the same webpages? If I had both 8 inch and 9.7 tablets, I could test it out, but I don't, so I need expert's knowledge..
Also, 8 inch tablet is cheaper and lighter than 9.7 or 10.1 tablets so I am considering this option more now.
Please answer my questions above!
Thank you.

Don't get too star struck, htc devices are meant to beautiful and only other htc devices can give you that premium look and feel, ( no company tops htc in the beauty department). My htc sensation resolution is 540×960 and has a 256 pixel density and 240 dpi. It come down to the quality of your tablet, by increasing your dpi (almost like zooming in) you will see more pixels (BAD!), but you will see the difference is you increase the ppi, however it depends on your display. Right now the top android phones (htc one s/v and sgs2 & 3 and etc) have better displays than tablets and those 7 to 8 inch tablets aren't recommended also. They are build to be budget friendly and the display quality won't be too good either. Maybe you should get a better android tablet (asus transformer prime the BEST) or iPad+Retina Display= Big Smile

Related

[Q] Difference between a 9.4 inch screen and a 10.1 inch screen?

I know this sounds like quite a simple question with an obvious answer, but numbers alone can't really give you a proper idea of what the screen size will be like. Sony Tablet S has a slightly smaller screen than other tablets, and at the moment it's stopping me from making a purchase. Is it noticeably smaller than a 10.1 inch screen? Does the slightly smaller screen make much of a difference when web browsing or editing Word docs or viewing PDFs? And is it much of a step up from the 8 inch screen?
Also, if anyone can suggest a 10.1 inch tablet that meets my needs (3G, USB host on board, priced competitively!), that would be great. The Sony Tablet S is currently £386.56 on Amazon.co.uk, just to give an idea of what price range I am looking at, and I was also considering the Acer Iconia A501 but I'm not so sure that the screen is as good as the Sony tablet's, from what I recall.

Reference phone (LG Nexus) resolution changed too quickly?

The Nexus One and Nexus S both had the same resolution (800 x 480) which makes sense for a reference device as having a stable target for UI / display is beneficial to developers. It allows them to acclimate to a certain resolution to produce the best looking apps available. They seem to have ditched tradition (and sensibility) by going from 1280 x 720 to 768 in a year, different resolution, different aspect ratio.
Personally I find that there isn't enough vertical resolution what with the navbar and status bar so it all seems kind of silly.
Perhaps Google is going to do something new with the increased lateral resolution?
I am not a developer so correct me if I am wrong, but doesn't the android SDK have some sort of implementation that makes apps compatible with a lot of screen sizes and resolution? So I don't think changing the resolution will matter so much.

Nexus 10 vs Xperia Tablet Z

Hey guys this is a detailed list, the Xperia Z was just announced so going of GSMarena specs, if there are any errors plz correct the list, thanks!
Nexus 10
Higher resolution
Higher PPI
Wi-Fi Direct?
Direct updates
Stock Android
More Ergonomic? (rubber rounded back)
Xperia z tab
LTE/4G
Lighter
Thinner
Premium Design
Dust proof
Water proof
S-Force surround sound
microSD
Wi-Fi hotpot
Infrared port
Blutooth 4.0
8mp camera
LED flash
2.2 front camera
cyprusx said:
Hey guys this is a detailed list, the Xperia Z was just announced so going of GSMarena specs, if there are any errors plz correct the list, thanks!
Nexus 10
Higher resolution
Higher PPI
Wi-Fi Direct?
Direct updates
Stock Android
More Ergonomic? (rubber rounded back)
Xperia z tab
LTE/4G
Lighter
Thinner
Premium Design
Dust proof
Water proof
S-Force surround sound
microSD
Wi-Fi hotpot
Infrared port
Blutooth 4.0
8mp camera
LED flash
2.2 front camera
Click to expand...
Click to collapse
Xperia Z for me please!
Sent from my LG-P990 using xda app-developers app
Will have better colors on the Z tablet
I don't think the price will be the same :fingers-crossed: and it's not gonna get updated that fast
cyprusx said:
Hey guys this is a detailed list, the Xperia Z was just announced so going of GSMarena specs, if there are any errors plz correct the list, thanks!
Nexus 10
Higher resolution
Higher PPI
Wi-Fi Direct?
Direct updates
Stock Android
More Ergonomic? (rubber rounded back)
Xperia z tab
LTE/4G
Lighter
Thinner
Premium Design
Dust proof
Water proof
S-Force surround sound
microSD
Wi-Fi hotpot
Infrared port
Blutooth 4.0
8mp camera
LED flash
2.2 front camera
Click to expand...
Click to collapse
N10 has LED flash as well, and 4.0 bluetooth.
Sent from my Nexus 10 using xda app-developers app
The resolution on the XZ is better than the N10 because it's more practical. At 10+ inches away you won't see the difference in PPI between the two displays. And the lower resolution (but still FHD) display will use less CPU/GPU power and battery. Speaking of battery, 6,000 mAh is pretty small for a 10.1" tablet with a S4 Pro CPU and FHD display. That could be the XZ's Achilles Heal. The rest of the specs are indeed impressive.
Stock Android and stock Nexus are so good and at such a low price that they will keep me happy whilst I receive the timely Android updates
Naturally, a newer tablet will be better than an older tablet at least hardware wise or else it wouldn't sell.
That said, the Xperia Tablet Z will probably do better than the Nexus 10 in probably almost all aspects except development, text clarity, and possibly line-out (headphone) sound quality. Image clarity and such is much better suited for a 1080p screen unless there is a sudden surge and revolution of 1440p+ displays in this coming year.
ady_seray said:
N10 has LED flash as well, and 4.0 bluetooth.
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
According to numerous sources and GSMarena the nexus 10 has 3.0
If I need 4G/LTE, I'll just tether it to my Verizon phone I already have.
Otherwise, I see nothing in that list which would cause me to jump ship or even give a second thought about.
More than happy with the design and engineering on the N10.
404 ERROR said:
Naturally, a newer tablet will be better than an older tablet at least hardware wise or else it wouldn't sell.
That said, the Xperia Tablet Z will probably do better than the Nexus 10 in probably almost all aspects except development, text clarity, and possibly line-out (headphone) sound quality. Image clarity and such is much better suited for a 1080p screen unless there is a sudden surge and revolution of 1440p+ displays in this coming year.
Click to expand...
Click to collapse
There's a similar debate about the value of PPI going on in the DNA forums. It matters less than you think. This is from that discussion...
BarryH_GEG said:
The biggest discussion point for newer devices like the N10 and now the DNA/Butterfly are their awesome displays. The thing people lose sight of (no pun intended) is that the human eye is only capable of processing and resolving images at a certain level. Any detail beyond that level is literally wasted. The 20/20 human eye has a maximum visual acuity of 1 arcminute. That is, two points must subtend an angle greater than 1 arcminute in order for a 20/20 eye to resolve the two points. What this means for displays is that pixels must have an angular subtense of 1 arcminute or greater in order for your eye to resolve the detail in the content. Detail below 1 arcminute isn't perceived by the human eye any differently whether a display has 267 PPI or 441 PPI. This is the reason Apple landed on the resolution they did hence the name "retina display." For example, the N2 has an arcminute subtense of 1.073 arcminutes which is nearly perfect and it has a PPI of 267. The DNA has an acrminute subtense of .66 and PPI of 441 which is a waste because anything below "1" can't be resolved by the human eye.
So super high definition displays are more a marketing gimmick, draw more CPU power, and drain the battery faster with the end result being your eyes won't notice any difference. I don't know what the exact numbers are for the Note and N10 but at 147 PPI the Note's above 1 arcminute and at 299 PPI the N10's below it. So you'll notice a difference on text and CGI (but not images and video) but it's not as pronounced as some people here have said unless they have super-human vision. And with the new fixation on resolution things like brightness, contrast, and color accuracy get swept under the rug because all people are focusing on is a PPI count rather than the actual quality of the display. In those areas the Note’s display outperforms the N10’s. And the 1080P display on the DNA isn’t as good in those areas as the 720P display on the One X it's supposedly better than. Remember that when you're salivating over a 441 PPI 1080P smartphone that’s going to be hyped to death this year.
Click to expand...
Click to collapse
orangechoochoo said:
I bet if the Note2 had a 1080 screen owners would brag about it instead of saying that you can't tell the difference. If we cannot discern the difference between 720 and 1080 way is the S4 and other phones coming out with 1080 since it makes no difference?
Click to expand...
Click to collapse
BarryH_GEG said:
You realize that with the human eye being the lowest common denominator the selection of PPI is being done ass backwards? Deciding on the optimum PPI for any given device should be an arithmatec equation; not manufacturers arbitrarily pulling numbers our of thier butts to out-feature each other. The above posts that talk about what the human eye can process are irrefutable fact. With an arcminute of "1" ideal for the human eye to process detail, the manufacturers should pick the lowest PPI that acheives "1" arcminute at 10-12" away which is the typical distance a smartphone is viewed. Why the lowest? Because the higher the PPI the bigger the drain on the battery, GPU, and CPU. And why reduce the performance of a device when the end result is the human eye can't process the additional detail being provided anyway? In addition, to achieve higher PPI, displays are suffering in brightness, contrast, and color reproduction. But nobody cares because they get to tell their friends "look, I've got a 1080P display!" Based on the numbers, outside of PPI, the One X has a better display than the DNA. It wouldn't surprise me if the same thing happened between the SGS3's 720P display and the SGS4's 1080P display (unless SAMOLED scales differently). In the end none of this matters because whether it makes sense or not we're all going to end up with 1080P displays one way or the other because that's where manufacturer's marketing is taking us.
Click to expand...
Click to collapse
And this is a good article explaining why pics and videos won't seem any sharper on a 720P, 1080P, or the N10's unique resolution display. And everything gets upscaled on the N10 which doesn't help with detail and image quality.
For most people, though, it won't matter. Photos are inherently fuzzy, so it won’t matter whether they’re viewed on a 1920×1080 or 1280×720 smartphone display; you’ll still see their imperfections. "Even the tiniest image detail in a photograph is always spread over more than one pixel," Dr. Soneira explained in a follow-up e-mail. "The image detail is never perfectly aligned with the pixel structure of the display." Videos are even worse: not only are they fuzzy like photographs, but the pictures are constantly moving. Even if the images were sharp, the human brain couldn’t zero in on content that’s appearing for only a fraction of a second on such a small display. "For ordinary viewing of videos, 1920×1080 is really not going to make a visual difference," adds Dr. Soneira.​
http://arstechnica.com/gadgets/2012/10/1080p-on-a-smartphone-screencan-it-possibly-matter/
I skimmed through your post and I apologize beforehand if I'm missing some nuances in your post, but I think you misread my post completely. The only thing that can really make use of a 1440p screen at this moment is text which is why I mentioned "text clarity." It is also why I said, if there is a sudden surge of 1440p displays, the N10's high resolution will be better than 1080p. This is simply because 1080p displays will be considered old tech and designers and such will move on to support 1440p displays. The chances of 1440p being adopted to be the standard this year is probably 0%.
I never said it mattered. In fact I always thought PPI is a gimmick and will always be a gimmick beyond 220ish.
Also, just to put it out there, I maintain a theme to up-res the icons on the N10 so those icons don't get upscaled; I'm pretty sure I know what drawbacks there are with having such a high resolution screen.
Another thing - you talk about image quality, but you quote someone talking about photos. Things that are drawn on a computer will be clearer than a photo by a long shot. Those types of images can take advantage of such a high resolution screen. Photography on the other hand really doesn't matter what resolution you view it on for the reason you quoted.
404 ERROR said:
The only thing that can really make use of a 1440p screen at this moment is text.
Click to expand...
Click to collapse
I just threw that info out there because I thought people would find it interesting; it wasn't directed at you per se. And at 10" away text won't look any better on the N10 than it would on the XZ. And that has nothing to do with the display's themselves, it's all about why the human eye can discern. As an example, at that distance, text looks no worse on the N2's 720P display than it does on the DNA's 1080P display based solely on the N2's ability to achieve a subtense of 1 arcmiture at 267PPI. Only if the N10's display is closer to 1 arcminute (below it doesn't matter) than the NZ's would you notice a difference. Now if you hold it 5" away or look at it under a microscope you'll see a difference.
BarryH_GEG said:
I just threw that info out there because I thought people would find it interesting; it wasn't directed at you per se. And at 10" away text won't look any better on the N10 than it would on the XZ. And that has nothing to do with the display's themselves, it's all about why the human eye can discern. As an example, at that distance, text looks no worse on the N2's 720P display than it does on the DNA's 1080P display based solely on the N2's ability to achieve a subtense of 1 arcmiture at 267PPI. Only if the N10's display is closer to 1 arcminute (below it doesn't matter) than the NZ's would you notice a difference. Now if you hold it 5" away or look at it under a microscope you'll see a difference.
Click to expand...
Click to collapse
You're right in that if you hold it 10" away you won't see a difference. Unfortunately not all people do and there will always be people who can discern that difference.
I am also considering the Xperia Z tablet against the Nexus 10, here's a better comparison (taken from GSMArena).
Nexus 10
General 2G Network N/A
SIM No
Body Dimensions 263.9 x 177.6 x 8.9 mm (10.39 x 6.99 x 0.35 in)
Weight 603 g (1.33 lb)
Display Type Super PLS TFT capacitive touchscreen, 16M colors
Size 2560 x 1600 pixels, 10.1 inches (~299 ppi pixel density)
Multitouch Yes
Protection Corning Gorilla Glass 2
Sound Alert types N/A
Loudspeaker Yes, with stereo speakers
3.5mm jack Yes
Memory Card slot No
Internal 16/32 GB, 2 GB RAM
Data GPRS No
EDGE No
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA
Bluetooth Yes, v3.0 with A2DP
NFC Yes, dual side
USB Yes, microUSB v2.0
Camera Primary 5 MP, 2592х1936 pixels, autofocus, LED flash, check quality
Features Geo-tagging, touch focus, face detection
Video Yes, [email protected], check quality
Secondary Yes, 1.9 MP
Features OS Android OS, v4.2 (Jelly Bean), upgradable to v4.2.1 (Jelly Bean)
Chipset Exynos 5250
CPU Dual-core 1.7 GHz Cortex-A15
GPU Mali-T604
Sensors Accelerometer, gyro, proximity, compass, barometer
Messaging Email, Push Email, IM, RSS
Browser HTML5
Radio No
GPS Yes, with GLONASS
Java No
Colors Black
- SNS integration
- HDMI port
- MP4/H.264/DivX/WMV player
- MP3/WAV/eAAC+/WMA/Flac player
- Organizer
- Image/video editor
- Document viewer
- Google Search, Maps, Gmail,
YouTube, Calendar, Google Talk, Picasa
- Voice memo
- Predictive text input (Swype)
Battery Non-removable Li-Po 9000 mAh battery
Stand-by Up to 500 h
Talk time Up to 9 h (multimedia)
Misc SAR US 1.38 W/kg (body)
SAR EU 0.21 W/kg (body)
Price group [About 310 EUR]
Tests Display Contrast ratio: 878 (nominal)
Loudspeaker Voice 68dB / Noise 66dB / Ring 67dB
Audio quality Noise -82.3dB / Crosstalk -81.4dB
Camera Photo / Video
Xperia Z Tablet
General 2G Network
3G Network HSDPA 850 / 2100 / 800
4G Network LTE 1800 / 1500 / 2100
SIM Micro-SIM
Announced 2013, January
Status Coming soon. Exp. release 2013, Q1
Body Dimensions 266 x 172 x 6.9 mm (10.47 x 6.77 x 0.27 in)
Weight 495 g (1.09 lb)
- IP57 certified - dust and water proof
Display Type LED-backlit LCD, capacitive touchscreen, 16M colors
Size 1200 x 1920 pixels, 10.1 inches (~224 ppi pixel density)
Multitouch Yes
- Sony Mobile BRAVIA Engine 2
Sound Alert types N\A
Loudspeaker Yes, with stereo speakers
3.5mm jack Yes
- 3D surround sound enhancement
Memory Card slot microSD, up to 64 GB
Internal 32 GB storage, 2 GB RAM
Data GPRS No
EDGE No
Speed HSDPA, 14.4 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 37.5 Mbps UL, 100 Mbps DL
WLAN Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi hotspot
Bluetooth Yes, v4.0 with A2DP
NFC Yes
USB Yes, v2.0
Camera Primary 8 MP, 3264x2448 pixels, autofocus
Features Geo-tagging, touch focus, face detection
Video Yes, [email protected]
Secondary Yes, 2.2 MP, [email protected]
Features OS Android OS, v4.1.2 (Jelly Bean), planned upgrade to v4.2 (Jelly Bean)
Chipset Qualcomm Snapdragon APQ8064
CPU Quad-core 1.5 GHz Krait
GPU Adreno 320
Sensors Accelerometer, gyro, compass
Messaging Email, Push Mail, IM, RSS
Browser HTML
Radio No
GPS Yes
Java Yes, via Java MIDP emulator
Colors Black, White
- SNS integration
- MP4/H.264/H.263 player
- MP3/WAV/eAAC+ player
- Organizer
- Document viewer
- Photo viewer/editor
- Voice memo
- Predictive text input
Battery Non-removable Li-Po 6000 mAh battery
If it was $399.99 and battery didn't suck I would probably get it. It also depends on whether or not I sell my Nexus 4 for a Xperia Z. My tablet will match my phone. Lol
Also depends on which is available in Canada first. More nexus 10 shipments or the the Xperia Z tablet in Canada
I also wish that they stuck with the 9.4 inch screen of their older models.
Tablet Z will be at least 100$ more so yeah.
Sent from my SGH-T999 using xda premium
299ppi>224ppi. I can see a big difference between 299 and 224 ppi. I prefer the nexus 10. I want 4k on 10".
lKBZl said:
and it's not gonna get updated that fast
Click to expand...
Click to collapse
Sony is one of the most AOSP friendly manufactures out there so I doubt it. I am a Nexus guy for life but Sony builds some quality stuff and are good with updates. As fast as Nexus no, but they won't Samsung it and sit on an update for a year and update it at the same time Google releases that versions replacement.
rookiegenius said:
Tablet Z will be at least 100$ more so yeah.
Click to expand...
Click to collapse
The upper-bound threshold's been set by the Note 10.1 (32GB $549), N10 (32GB $499), and TF700 (32GB $499). So with 32GB of storage the Xperia Z won't be more than $499 (the Note gets away with more because of S Pen). If Sony's smart they'll price it at $449 to gain some traction in the market. Asus only sold 250K 10.1" tablets a month in Q3 and the TF300 had a MSRP of $349. High-end Android tablets just don't sell well. The Note 10.1 was selling a million a month in Q3 so that makes it an exception. We'll see if that run rate continued in to Q4 when analysts disect Samsung's earnings. Also keep in mind that the specs shown are for the Japanese market Xperia Z. The global and U.S versions could be different. And until something's confirmed at MWC next month we don't even know for sure if there will be global and U.S. versions.

[Review] The HD Dilemma

I thought this was very interesting, somewhat common sense to some of us geeks/nerds/smarties out there, and worth a share.
Origin: http://blogs.tribune.com.pk/story/16554/is-the-samsung-galaxy-s4-really-worth-it/
Despite the amazing features in recent mobile phones that include, high speed quad core processors, large screen sizes, high-fidelity Graphic Processing Units (GPUs) and innovative designs, the mobile phones manufacturers are desperately trying to surpass each other.
A number of marketing tactics are being used to get us all excited, and persuade us to upgrade our phones.
Due to the tremendous advancements in hardware and software technology and the challenges posed by a very competitive market, the smart phone manufacturers are left only with the screen resolution to boast about and as an immediate eye-catching feature for a potential upgrade.
Samsung is already making a big deal about the full High Definition (HD) resolution of its Galaxy S4 introduced this month. Although the S4 is not the first phone to be equipped with an HD resolution, the terrific success of the S2 and S3 makes it an appealing get-as-soon-as-possible feature for Galaxy lovers.
If you are charmed by the HD resolution and intend on throwing extra money to upgrade your phone to S4, let us first analyse if a full HD smart phone screen is really worth draining your wallet.
Resolution is the prime determinant of a screen’s clarity. HD resolution refers to a High Definition screen having either 1280 x 720 pixels (720p) or 1920 x 1080 pixels (1080p/full-HD) spread along the width and height of the smart phone’s screen.
The pixel is the elementary area of illumination on the screen. The image displayed is composed of pixels. Therefore, higher the number of pixels, the sharper and crisper an image appears on the screen.
For an immediate comparison, you can check the resolution of your old smart phone (For example a Nokia 6600, 176 x 208 pixels) and that of a recent smart phone (like the Samsung Galaxy S3, 720 x 1280 pixels). You will immediately notice that the high resolution produces a much clearer and sharper image.
Nevertheless, resolution is not the only factor responsible for a sharper screen. Keeping the resolution the same and increasing the screen’s size separates the pixels, thus resulting in lost sharpness.
What really matters for determining a screen’s quality is the number of pixels packed in a given area. The term Pixel Per Inch (PPI) represents how many pixels there are in one inch of a screen’s area; the larger the number, the better the screen’s quality.
As an example, Nokia 6600 launched in 2003 has a PPI density of 130, whereas, Apple’s iPhone 4, sensationalised and marketed by the brand name Retina Display, has a PPI of 330. This produces a much sharper and vibrant image on the screen and makes other older phones look lacklustre.
Increasing the resolution does increase the PPI, provided that the screen size is not increased significantly. Two smart phones having the same screen sizes but different resolutions will have different figures for PPI.
Does it mean increasing the PPI indefinitely will produce even sharper images on the screen? The answer is no.
Our eyes can determine the quality of the contents on a screen if the pixels are distinguishable at the normal viewing distance. The reason why Apple called their iPhone 4 screen ‘Retina Display’ was that the 326 PPI pixel density was so high that individual pixels were indistinguishable to the human eye at the normal viewing distance. However, Retina Display is no longer an industry-leading figure.
HTC was one of the companies to develop a display beating that of the iPhone 4 with HTC Rezound (342 PPI). Nevertheless, if you compare the screens of Iphone 4 and HTC Rezound, I can bet you won’t be able to tell the difference.
The reason is that the human eye cannot distinguish the difference in PPI when the figure reaches a saturation point of about 300 (slightly exaggerated, otherwise some studies suggest a threshold of 250 PPI). Therefore, having a PPI of more than 300 will not make any difference to normal human eye unless you use a magnifying glass or have the screen pressed up against your eyeballs to see the subtle difference (of course you don’t want to do that).
Even for people with 20/20 vision, a full HD resolution would be a waste because most people’s eye can’t resolve sharpness above 250 PPI. The same goes for observing the photos quality. The pixel details in a photograph is always spread over more than one pixel and never perfectly aligned with the pixel structure of the display. So it will not matter whether you view the photographs on a 1080p or 720p display; they will appear the same. If you come across a smart phone having a PPI above 350, safely take it as a marketing stunt. It is not going to make the smart phone’s screen any sharper.
Consequently, a full HD (1080p) resolution is no better looking than 720p resolution in smart phones. A full HD resolution is only better for tablets, laptop screens, or monitors where the human eyes can resolve such a high resolution. The smart phones having 720p resolutions and sizes ranging from 4.3 to 4.7 inches have PPIs within the range 312 to 341. This PPI range is more than enough. Therefore, Samsung’s claim to give a sensational screen experience is pretty pompous.
Whereas, a full HD resolution necessitates using larger screen size (at least 5 inches) which is pretty annoying for small-sized phones lovers.
Another issue is the increased power consumption. The extra features in electronic devices don’t come for free. The price usually has to be paid in terms of high power consumption. A full HD display makes more demand from the processor and the GPU, which in turn needs more power to help it cope.
Although, the S4 has much improved battery (2600 mAh) as compared to the S3 (2100 mAh), it is still not sure if we can get improved battery life as well. We must not forget that the Apple iPad 4′s screen has a higher than 1080p resolution (2048 x 1536, but a PPI of 264), and a battery rated as 11666 mAh, while the iPad2 has a less than 720p resolution (1024 x 768, 132 PPI). Yet both provide the same 10-hours of use before needing a recharge.
The only advantage of a full HD screen in smart phone is that it gives more space for user interface elements such as button and text. For example, a webpage can fit to the screen, but the size of the contents decreases due to high resolution. In most of the cases, the viewer has to zoom in the contents to view them easily.
Due to these reasons, I still prefer to stick to my Xperia S with 720p resolution and a PPI of 341.
Click to expand...
Click to collapse
Interesting read. Though I can definitely tell there is a difference when comparing my lte and the HTC one side by side. That being said when they aren't side by side I can't tell.
Sent from my EVO using xda app-developers app
I would wager that you can only 'tell' because you read the spec .
My .02¢
Sent from my EVO using xda premium
scottspa74 said:
I would wager that you can only 'tell' because you read the spec .
My .02¢
Sent from my EVO using xda premium
Click to expand...
Click to collapse
I can see pixelation on my Evo's screen if I look closely. I can't see the same pixelation on the DNA's screen. There's a real difference, although you have to be a serious gadget nerd (like me) to care.
Sent from my EVO using xda premium
scottspa74 said:
I would wager that you can only 'tell' because you read the spec .
My .02¢
Sent from my EVO using xda premium
Click to expand...
Click to collapse
That's exactly my thinking.
maxpower7 said:
I can see pixelation on my Evo's screen if I look closely. I can't see the same pixelation on the DNA's screen. There's a real difference, although you have to be a serious gadget nerd (like me) to care.
Sent from my EVO using xda premium
Click to expand...
Click to collapse
I honestly cannot tell the difference at all. Although I saw a slight difference between my 3D and this EVO LTE. Maybe because I knew the specs though =p. I'm a big fan of sleeping at night. Lol.
... Sent from my 'Maybe the LTEvo wasn't such a bad idea afterall,' using the XDA Developers app.

[Q] PPI vs the actual resolution

Hi all, I am planning to buy Elephone P6i as a spare phone. I like the look and it is perfect size for me. I own few Chinese brand Android devices but I haven't bought an Elephone. Review of some Elephone devices looks good but again I haven't found any on this particular model. Please let me know if you found a good review about it.
My question is about the screen quality that I should expect from it. It is a 5" qHD (960 x 540) which is 220 PPI. I have a Nexus 7 2012 which has 216 PPI though it has higher resolution. Can I expect to see similar display on 5" qHD screen as in Nexus 7 2012?
I know it will depend on the hardware quality etc, but technically, should screen with similar PPI give the same display quality regardless the resolution? Thank you.

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