Note3 11% faster touch response than competitors.(Gestures off, touch sensiti...

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s44

Diamond Member
Oct 13, 2006
9,427
16
81
Over on XDA there were simliar threads with the Note 2 and I believe they found the s-pen responsiveness to be much higher than using a finger (something like 80ms less) so I imagine it's possible.
Shouldn't turning on high sensitivity (aka glove mode) have an effect?
 

pauldun170

Diamond Member
Sep 26, 2011
9,139
5,074
136
So a smaller phone pushing less pixels outperforms older phones that push more pixels?
Would there perhaps be a more apples to apples comparison available?

My GTX570 running at 1136x680 outperforms your GTX670 at 1900x1080
My GTX570 must be better!!

We have Android and iPhones in our house.
iPhone stutters from time to time, android stutters from times to time but overall they both perform well.
I guess its not allowed to be happy with both your android and your iphone
 

Eug

Lifer
Mar 11, 2000
23,752
1,309
126
What also floors me about the comparison between my iPhone 4 iOS 7 and my RAZR HD JB 4.1 is that the iPhone 4 only has 512 MB RAM.

I'm kinda annoyed that the 5S only has 1 GB RAM, but I'm happier with 1 GB RAM on iOS than 1 GB RAM on Android. 2 GB RAM should be sufficient though on Android.

BTW, I'm not saying the iPhone 4 with iOS 7 is fast by any means. It isn't. However, it is usable, and in fact, my wife uses it full time.
 

MrX8503

Diamond Member
Oct 23, 2005
4,529
0
0
So a smaller phone pushing less pixels outperforms older phones that push more pixels?
Would there perhaps be a more apples to apples comparison available?

My GTX570 running at 1136x680 outperforms your GTX670 at 1900x1080
My GTX570 must be better!!

We have Android and iPhones in our house.
iPhone stutters from time to time, android stutters from times to time but overall they both perform well.
I guess its not allowed to be happy with both your android and your iphone

There was a time when the iPhone was pushing more pixels and still performed better. I'm certainly not saying iPhones never stutter.
 

poofyhairguy

Lifer
Nov 20, 2005
14,612
318
126
But if you go through the same progression, Galaxy S2 => Galaxy S3 => Galaxy S4 all their launch OSes, you can see a clear smoothness difference.

A GS2 never got completely smooth, but a S3 is very close to an S4. In fact I would say on stock models the S3 is smoother because of how much they bloated Touchwiz/ruined it with the S4. S4 forums are full of complaints about lag.
 

openwheel

Platinum Member
Apr 30, 2012
2,044
17
81
So a smaller phone pushing less pixels outperforms older phones that push more pixels?
Would there perhaps be a more apples to apples comparison available?

My GTX570 running at 1136x680 outperforms your GTX670 at 1900x1080
My GTX570 must be better!!

We have Android and iPhones in our house.
iPhone stutters from time to time, android stutters from times to time but overall they both perform well.
I guess its not allowed to be happy with both your android and your iphone

Well said.
 

zerogear

Diamond Member
Jun 4, 2000
5,611
9
81
A GS2 never got completely smooth, but a S3 is very close to an S4. In fact I would say on stock models the S3 is smoother because of how much they bloated Touchwiz/ruined it with the S4. S4 forums are full of complaints about lag.

I agree with this sentiment. I'm even running a debloated ROM, and it still behaves much worse than S3 (Exynos version) that I had. I hoped Note 3 would alleviate some of the issues, but from the videos, seems like the interface is just as laggy.
 

mosco

Senior member
Sep 24, 2002
940
1
76
What also floors me about the comparison between my iPhone 4 iOS 7 and my RAZR HD JB 4.1 is that the iPhone 4 only has 512 MB RAM.

I'm kinda annoyed that the 5S only has 1 GB RAM, but I'm happier with 1 GB RAM on iOS than 1 GB RAM on Android. 2 GB RAM should be sufficient though on Android.

I wasn't too surprised that they didn't go 2GB. The reasons Android phones have 2GB is because without that amount of ram, garbage collection would hurt performance even more than it does. Apple can get away with it for now, although I wouldn't be surprised if the next iPad has more.

As some others have said, this is one of the reason I could never go Android full time. I have access to top of the line Android phones at work, and they all suffer for poor touch screen response. Samsung phones seem to be the worst perpetrators.

The Nexus 4 isn't too bad, but it's a crappy phone hardware wise, so it isn't something I would want to use (form factor/Size, poor camera, poor volume, etc).
 

pantsaregood

Senior member
Feb 13, 2011
993
37
91
This article/benchmark can't be anything short of complete nonsense.

100ms latency is an absurd amount - enough to make simple tasks like typing impossible. Typing with 50ms latency wouldn't be much better, either. Everyone in this topic is talking about "smoothness," but that isn't really correlated with response time in any meaningful way. A consistently high framerate doesn't have any bearing on response time.

As I said, however; these numbers aren't realistic. The listed response times would cause the tested devices to vary from "extremely difficult to use" to "impossible to use" as a direct result of input lag.
 

mavere

Member
Mar 2, 2005
187
2
81
I found this Microsoft Research video being linked on some other blog: "Applied Sciences Group: High Performance Touch"

The video is from early-mid 2012 and, besides containing some interesting insights into how touch response relates to physical "presence", it also casually asserts over and over how 100+ ms latency is typical for touch devices. At the end, the guy states that <1 ms is the ideal goal in the long term.

Of course, latency is harder to market than Octa cores, so I guess we just have to slowly wait for companies who actually care about user experience to lead the way.
 

Mr. Pedantic

Diamond Member
Feb 14, 2010
5,039
0
76
This article/benchmark can't be anything short of complete nonsense.

100ms latency is an absurd amount - enough to make simple tasks like typing impossible. Typing with 50ms latency wouldn't be much better, either. Everyone in this topic is talking about "smoothness," but that isn't really correlated with response time in any meaningful way. A consistently high framerate doesn't have any bearing on response time.

As I said, however; these numbers aren't realistic. The listed response times would cause the tested devices to vary from "extremely difficult to use" to "impossible to use" as a direct result of input lag.

My SGS had about half a second latency between me pressing a button on the keyboard and it actually registering. Made typing a complete pain in the arse, you had to either type slow and accurate, or type fast and hope the speed made up for the inaccuracy.
 

pantsaregood

Senior member
Feb 13, 2011
993
37
91
Something still isn't right about this. The latency of swiping is apparent on all touch devices, but typing doesn't seem to cause the same issue. Even on my Lumia 520 (not a high-end device, by any means), the tapping of keys registers quickly enough that I fail to notice any gap between touching the screen and seeing the key press.

The Lumia 928 apparently falls at 117ms response time, so I'd expect the Lumia 520 to be considerably slower to respond. 117ms should be painfully apparent while typing. Trying to play a guitar with 25ms latency is incredibly disorienting, so I don't really see how 50ms would make typing any less disorienting.
 

podspi

Golden Member
Jan 11, 2011
1,982
102
106
What also floors me about the comparison between my iPhone 4 iOS 7 and my RAZR HD JB 4.1 is that the iPhone 4 only has 512 MB RAM.

I'm kinda annoyed that the 5S only has 1 GB RAM, but I'm happier with 1 GB RAM on iOS than 1 GB RAM on Android. 2 GB RAM should be sufficient though on Android.

BTW, I'm not saying the iPhone 4 with iOS 7 is fast by any means. It isn't. However, it is usable, and in fact, my wife uses it full time.


RAM usage Android is a disaster. You really have to hand it to Apple and Microsoft, their mobile OSes do much better in RAM constrained situations.


My SGS had about half a second latency between me pressing a button on the keyboard and it actually registering. Made typing a complete pain in the arse, you had to either type slow and accurate, or type fast and hope the speed made up for the inaccuracy.

If you are talking about the S3, switching to a non-stock keyboard makes things much better in that regard.
 

poofyhairguy

Lifer
Nov 20, 2005
14,612
318
126
I agree with this sentiment. I'm even running a debloated ROM, and it still behaves much worse than S3 (Exynos version) that I had. I hoped Note 3 would alleviate some of the issues, but from the videos, seems like the interface is just as laggy.

Luckily when you run GE ROMs like I do you get your smoothness back on the S4, so it's software not hardware. Sad though that the stock Touchwiz is so crippled.
 

zerogear

Diamond Member
Jun 4, 2000
5,611
9
81
Luckily when you run GE ROMs like I do you get your smoothness back on the S4, so it's software not hardware. Sad though that the stock Touchwiz is so crippled.

Which one are you using? I was using one build and System UI kept on crashing.
 

Nintendesert

Diamond Member
Mar 28, 2010
7,761
5
0
Thanks for whoever posted this: http://www.youtube.com/watch?v=vOvQCPLkPt4

There's been a lot of back and forth with this screen latency, and I guess I never really noticed it on phones but just thought the UI was being slow. Perhaps now when say, sliding to unlock, it's not the UI but just the screen having latency to the touch. I'd really love to use a screen with that 1ms latency though. That would be an interesting experience.
 

TuxDave

Lifer
Oct 8, 2002
10,572
3
71
Gnex vs iPhone 5, no difference to me.

Im sure to the average user, it wont matter/they wont realize.

Actually I disagree. The average user won't be able to specify that "this device has 50ps higher touchscreen latency". What the average user WILL be able to say is "this device feels slower" without really knowing why. Stuff like touchscreen latency is probably one the ways to make things seem faster without really being faster.
 

Eug

Lifer
Mar 11, 2000
23,752
1,309
126
Yeah, I do feel Android phones are laggier in general, but in the past I just assumed it was all due to the software. Now after reading this stuff, I think it's probably a combination of the hardware and software.
 
Feb 19, 2001
20,158
20
81
Yeah, I do feel Android phones are laggier in general, but in the past I just assumed it was all due to the software. Now after reading this stuff, I think it's probably a combination of the hardware and software.

There's two kinds of lag here right? There's the touchscreen/input lag and then there's UI rendering lag. The former is hardware + software, but the latter is pure software as we've seen 4.0, 4.1 and 4.3 really speed things up.
 

MrX8503

Diamond Member
Oct 23, 2005
4,529
0
0
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