Database Users

MicroSD Question

Hi, sorry if this is a double post. I did look around but could not find much info.
I'm interested to know how well the new 16GB MicroSD cards work on the Xperia. Anyone using one of these? My main concern is that they all seem to only be class 2 atm. Is this too slow to run apps and my videos stored on it etc?
Should I wait till a class 4 16GB card comes out?
Thanks
Edit: I also noticed that SanDisk has a “Mobile Ultra” memory card range. Only up to 8GB though. Anyone using one of these? Is there a big difference in speeds?

i don't think it matters in a phone.

I ordered the eact same Mobile Ultra card today. Should be here saturday, so I will tell when I get it. But assuming it's Class 6 card, it should be fast. I wouldn't go with Class 2, since it's slow. But as Jabe says, it might not matter on the phone.

So as at now no one's using a 16GB yet?

Give me a week or 2. I'm planning on ordering the Sandisk one.

Sandisk Mobile Ultra is good, and it's what I am using for X1. Since it's class 6, the read/write speed is about 20/16 mb/s, which is much faster than class 2. If you wanna watch video storaged in card, this one is your first choice.

wdq30 said:
Sandisk Mobile Ultra is good, and it's what I am using for X1. Since it's class 6, the read/write speed is about 20/16 mb/s, which is much faster than class 2. If you wanna watch video storaged in card, this one is your first choice.
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Note that the speed in the end is depending on the host itself. If the host is slow, even if you use class 6 memory card, it's not going to make any difference. Personally I believe the phone itself would be the bottleneck and not the memory card.
I know it's not totally relevant but just for reference, take a look at the link below. As you can see the speed of class 2 and 6 are pretty identical as it's limited by the host. This is even with a dedicated memory card reader. Compare the 2nd and 4th entries from the bottom.
http://www.robgalbraith.com/bins/reader_report_multi_page.asp?cid=6007-9438

VaThInK said:
Note that the speed in the end is depending on the host itself. If the host is slow, even if you use class 6 memory card, it's not going to make any difference. Personally I believe the phone itself would be the bottleneck and not the memory card.
I know it's not totally relevant but just for reference, take a look at the link below. As you can see the speed of class 2 and 6 are pretty identical as it's limited by the host. This is even with a dedicated memory card reader. Compare the 2nd and 4th entries from the bottom.
http://www.robgalbraith.com/bins/reader_report_multi_page.asp?cid=6007-9438
Click to expand...
Click to collapse
If that's the case, what's the optimal speed supported by X1?

So anyone able to compare the 2 classes

ipporek said:
So as at now no one's using a 16GB yet?
Click to expand...
Click to collapse
I'm using a 16GB Class 2 at the moment. No probs with apps or music. But I have no videos on the card...

with normal sd cards the pdas were mostly not able to transfer as fast as the sd card supported
as the sd interface in onchip and not that fast
would like to see some tests if the same hold true with newer pda's and class X microSD cards

anyone able to follow this up yet?

I'm using a Sandisk 8gb Class 4 HC. No problems with speed or data read/write (on the phone itself).
Using the phone as a disk drive though (not activesync) is noticeably slower than using a USB adapter, *suggesting* the phone itself is the bottleneck?

I'm using a SanDisk 8GB Class II Card and I had no problems with photos, videos or music so far.
Don't think a Class 4 or 6 is worth the price in a mobile phone.

I got my 16GB Microsdhc today. And everything works. Sad thing is it only shows 15GB.

I find no difference in speed between my 8G class 6 and 16G class 2 (both from Sandisk)
xmoo said:
I got my 16GB Microsdhc today. And everything works. Sad thing is it only shows 15GB.
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Click to collapse
it's 15G probably because of the way how "G" is being calculated. 16,000,000,000 = 16,000,000,000/(1024*1024*1024) = 14.9GB

im using a 8g class 4 card, music, apps and vids work great.
just a quick question, the x1 has a sd card limit of 32g, when a larger card comes out like the 128gb card that sandisk has said will come out, could windows mobile have a update so that it can read it or is limited to the reader hardware inside the x1

I have 2 cards: Sandisk 16GB Class 2 and Kingston 8GB class 4.
I use Sandisk in Xperia, and the speed is more than sufficient. It reaches 12-15 MB/s writing on USB adapter. Reading - it's no problem reaching even more. So it's ok, speed wise.
I don't think you would need more speed in Xperia )
There's no HD video recording option in there )

one can use pocket mechanics to benchmark the sdcard speed
if the results are lower i would suspect it show the bottleneck speed
of the sd interface of the qualcomm cpu in x1

I have a 16gb micro sdhc and some .avi videos lag (highish quality). Specifically, top gear season 12 episodes from finalgear.com. it might be the divx client though, Im using the WM 6 Pro version available on the divx website.

4GB microSDhc or 8GB microSDhc

I'm planning to get a microSDhc card for my Jade (HTC Touch 3g).
Can you guys please advice will there is any difference in performance, response time and speed between 4GB microSDhc and 8GB microSDhc.
For the timebeing, I'm using mere 1GB micro SD card and its works great.
I know that both works with Jade, but how about the response time? I'm surely looking for bigger space, but not at the cost of speed and response time.
Thanks!!

HTC (officially) supports only 4Gb SD. Many I know have used 8Gb without problem. Personally I'm using just 4Gb without problem. Response time - blink of an eye, I do not have an empirical engineering measure though. Most of my programs / applications are on SD and the response time are OK.. so far, over a year now, never fail.

I use this one without any problems:
http://www.amazon.de/gp/product/B001D0ROGO/ref=ox_ya_oh_product
I have no exact data for response etc. but it is very fast.

I am using an 8gb, I can't compare it to a 4gb since I don't have one.

azahidi said:
HTC (officially) supports only 4Gb SD. Many I know have used 8Gb without problem. Personally I'm using just 4Gb without problem. Response time - blink of an eye, I do not have an empirical engineering measure though. Most of my programs / applications are on SD and the response time are OK.. so far, over a year now, never fail.
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Click to collapse
Thanks Azahidi for the info!!
Even i'm planning to have my most of the programs/appilcations on the storage card, so was wondering about the response time.
On HTC site, they said they have tested 8GB, but didn't mention about the performance.
http://www.htc.com/in/faqs.aspx?p_id=174&cat=270&id=85794&f=t
But, the salesman at the store said 8GB will make ur device slow, which I didn't want for more space.
So, was looking for the expert opinions on this.

MvBoe said:
I use this one without any problems:
http://www.amazon.de/gp/product/B001D0ROGO/ref=ox_ya_oh_product
I have no exact data for response etc. but it is very fast.
Click to expand...
Click to collapse
DanRo80 said:
I am using an 8gb, I can't compare it to a 4gb since I don't have one.
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Click to collapse
Have you guys installed programs/applications on the Storage card?
And is the reponse of those program on SD are marginally slower as compare to similiar application on device memory?
Even I'm looking to bigger space, it helps a lazy person like me to clean the storage after long long time.
How is the access time for data like music/video/documents from SD and how about the stability?
Thanks in advance!!

meet_bijoy said:
Have you guys installed programs/applications on the Storage card?
And is the reponse of those program on SD are marginally slower as compare to similiar application on device memory?
Even I'm looking to bigger space, it helps a lazy person like me to clean the storage after long long time.
How is the access time for data like music/video/documents from SD and how about the stability?
Thanks in advance!!
Click to expand...
Click to collapse
I installed nearly all programs on my card (see above) and I have no delay or other problems with it. Of course I do never remove it.

Speed for Cards...
most of the new Cards u can use have different "class" of speed, it give class
Class 2: 2 MByte/s - 13x
Class 4: 4 MByte/s - 26x
Class 6: 6 MByte/s - 40x
i use a Toshiba 8GB with Class4 (i pay 8,-EUR at eBay) and this works fine.
The most of the Programms I use, I installed on the Card except Phoneweaver or eqal Software that use direct access to the Sim.
I use for Videos (MusicClips, TV-Series with Subtitle in srt-format and Documentations) the CoreMobileVideoPlayer and the Videos works fluently perfect.
I have a second Device, a HTC Diamond with internal 4GB and to this it is no different with the speed (memory access).
I hope, this helps a little bit

Chris1507 said:
most of the new Cards u can use have different "class" of speed, it give class
Class 2: 2 MByte/s - 13x
Class 4: 4 MByte/s - 26x
Class 6: 6 MByte/s - 40x
i use a Toshiba 8GB with Class4 (i pay 8,-EUR at eBay) and this works fine.
The most of the Programms I use, I installed on the Card except Phoneweaver or eqal Software that use direct access to the Sim.
I use for Videos (MusicClips, TV-Series with Subtitle in srt-format and Documentations) the CoreMobileVideoPlayer and the Videos works fluently perfect.
I have a second Device, a HTC Diamond with internal 4GB and to this it is no different with the speed (memory access).
I hope, this helps a little bit
Click to expand...
Click to collapse
Thank you so much!!
It is a great information you shared and really helpfull for selecting my Storage card.

well i use an 8GB micro sd card and it works like a charm
besides i heard that our jade can hold up to 16 GB's (thats what the folks at htc store told me) not quite sure about it but i guess the more storage u ride the more battery consumption u get
so i guess its fairly enough to stick with 8Gigs.

HTC touch 3G ( jade 110)
Hi guys. (I own htc touch 3g- jada 110) I am using also 8gb SDHC (kingston) class 4 and I recomend this one. Its fast, cheap (ebay- just be aware of some cheap replicas). I have also tried this card on my girlfriend`s htc tytn 2 (kaiser) and worked as well. So highly recomend KINGSTON cards.

I have both the 4gb and 8 gb Sandisk micro sd card. I can't tell the difference in speed and am very happy with the 8 gb card! Am thinking of upgrading to the 16 gb for my movies though!

technobe said:
I have both the 4gb and 8 gb Sandisk micro sd card. I can't tell the difference in speed and am very happy with the 8 gb card! Am thinking of upgrading to the 16 gb for my movies though!
Click to expand...
Click to collapse
Thanks for the information!!
Let us know your feedback after using 16GB, if things are stable there..... then we might think of switching to 16GB for the obvious reasons...

[Q] Micro Sd class 10 or class 6?

I'm looking to buy a new MicroSD and wondering if getting a class 10 over a class 6 would make a significant difference to the phone (if im using data2sd and or apps2sd)
Thank you!

I think the difference between class 6 and 10 would feel minor, where-as the difference between the class 2 and class 6 feels huge.
And since this is the Vibrant forums, I should mention that the internal memory in the phone is very fast. I tested it at over 10MB/s write on my first phone. My second phone its closer to 6 MB/s write. So you apps and stuff should run perfectly fine from the internal app storage.
I should also mention that I purchased the new kingston micro sd thats rated class 4 but claims speeds upto class 10. Upon testing that I got 9 MB/s write. ($28 after $10 reward from buy.com). My previous class 2 16GB card tested it 2.6 MB/s write for comparison.

Shane_pcs said:
I think the difference between class 6 and 10 would feel minor, where-as the difference between the class 2 and class 6 feels huge.
And since this is the Vibrant forums, I should mention that the internal memory in the phone is very fast. I tested it at over 10MB/s write on my first phone. My second phone its closer to 6 MB/s write. So you apps and stuff should run perfectly fine from the internal app storage.
I should also mention that I purchased the new kingston micro sd thats rated class 4 but claims speeds upto class 10. Upon testing that I got 9 MB/s write. ($28 after $10 reward from buy.com). My previous class 2 16GB card tested it 2.6 MB/s write for comparison.
Click to expand...
Click to collapse
Just to help out here...
the difference between class 2 and class 6 is the exact same as class 6 and class 10. Remember the cd-rom speeds (52x, etc)? That's how the speed is calculated for a SDHC card. So a class 2 = 2x cdrom, class 6 = 6x, class 10 = 10x.
whether our hardware has capability to handle what a class 10 can do, that I don't know. I'd definitely advise to get something with more space than a 2GB card though - I'm not sure everyone needs a 32 (personal opinion/long discussion), but I absolutely agree it should be improved upon.

designerfx said:
Just to help out here...
the difference between class 2 and class 6 is the exact same as class 6 and class 10. Remember the cd-rom speeds (52x, etc)? That's how the speed is calculated for a SDHC card. So a class 2 = 2x cdrom, class 6 = 6x, class 10 = 10x.
whether our hardware has capability to handle what a class 10 can do, that I don't know. I'd definitely advise to get something with more space than a 2GB card though - I'm not sure everyone needs a 32 (personal opinion/long discussion), but I absolutely agree it should be improved upon.
Click to expand...
Click to collapse
I understand that, thats why i picked those classes. But my point is that a class 6 card is 3x the speed of a class2 where class 10 isnt even twice as fast as the class 6. So the perceived difference is smaller, even though the technical difference is the same.

I'm still running a class 2 and I've been wondering if this is holding me back on this phone (card was previously in my G1).
Will the lower classes function the same (creating ext2 etc...) it's just a matter of speed? Just wondering if there's anything that simply can't be done with a class2 or even 6 that could be done with a 10.

CapitalM3 said:
I'm still running a class 2 and I've been wondering if this is holding me back on this phone (card was previously in my G1).
Will the lower classes function the same (creating ext2 etc...) it's just a matter of speed? Just wondering if there's anything that simply can't be done with a class2 or even 6 that could be done with a 10.
Click to expand...
Click to collapse
Just cost you more. Do you really need a class 10 for this phone? Avatar is on a card that isnt even a class 2.

Vegastouch said:
Just cost you more. Do you really need a class 10 for this phone? Avatar is on a card that isnt even a class 2.
Click to expand...
Click to collapse
xD What class was the stock sd card?

I only ever see class 6+ cards being used in higher end compact cameras and SLRs.
Putting anything higher than class 6 in a phone your using for apps/music/movies isn't needed and just a waste of money.
I've also seen a lot of people saying the memory card speeds with the galaxy s are bottlenecked right now, so your not even going to get top speeds with a class 6.

Vegastouch said:
Just cost you more. Do you really need a class 10 for this phone? Avatar is on a card that isnt even a class 2.
Click to expand...
Click to collapse
While the card isn't marked, it tests out at just over 4MB/s which would put it in a class 4.
And we should be clear that the class refers to the write speed. A class 2 will read at 10 MB/s just like the other classes. Where you run into issues with class 2 cards is when you start modding or running programs from the sd card. If you use the card for a swap partition or something the write speed now plays a major factor in the usefulness.
If all you want it for is to place your music files on there and listen to them, then a class 2 will be plenty. That was my initial thought when I bought my 1st 16 GB card for my mytouch3g. Then I got into custom roms and found myself limited.

How do you test the speed of the SD card?

What size microsd card are you looking for? If its a 32GB, I have only seen a Sandisk microsd in Class 2. As far as I know there are no higher classes at this time. Hopefully that will change soon. I would like to get all of my music onto one 32gb card.

designerfx said:
Just to help out here...
the difference between class 2 and class 6 is the exact same as class 6 and class 10. Remember the cd-rom speeds (52x, etc)? That's how the speed is calculated for a SDHC card. So a class 2 = 2x cdrom, class 6 = 6x, class 10 = 10x.
whether our hardware has capability to handle what a class 10 can do, that I don't know. I'd definitely advise to get something with more space than a 2GB card though - I'm not sure everyone needs a 32 (personal opinion/long discussion), but I absolutely agree it should be improved upon.
Click to expand...
Click to collapse
This isnt exactly true. with cdroms the X stands for how much faster it would spin in relation to a audio cd. So 1x ment it spun at the same speed as a audio cd. 2x was twice, ext ext. And this was a max speed.
Classes for SDCard stands for the minimum transfer speed. class two is at least 2mbps, class 6 is 6mbps, and so on.

frankencat said:
How do you test the speed of the SD card?
Click to expand...
Click to collapse
google FDbench
it will test the read and write speed as well as operations per second.

I still can't find a 32gb microsd class 10, anyone find one for sale?

Class 10
Class 10 limitation presently is 8 gig for all brands except the Kingston and soon to be released Silicon Power. The Kingston brand never benches as advertised, so they are not reliable from my point of view. Silicon power has been pretty solid on their claims from my testing versus their claims, but I have not yet got my hands on the latest class 10 16 gig, I have been trying to buy for the since 10-1-2010 but not out in USA yet.
Kingston (in my opinion) is rife with false claims and I find their products have always been sub par.
Flashing and alike works better with class 6 over class 2 & 4. So, if you really want more memory the only 32 gig class 6 I have seen advertised (amazon) are: Transcend, Centon, and Komputerbay (what a name?!) 32 gig Class 6
Other than that, we wil just have to wait until they get the algorithm figured out for a micro ad card with that much ram and that fast.

Get the app "sd card speed test" it works ok Im sure there are others as well

I imagine the only reason you would need a Class 6 card or above is if you plan to take a lot of HD video. Apart from that, even a Class 2 is fast enough to keep up with the still camera, not to mention anything that just requires reads, like music or movie playback.
As for running apps off an external SD card, why would you ever want to do that? You can load close to 2GB on the internal app space, which is likely way faster than any mounted external SD card. I feel like an app whore and I'm not even close to using half that space. By the time apps start getting large enough that it's an issue, we'll be on the Vibrant 2 or beyond.

glad that you asked
merrifield69 said:
I'm looking to buy a new MicroSD and wondering if getting a class 10 over a class 6 would make a significant difference to the phone (if im using data2sd and or apps2sd)
Thank you!
Click to expand...
Click to collapse
because I just picked up a 16G class 10 by WinTec last week and it is VERY fast from boot up with 9G occupied from 15G available (wondered 1G gone to? and that is a lot of gone G lol). It was $42 wo tax expensive but so far the fastest.

Whoohoo
mine 16G class 10 tested 2x >8M and 1x >9M write, 3x > 18M read and it was probably so fast that the result said "unknown class" lol. x means 1 run with 2MB buffer setting. Downloaded app call SD card speed tester.

There are now some 32GB class 6 SDCARDS on the markey, and with 2.2 and installing apps to SD that might matter. It might also matter if you have a TON of music and images, as "Scanning SD for Media" would be faster.
You will pay money for the time savings though.

Tweak to Speed up writing speed of sd card?

Hi,
I have class 4 SD card m running Pda's win7.8 rom. the problem I m facing is its lagging and slow then I did a benchmark test using free benchmark app everything is perfect except the write speed which is just 2.1 something, I know it may be a problem of SD card though wanted to know is there any tweak to speed it up through registry or app like andoirds have?
thankyou

no... buy better card...

dxdy said:
no... buy better card...
Click to expand...
Click to collapse
can you guide me which type of card should i buy?
thankyou..

someone write this list but also many others cards is fine
Kingston 4GB Class 4
Kingston 8GB Class 4
Kingston 32GB Class 4
Microcenter 16GB Class 2
SanDisk 8 GB Class 2
SanDisk 16 GB Class 2
SanDisk 16 GB Class 6
SanDisk 32 GB Class 2
i have SanDisk 32 GB Class 2 and speed is around 8 mb/s

Slower card makes
you wait longer,
gets your cpu hotter,
your battery drain faster,
lags the phone,
slow responses of your phone,
Go buy yourself a class10 SD card!
Believe me, if i knew the diffrence, i would buy it 3 years ago...

Thank-you dxdy and stealth21
will buy new SD and report back

[Q] Which is the best SD card for Samsung galaxy Y for using link2sd without lag?

Hi,
I am a newbie . Got my first ever android (samsung galaxy Y 5360) the other day. Rooted it too . Found out my phone's got low internal storage memory. I want to increase my phone's internal memory by using link2sd (or any other better app if present) and loading apps from my microsd card. I am now trying to get a good sd card to do the needful.
What I wanted to know is which is the optimal sd card(not particular about brand) with its class number (4gb class 4, 8gb class 6, 16gb class 10, etc) that I can use so that I can get "the best performance" out of my "Galaxy Y."
I was going to go for a 16gb class 10 microsd card but upon using Google i saw in some places class 6 is better for small read writes like in the case of using link2sd app and that class 10 is better for transferring of big files (and making videos and stuff) and that there's going to be lag in class 10 cards of 16 gb and 32 gb, etc for my purpose. At some other places i saw that class 10 is always better no matter what. Or maybe i just misunderstood the whole thing.
For example for my above purpose, is an 8gb (or 16gb) class 6 card going to perform better than an 8gb(or 16gb) class 10 card
thank you

The higher the class the better the read/write speed
I had a 32gb class 10 and it worked fine - to be honest apart from transferring very large files (and fat32 doesn't support larger than 2gb file) you probably will not notice any difference

marcussmith2626 said:
The higher the class the better the read/write speed
I had a 32gb class 10 and it worked fine - to be honest apart from transferring very large files (and fat32 doesn't support larger than 2gb file) you probably will not notice any difference
Click to expand...
Click to collapse
Thanks