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Difference between Sandisk Ultra microsd card and normal card?

I'm going to buy a 16GB microsd card from sandisk. I've been finding on Amazon and found these two products:
Sandisk 16GB Mobile Ultra MicroSD Card : £36.00
SanDisk 16GB microSDHC Memory Card : £15.99
I've also noticed they're all class 2 (can't find a class 4 or class 6 sandisk). So what is the difference between them? I'm using the card for Windows Phone 7, so which one should I buy?

http://en.wikipedia.org/wiki/SD_Memory_Card#SDHC_cards_with_greater_than_32.C2.A0GB_capacity
as I understand it the only advantage of SDHC is an increased card storage. And im not sure if an SDHC card works in the HD2.

uxu said:
http://en.wikipedia.org/wiki/SD_Memory_Card#SDHC_cards_with_greater_than_32.C2.A0GB_capacity
as I understand it the only advantage of SDHC is an increased card storage. And im not sure if an SDHC card works in the HD2.
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Both of them should be SDHC (>2GB). I'm asking about the Ultra thing.

Zell Dinch said:
Both of them should be SDHC (>2GB). I'm asking about the Ultra thing.
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Click to collapse
Sorry, got it wrong

They're the same thing. One has an adapter however

Ultra means it has higher transfer speeds.
There's also Ultra and Extreme in the regular SDs.
Ultra=15 mb/s
Extreme=30 mb/s
So it's all about speed.

@apallohadas: they have different model number, one is SDSDQY-016G-E11M and one is SDSDQ-016G-FFP. And I suspect that just a card reader will make that difference in price.
@joooe: but they're both class 2?

I've tried several different class cards in my HD2, and regardless of advertised 'class' r/w speeds only changed noticeably if I took it out of my phone and used a card reader or adapter like shown in the "ultra" listing you have.

apallohadas said:
I've tried several different class cards in my HD2, and regardless of advertised 'class' r/w speeds only changed noticeably if I took it out of my phone and used a card reader or adapter like shown in the "ultra" listing you have.
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Click to collapse
Hello apallohadas
can you confirm or any one without any doubt that there is no difference in R/W speed between class 2 or class 4 or class 6 inside HD2 with Windows 6.5 or Android
thanks

secoseco said:
Hello apallohadas
can you confirm or any one without any doubt that there is no difference in R/W speed between class 2 or class 4 or class 6 inside HD2 with Windows 6.5 or Android
thanks
Click to expand...
Click to collapse
I don't have Winmo installed on my phone anymore, so I can't rerun that test and I didn't keep the numbers last time that I did it.
But if you'd like to try testing cards yourself, I used a program called H2test and a card adapter. My Class 2 Sandisk 32GB card gave numbers comparable to a class 6 Transcend 16GB.
Inside of the HD2 however, while on Android the tests take too long (setting read/write file sizes of 1GB+.) I've read in several places that the hardware limits performance as though they were all class 2 cards.

There are reviews where a class 4 card is superior to a class 6 card.
Sandisk cards are just great.
In the sandisk website there is no info about the class of both cards. Don't believe they have the same class.

apallohadas said:
I I've read in several places that the hardware limits performance as though they were all class 2 cards.
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thank you apallohadas for replay
I think so, hardware limitation to Class 2 with HD2 although I read in several places that there is more performance with Class 6 or 10 card in Android especially SD Android
I have Sandisk 16G class 2 and want to upgrade to 32G and I don't want to wast my money in useless class 6 or 10 with my EU HD2,
any one use Sandisk class2 then upgrade to class4 or 6 with EU HD2 and get faster performance in read and write inside HD2 not as disk drive ??
thanks

[Q] What class sdcard to buy?

Hi guys,
I'm getting a new sdcard for my phone, but I'm not exactly sure what class should I get. Is class 4 enough or should I get at least class 6?
I'm worried about full HD videos recording.
Any tips appreciated

Im going to get 16gb class 6
Sent from my LG-P990 using XDA App

Equipped with Team MicroSDHC 16GB Class 6.

I've got a 16GB class 4 and am happy with it.
In my opinion, the prices of cards class 6+ are too high for the extra transfer speed they offer.

tnx for the tips

16gig class 6 = 20$ off ebay.
And yes its a real class 6 as I have tested its speed
sent from LG OPTIMUS LTE using Tapatalk

I use the microSD 8 GB I had in my Nokia 5800 and I do not know the class membership, but I like it here because we have spent nothing

I have 64GB class 6 i believe.
Sent from my SAMSUNG-SGH-I717 using xda premium

I have 32GB Samsung class 10 and I'm very satisfied with it, only 35 Euros

I'm using Lexar 16gb class 6, worth the price, the performance is near a class 10 microsd.

bree1 said:
I use the microSD 8 GB I had in my Nokia 5800 and I do not know the class membership, but I like it here because we have spent nothing
Click to expand...
Click to collapse
Thats a class 2 card
Sent from my Optimus 2X using XDA
Nevr forget the thanX button

In my sensation, on a class 4 8GB card, i got 13 MBps full Hd recording and on same card but LG 2X, i get 18~19 Mbps fullHd video
I don't think class matters that much....
By the way i use internal SD storage for camera and later transfer to extrnal SD
Sent from my Optimus 2X using XDA
Nevr forget the thanX button

I've read that class 10 is actually slower at reading small files than class 4
You can see a lot of data (real world data) here: https://docs.google.com/spreadsheet/ccc?key=0AjPE3ZAD2eVudE9vZmQ3aHlfTkFvU2J4ZUplRDJQTEE#gid=0
taken from this thread
So if you're going boot from SD for example I would get a class 4
If you are planning on transferring a lot of movies/music/photo's or recording video's in high resolution onto the SD, I would recommend a class 10
But best of all: do some research and pick a card that excels in both, e.g.
SanDisk Mobile Ultra 32GB Micro SDHC Flash Card Model SDSDQY-032G-A11A
Samsung Class 10 MB-MSBGA/EU

Zorkman said:
I've read that class 10 is actually slower at reading small files than class 4
You can see a lot of data (real world data) here: https://docs.google.com/spreadsheet/ccc?key=0AjPE3ZAD2eVudE9vZmQ3aHlfTkFvU2J4ZUplRDJQTEE#gid=0
taken from this thread
So if you're going boot from SD for example I would get a class 4
If you are planning on transferring a lot of movies/music/photo's or recording video's in high resolution onto the SD, I would recommend a class 10
But best of all: do some research and pick a card that excels in both, e.g.
SanDisk Mobile Ultra 32GB Micro SDHC Flash Card Model SDSDQY-032G-A11A
Samsung Class 10 MB-MSBGA/EU
Click to expand...
Click to collapse
I have one Samsung 32gb class 10 (MB-MSBGA) and i'm quite satisfied with it.
It costed 32€ (1€/Gb is really a nice price ) and it's fast
Antutu Bench 2.7 gives me writes of 17-18MB/s and reads of around 20-22 MB/s (these scores with only 4gb free in the sd card (full of music and hd vids))

I use Kingston 8G class 4.
In regular use it has enough speed.

I have a ridata 32GB class10.
Really happy with it too.
My rule is to get class 6 and up. But that's me because I tend to play around with my phone and may come a time where I need to boot from it. As of now, the class 10 helps with loading apps (I hope). Since I have CM7 and it's using the external card as the default sd mount.

team 16gb class 10 forever

i think class 6 is good and the performance is good too. I never heard any of my friends got problem with it

I'm using VERICO 16GB class 10, very good performance!

I had to decide between Class 6 and Class 10 for my P990, but since the Class 10 just had a small additional charge I picked this one.
Samsung Class 10 for 18-19€ (Germany)

[Q] X8 support class 10 of memory?

I bought 8G (Class 10) memory card. but i don't think my phone(x8) support it?
in all of tests, My phone shows has class 4. Is it correct?

did you buy the card from Ebay or is it from a reputable source? Eg are you sure the card is a genuine class 10?
Swyped from HTC Desire S using XDA Premium

I don't know, how can i understand it is original?

insert your card into cardreader and record big file, and check record speed.

Have a look at the sdcard.
The most of the sdcards have a little number in a circle on it, and that´s the class of the sdcard.
So, if you can find a "10" in a circle on your card, it´s class ten.
if you have another number in a circle on it, then it´s not class 10

It may be a hardware problem, but testing the speed on a pc would be taking you out from the doubt.
I'm using a class 10 8gb Kingston microSD. No problem at all.
However, I experienced heavy writing problems with class 4 8gb Kingston. This was the reason why I had to resell this card, only to check with my own eyes the problem was on the x8 and not in the class 4 microSD.

I tested my 8G-Class 10 microSD with Ram Reader,
File: 699 Mb
write: 90 s ----- 7.8 Mb/s
Read: 65 s ----- 10.75 Mb/s
File: 398 Mb
write: 50 s ---- 8 Mb/s
Read: 20 s ---- 19.9 Mb/s
How do you think a bout my class of microSD?

Its class 8
Sent from my X8 using XDA Premium App

kingstone products have a lot of compatibility problems, i know they're popular but they suck.
I'm using an SDHC A-Data 8 Gb class 10 and works great.

cdanisor said:
kingstone products have a lot of compatibility problems, i know they're popular but they suck.
I'm using an SDHC A-Data 8 Gb class 10 and works great.
Click to expand...
Click to collapse
and become a faster relno from this phone?

XperianPro said:
Its class 8
Sent from my X8 using XDA Premium App
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Click to collapse
Those results mean nothing, there are lots of things that can influenciate speed. Also, the cards' speed is tested on factory with a special machine, not a computer, so real world speeds are always a bit slower. If the card was a fake i think it would be getting far worst performance.
Test it on a desktop pc (rear ports) using a decent card reader.
Sent from my E15i using XDA App

I have a kingmax class 10 8GB.
In pc, i can reach around 14.x mb/s.
In phone, fastest is 8mb/s, but in average 6mb/s+.

molimo said:
I bought 8G (Class 10) memory card. but i don't think my phone(x8) support it?
in all of tests, My phone shows has class 4. Is it correct?
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Click to collapse
Friends
At last, I tested my microSD (class 10) in Galaxy S I9003 with "SD Tools v2.1" & "SD Card speed test v1.9" applications, They show that the class of my microSD is 10, then tested again in x8 and show class4 or class6.
conclusion: Our x8 can't support class 10. it support class up to 6.

It's true that the sd card interface of the X8 can have a limit below class 10, but remember that there are always factors that can limit the speed.. Partition type, allocation unit size, ROM, kernel.. But yeah, i won't be surprised if it had a limit of roughly 6MB/s..and it's not that bad

Class 10 is very smooth for ungaze...

I test my 16GB V-Gen class 10 memory card with sd tools and the result:
read speed : 14,4 mbps
write speed : 8,2 mbps
i use 32k allocation unit size when formatting through computer,,

i have 8GB AData class 10 and work fast and smooth
Read 20 mb/s
Write 12 mb/s and some time more

can someone confirm if X8/W8 can benefit class 10? cause I have here class 6 offered by a friend for a very cheap price cause it is second hand

amnher said:
can someone confirm if X8/W8 can benefit class 10? cause I have here class 6 offered by a friend for a very cheap price cause it is second hand
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Click to collapse
i can confirm, because i use it.. i have AData 8GB class 10 card.

Cacobronx said:
i can confirm, because i use it.. i have AData 8GB class 10 card.
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Click to collapse
but compared to class 6? is it really big?

Sandisk Ultra 32GB Class 10 MicroSD VS Lexar 32GB Micro SDHC High Speed Class 10 ??

Hello ,
as the tittle said
i was looking hardly for the SanDisk Ultra 32gb class 10 microSD but i didn't find it at my country
i found Lexar 32GB Micro SDHC High Speed Card with Reader - Class 10 Extreme Speed
now i would like to know which one is better
Speed / brand / stands longer
don't mind the price
Sandisk Ultra 32GB Class 10 Micro SD Card with SD Adapter - FFP :
http://www.amazon.co.uk/gp/product/B0084DWCTW
Lexar 32GB Micro SDHC High Speed Card with Reader - Class 10 Extreme Speed :
http://www.amazon.co.uk/Lexar-32GB-Micro-Speed-Reader/dp/B004BR2ZTM
please help ASAP

I have been using that exact Lexar card you referenced for several months. I used it first in a Galaxy S3, and then moved it over to the Note 2.
I have not had any issues nor corruptions, and have been very pleased with it.
I would buy it again without question!

please of anyone tested both cards tell me
i need to decide urgently
Thanx a lot

MamomaN said:
please of anyone tested both cards tell me
i need to decide urgently
Thanx a lot
Click to expand...
Click to collapse
I have both, the sandisk is slightly faster, lexar is slightly expensive.

Any more feedback ?
I read a lot of revs says lexar is better and faster
Please i need to buy it urgently
Sent from my GT-N7100 using Tapatalk 2

I would recommend anything but Sandisk.

i have a question ...
Is Class 10 really needed for Mobile device ... or only class 4 will work for Mobile full Hd record and Burst mode shooting ??

Wiley_11 said:
I would recommend anything but Sandisk.
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Click to collapse
why !!
i afraid it's too late , i ordered sandisk
tell me why you said that

Any ?
Sent from my GT-N7100 using Tapatalk 2

about sandisk's bad reviews - a while back they had an ultrabad batch of cards that failed pretty consistently and they gained a bad rap for it - apparently they're better / fixed now, but fwiw, i've had every brand fail on me (literally; patriot, lexar, sandisk etc) but I might be the exception to the usage details as I'm swapping machines all day

My last card was a Lexar 32 c10 and it worked perfectly for over a year. It's now in my wife's G3. I've been using a Sandisk 64 c10 for the last few months and it's also working flawlessly. I think you're fine with either one.

i got the Sandisk 32 class 10
that is the first step to do to start using it now ?
format on computer or plug it to the phone directly ?

MamomaN said:
i got the Sandisk 32 class 10
that is the first step to do to start using it now ?
format on computer or plug it to the phone directly ?
Click to expand...
Click to collapse
You could simply plug it in to the phone (while it's off of course) and format the card within the phone as well

I have done that too as well. I recently bought a 32gb micro sd for my Note2 sgh-i317 and for my gs3 a 64gb micro sd sgh-i747
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

Best sd card....

I read somewhere that class 6 card is better than class 10 for smartphones? Is it true? I was planning to buy class 10 transend or sandisk 32 gb sd card. Should I ? Anybody...
Sent from my LG-P970 using xda premium
Sent from my LG-P970 using xda premium

ramola said:
I read somewhere that class 6 card is better than class 10 for smartphones? Is it true? I was planning to buy class 10 transend or sandisk 32 gb sd card. Should I ? Anybody...
Click to expand...
Click to collapse
The general consensus is that Class 10 is great for what it's intended for: transferring or saving LARGE media files (recording videos or taking high-resolution digital photos).
The lower classes seem to perform better with smaller file transfers.
I have a Class 4 Sandisk 8MB card in my P970, and I'm very happy with the performance. I doubt I'd see a performance increase moving to Class 10.

androcraze said:
The general consensus is that Class 10 is great for what it's intended for: transferring or saving LARGE media files (recording videos or taking high-resolution digital photos).
The lower classes seem to perform better with smaller file transfers.
I have a Class 4 Sandisk 8MB card in my P970, and I'm very happy with the performance. I doubt I'd see a performance increase moving to Class 10.
Click to expand...
Click to collapse
i think you mean 8GB?
i have a Class 10 Samsung micro SD-Card with a space of 32GB
The difference between Class 4 and 10 is that C4 has 4MB/s write speed and class 10 10 MB/s write speed.
I would always choose a class 10. they are not so expensive and are more than twice as fast as Class 4
Samsung Class 10 SD-Card

ramola said:
I read somewhere that class 6 card is better than class 10 for smartphones? Is it true? I was planning to buy class 10 transend or sandisk 32 gb sd card. Should I ? Anybody...
Click to expand...
Click to collapse
Here's an interesting link comparing different classes:
http://forum.xda-developers.com/showthread.php?t=1150369
I have read that manufacturers have recently improved random read/write speeds on class 10 cards. Dunno. Biggest thing I see is that brand almost matters as much as class. I'd stick with Sandisk.
Enjoy, and good luck.