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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)
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
Click to expand...
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?
Click to expand...
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
Click to expand...
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.
Click to expand...
Click to collapse
but compared to class 6? is it really big?
I have found 16GB CLASS 6 strontium brand which cost around 26USD. You think 16GB class 10 is a big difference for class 6?16GB Class 10 is still not available now in my area. What do you think? Planning to use it on link2sd/app2sd to focus all my apps on SD
Both are fast but class 10 is faster.
Sent from my Xperia X8 using XDA app
Chris95X8 said:
Both are fast but class 10 is faster.
Sent from my Xperia X8 using XDA app
Click to expand...
Click to collapse
But for app2sd/link2sd purposes is class 6 enough or class 10 is mandatory for no lags? Ill be planning to use SD for memory purposes
Damn, Here in chile you can only buy MicroSD Class 4
amnher said:
But for app2sd/link2sd purposes is class 6 enough or class 10 is mandatory for no lags? Ill be planning to use SD for memory purposes
Click to expand...
Click to collapse
I use a transcend 8Gb class 6 SDcard. ofcourse, apps2sd is already included with most Custom ROMs (you do NOT need to move apps to the SD card, a partition,ext3/4, is used as apps and data storage and is treated as internal). Use Link2SD only on the stock ROM.
What i mean is that class 6 enough for day to day operation oe gaminf ie better buy class10?
Sent from my E16i using XDA App
The higher's the class ,the better for you
Sent from my E15i using XDA Premium App
amnher said:
I have found 16GB CLASS 6 strontium brand which cost around 26USD. You think 16GB class 10 is a big difference for class 6?16GB Class 10 is still not available now in my area. What do you think? Planning to use it on link2sd/app2sd to focus all my apps on SD
Click to expand...
Click to collapse
http://en.wikipedia.org/wiki/Secure_Digital
Class indicates minimum data rate.
6 = 6MB/s
10= 10MB/s
So it is almost 2x faster
Some of "pro" class 10 have speed over 20MB/s
This isn't a huge difference for using app2sd. You can search in web a test of both sdcards. If the price difference is so big, buy the class 6 one.
darknessx10 said:
Damn, Here in chile you can only buy MicroSD Class 4
Click to expand...
Click to collapse
I got mine from eBay Class 6 16G for about $20 if I remember correctly.
tharaka said:
I got mine from eBay Class 6 16G for about $20 if I remember correctly.
Click to expand...
Click to collapse
here its about 25USD
Guys will our beloved W8/X8 benefit the class 10 speed or it is only for card reader? I mean in terms of gaming. Does class 10 outshines class 6? cause right now Im using a class 2 stock 4GB microsDHC with the write speed of 4.9 MB/s and a read speed of 11.3 MB/s on SD Card tools
You only need a class 10 card if you will be doing 720p video recordings. Since our cellphone can't record in 720p, it is not worth it. If you plan on upgrading your phone soon, then you'd better wait.
i have AData 8GB class 10 card and i pay for it 15$ dollars and worth that money because is very fast and good..
I have AData 16 Gb Class 10 for 28$ and its great =) fast card for good prize.
Class 10 is faster a lot compare with class 6. Because I am always copy files from Office to my laptop everyday, i feel the difference.faster 1.5-3x.
But, our x8 is only run about class 6 speed. So class 10 used on a x8, the speed is only faster about 5-10%.
If you ask my comment, i will still recommend you to buy the class 10,because: it is faster, and the price is not a big difference. maybe few dollars. you still can use the memory card on future phone.
Hmm I had bought a RiData 16GB Microsdhc class 10 worth around 35USD. But when I test with sd tools in market I can get only 9 and if lucky 10.1 most of the time 8.9
Class 10 cards suck at reading a lot of small files (gaming).
but is that normal for class 10? my stock class 2 can go over 3
amnher said:
but is that normal for class 10? my stock class 2 can go over 3
Click to expand...
Click to collapse
that is normal for our x8. my stock class 2 was able to run at around 4mb.
my current kingmax 8gb class 10 able to run at 7-8mb
in pc, that is 14-16mb.
Hi
1.
SD card class 2 works on smartphones like XZ
but is thr any bad effect on phone with low class of sd card?
2.
sd card class 16 ?!?!
is class 16 available?
looks like searching the internet has became so hard these days
https://www.sdcard.org/developers/overview/speed_class/
http://sdcard-speed-guide.articles.r-tt.com/
indycar said:
looks like searching the internet has became so hard these days
https://www.sdcard.org/developers/overview/speed_class/
http://sdcard-speed-guide.articles.r-tt.com/
Click to expand...
Click to collapse
yeah thanks for link
But cause i didn find some topic directly talk about my question i made this thread.
Is There ANY BAD Effect on smartphone because of class of Sd card?
for example some sites recommend class 10 for smartphones but is that mean class 2 will effect badly?
If the speed of the card is too slow when you try to film in full HD you will see.
Sent from my C6603 using xda premium
slower card means slower read/write speeds which affect your photo shooting/video recording, opening apps, etc.
if u put slow sped sd card in nothing will be wrong just things on it will run a bit slower
x102x96x said:
yeah thanks for link
But cause i didn find some topic directly talk about my question i made this thread.
Is There ANY BAD Effect on smartphone because of class of Sd card?
for example some sites recommend class 10 for smartphones but is that mean class 2 will effect badly?
Click to expand...
Click to collapse
When moving files to that class 2 card will be slow, reading files from a class 2 card could lag.
Class 2 minimum of 2MB/s
Class 4 minimum of 4MB/s
Class 6 minimum of 6MB/s
Class 10 minimum of 10MB/s
These are the standards for SD, many cards will perform well above this in the same Class, but after fragmentation etc they have to obviously at least provide the minimum or above to be classified in that class rating.
I don't believe that any card exist's above class 10, although companies may claim the speed LIKE Class 16...(which would be minimum of 16MB/s. My card is Class 10 UHS-1 (Ultra High Speed) which performs up to 95MB/s
thanks
i got my answer and bought class 10 sd card for my xz
I was reading this forum post which claimed that a class 4 card is actually faster than a class 10 card for Cyanogenmod on the microsd card. Is that true? I currently have the 64GB san disk class 10 card (the red/grey one) as my card. It does tend to lag a bit if i'm swiping from one home screen to another. Would a class 4 card give me smoother performance?
http://forums.anandtech.com/showpost.php?p=34988392&postcount=30
If it's a Sandisk class 10, it's probably fine.
What the problem is that Sandisk's class 4 cards often perform better than the class 10 cards from other manufactures like Patriot. I have a class 4 Sandisk and a class 10 Patriot and the Sandisk is superior at 4k performance. But the class 10 Sandisk is probably fine (assuming it's a real Sandisk and not a counterfeit).
Ravynmagi said:
If it's a Sandisk class 10, it's probably fine.
What the problem is that Sandisk's class 4 cards often perform better than the class 10 cards from other manufactures like Patriot. I have a class 4 Sandisk and a class 10 Patriot and the Sandisk is superior at 4k performance. But the class 10 Sandisk is probably fine (assuming it's a real Sandisk and not a counterfeit).
Click to expand...
Click to collapse
Thanks, oh you're Ravynmagi from that same thread eh? Hahaha
Class 10 cards are best for long r/w for large files or a video camera. Most of what the tablet or phones do are shorter r/w and a class 6 or 4 will do fine or even be superior. This is particularly true for cards that are used for part of the operating system. This info was gleaned from experience with Android, NativeSD roms. If you search nativesd + hd2 there much info.
Many of the class 10 labeled cards are mislabeled anyway. A name brand like Sandisk will be more quality tested and properly labeled.
Hello guys, this is my first post here. Instead of starting a new thread, I thought it'll be appropriate to post in a thread about sd cards. I'm planning to buy microsd cards for my new Nook HD+, which is on the way. Does UHS-1 micreosd cards work with Nook HD+? I want to dual boot with cynagen mod on sd card. Which class'll be the best for running android from the sdcard? Also I want to make a back up of my Nook HD+ stock version, what size card is enough for that?
The card that I have in mind is a Strontium 16GB UHS-1 MicroSDHC Card. In its product description it says "Compatible with SDHC and SDXC host devices; not compatible with standard SD-enabled devices/readers" and "Compliant with the new UHS-I specification for ultra-high speed interfaces for SD specifications. Can only be used in UHS-I mode in UHS-I compatible devices." (I can't post link since it's my first post)
I got confused after reading that highest class won't give optimal performance. I hope some one here will help me in this. Thank you.
mashac said:
Hello guys, this is my first post here. Instead of starting a new thread, I thought it'll be appropriate to post in a thread about sd cards. I'm planning to buy microsd cards for my new Nook HD+, which is on the way. Does UHS-1 micreosd cards work with Nook HD+? I want to dual boot with cynagen mod on sd card. Which class'll be the best for running android from the sdcard? Also I want to make a back up of my Nook HD+ stock version, what size card is enough for that?
The card that I have in mind is a Strontium 16GB UHS-1 MicroSDHC Card. In its product description it says "Compatible with SDHC and SDXC host devices; not compatible with standard SD-enabled devices/readers" and "Compliant with the new UHS-I specification for ultra-high speed interfaces for SD specifications. Can only be used in UHS-I mode in UHS-I compatible devices." (I can't post link since it's my first post)
I got confused after reading that highest class won't give optimal performance. I hope some one here will help me in this. Thank you.
Click to expand...
Click to collapse
SanDisk class 4 are the best to use for everything on the HD/HD+. The device does not work reliably with faster cards.
You need about 1.5GB to do a stock backup, so a 2GB is enough.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
SanDisk class 4 are the best to use for everything on the HD/HD+. The device does not work reliably with faster cards.
You need about 1.5GB to do a stock backup, so a 2GB is enough.
Click to expand...
Click to collapse
Thanks leapinlar for that quick reply. So, a 16 or 32GB class 4 sandisk card for the dual boot and another 2GB card for the stock backup is all I need. Thanks again.
The "class' rating is only a measure of large sequential write performance, as in using it for an HD video camera. The class rating has no bearing at all on random access speeds or small reads and writes. Many sandisk class 4's have faster small random read/write performance than many class 10 cards, but its worthwhile to look at benchmarks for a card you're looking at or a list of top cards for tablet/phone usage that keys on small random read/write performance for optimal performance.
In fact, the sd card market is loaded with class 10 cards that stink at pretty much every other measure than large sequential writes.
SD cards 16G and larger are only made as class 10 devices. Properly formatting the SD card will improve it's performance.
Onageric said:
SD cards 16G and larger are only made as class 10 devices. Properly formatting the SD card will improve it's performance.
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Click to collapse
No they are not. Here is a 32GB class 4 SanDisk available http://www.mymemory.co.uk/Micro-SDHC/SanDisk/SanDisk-32GB-Micro-SD-(SDHC)-Card---Class-4
artesea said:
No they are not. Here is a 32GB class 4 SanDisk available http://www.mymemory.co.uk/Micro-SDHC/SanDisk/SanDisk-32GB-Micro-SD-(SDHC)-Card---Class-4
Click to expand...
Click to collapse
To be more specific - SD cards 16G and greater are manufactured to meet class 10 standards. To get the most money from their products the production line is optimized to make the fastest and most expensive product. Products that miss the QC marks for "A" grade (class 10) will/should easily pass "B" grade (class 4) specifications. The class 10 data bus can run at faster speeds than a class 4. It can also
r u n s l o w e r, meeting fully the class 4 specifications. Often manufacturers will mark their perfectly good class 10 products as class 4 to fulfill market demands. Think making money.
Onageric said:
Often manufacturers will mark their perfectly good class 10 products as class 4 to fulfill market demands. Think making money.
Click to expand...
Click to collapse
It's seems to be true. Bought "Exployd 4 class micro SD" and it's running at 10 class speed at read/write (always over 12Mb).
See this thread http://forum.xda-developers.com/showthread.php?t=1005633 for extensive discussions of comparative performance of different vendor/model SD-cards. For the purpose of running ROMs, look out for cards with high throughput in randomized read/write access, not in sequential read/write access.
FWIW, I am using exclusively Sandisk class 4, having had terrible results (lots of Wait & Force-Close) with class 10 and 6 cards from a mix of vendors.