FWIW: I run a class 10 16GB purchased at a local store: Microcenter. Micro Center - Computers, Electronics, Computer Parts, Networking, Gaming, Software, and more!. I think it was $28.

You may be able to do better on Amazon, I'm not sure.

I would go with a name brand card, and I would go with a CL10. Likely, if you use it in another device, faster is generally better. The price difference should be immaterial at this point between a 6 and 10.

 

Living now in Florida, I miss Microcenter. It was my favorite computer outlet. Everytime I visit friends in the Northeast I drag them to the store with me. Then I walk out with two bags of goodies!

On MicroSD chips, I use Transcend Class 6 4GB, but I'll be upgrading to the 16GB myself. The Patriot brand doesn't seem to work in Android, from the reviews. I've used Sandisk and they work well.
I think you'll be safe with a Class 6, but a Class 10 doesn't cost much more and you might see the difference in the transfer times to your computer.

 

Right, if you are moving a lot of stuff from phone to PC or back (I prefer using FTP (SwiFTP for the phone, and FileZilla for the PC)), yes. Also, the class of the card could impact video recording top-speed. Not positive there, but with the CL10 cards in the $24-28 range, why go with a CL6 card?

 

If you are going to be recording HD Video I wouldn't get anything but a class 10.

 

adata 32gb class 10 wrks for me, fwiw.

 

I've seen some 32gb cards on ebay for around $20, question is will they really work?

 

I actually just bought the 16 GB PNY class 10 micro sd card. I just ran a benchmark using Antutu and i got an sd card read score of 15.7 MB/s and write score of 10.7 MB/s.

 

If your looking for the best..
Newegg.com - ADATA 32GB Micro SDHC Flash Card with Adapter Model AUSDH32GCL10-RA1

It works great with MT.

 

Darn, they ran out! Must have been a great deal/item.

 

Somewhere, can't put my fingers on it... maybe in the Motorola Owners forum, people are indicating that PNY cards may present problems. I use a 16GB Adata card, CL 10 and it is working well for me.

 

I had no problems with the 32GB PNY class 10 in the Triumph.

 

I am late to the party for this question, but find a lot of people spending more than they need to on cards. Not long ago I bought a Kodak "flip" style video camera that will do 1080HD. They provided a small CL6 card with it and everyone said you needed a 10. I talked to the Kodak engineer and he said CL6 was all that was needed, and in fact, all the buss was rated for.

I have been having this "faster memory" argument since I put DIPS in the first PC in '83. The card won't be written to faster than it was programmed to write and a faster card doesn't accomplish anything over a card that is fast enough.

if a Kodak can write 1080HD data to a CL6 card, then a phone can too. There is in fact less data being written (read slower) than on the Kodak.

If you are going to bump up the clock, then maybe it will write to the buss quicker, all depends on the architecture, but I still wouldn't buy more than a CL6 card for this application.

 

Do Cl10 cards generally write & read faster via USB transfers to a desktop? Sometimes I move several or 10 or 20 GB of music or video and it can take "a long while".

 

You are right about some of this but not all of what you say is true.

First is the understanding your phone is built with some regulations. This is so your phone has a more consistent experience (mostly for battery life) and also to help with heating problems in the long run. One things phone do to stabilize both of those things is they regulate voltages. They do this for the cpu, ram, gpu and Microsd port. The reason this can become a problem for speed with Microsd cards is that they do not have a standard rating of operating voltage for each card. Each card could need a different amount of voltage to run at optimal performance. Usually that means faster cards will perform only at rated speeds if it gets the appropriate amount of voltage. If you go to this link you will see the Micro SDHC standard has a range of voltage ratings. Now when your phone manufacture builds and tests there phones in order for them to make battery life better and to allow them coincide with other heat producing chips they have to regulate the microsd card slot to an average Microsd performance vs overall system performance ratio. Since this is a phone and most people will not be able to see a difference in a class 4 and a class 6 speed the voltage is set kind of low. If you take an 4gig class 6 sdhc card and do a speed check against a 8gig class 6 card you will get the same speed usually. This is because 8 gig cards use more voltage because they are more condensed and a higher voltage is needed to run at rated speeds for this card. Now since phone manufactures and card makers are very secret about there specs it's impossible to know if this is being worked on. I do know that there is one microsd card manufacture that just released a line of microsd cards optimized for phones. These are higher storage cards with lower voltage ratings. That means you have a better chance of getting the high speed from them on your phone. Also it's hard to say if phone manufactures aren't bumping up the voltage on there slots due to 1080p recording and the need for extra speed. There needs to be a thorough test done. There is some good info here about multiple cards and there performance.

Also I just found this. I haven't read through it yet but I think this pdf from transcend might shed some light on this as well http://www.transcendusa.com/support/dlcenter/datasheet/TS16GUSDHC6.pdf

Oh and also the reason why your Kodak can record 1080p video onto a cl6 card is because your camera' is not optimized to be a phone. Meaning that it's not looking to suck down the least amount of voltage over the entire day. Since it's only on for small periods of time and needs performance over battery life the micro sd card slot is not going to be inhibited by voltage regulation. Also I bet your Kodak has a higher average bitrate then the 1080p video that is being produced on these phones. Also something that is possible but probably not likely is that a phone recording at 1080p the video is buffering and probably being temporary stored on your internal memory (which is faster then your microsd card usually) and then get's thrown on your sd card. That's just a theory though.

 

The higher the class the faster the write speed.

Class 2 2 MB/s
Class 4 4 MB/s
Class 6 6 MB/s
Class 10 10 MB/s

 

Only if you plug your microsd card into a media reader not if it's being transferred with the phone. The speeds will vary per device and specifications of the card and the rating does not always stand true.

Also in my earlier post I mentioned about 1080p video being sent to internal memory for buffer but then I forgot most phones with 1080p video have 768mb of ram or more. So the ram can be used as a buffer. It can also be used as buffer before compression and after compression. 100mb of uncompressed video should be good enough to handle the video stream in real time. The dual core cpu's should be able to compress that quickly enough. Then another 100mb of buffer for the compressed video so it doesn't have to transfer the video in real time to your device it the device some room to save energy on running a faster card. If this isn't how they handle 1080p video recording on phones it should be. The reason I can see why regular camera's don't handle video like this is that it would more expensive to add more ram and would just work out better to force the consumer to get a faster card.

 

Those are the write speeds that SD cards are capable of attaining, I made no claim against any device. Just stating what the classes are capable.

 

Here's a pretty good deal (finally, one that didn't sell out before I got there) on a microsdhc class 10 16gb card at meritline: click for link, but first:
If you haven't already, check out Mrrebates, which is free to join - I have embedded my referral code if you don't mind - click on the Meritline store link inside mrrebates, you will get an additional 3% cash back via check or paypal. I also use ebates for similar cash back deals, but they don't have meritline as a vendor. Both have brownie points for referrals and a ton of stores to get cash back at - remember to visit the store through the service's clickable links.

 

You are better off with this one by ADATA. Not only is it a better quality brand but it's cheaper. Class speed doesn't matter when it comes to phones.

ADATA 16GB MicroSDHC Card (Class 4) with adapter,AUSDH16GCL4-RA1

 

Has anyone confirmed that going to a class 10 from a class 4 improves the "Skippy" video while panning? My friends Iphone takes much smoother video and was wondering if going to the class 10 will actually improve the Triumphs video so it is "smoother" when panning.

Bob

 

I was going to say that the Adata cards are back at Newegg. I checked today and It let me add it to my cart and order which I did. I went to check the item again on their webpage and now it says out of stock could I have gotten the last one?

Newegg.com - ADATA 32GB Micro SDHC Flash Card with Adapter Model AUSDH32GCL10-RA1