01-12-2016 01:52 PM
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  1. Haalcyon's Avatar
    Farish, I'm sorry that what you've read tells you differently but I have both the Sandisk Ultra and Extreme micro SD cards. Both in the phone and via USB my 64GB Extreme is consistently, easily, and noticeably faster in reads and writes than the 64GB Sandisk Ultra I have. Do you believe the Sandisk Ultra I have is defective, my Extreme is performing better than it should be or something is wrong with my S4 that would explain the gelow graphs? I may not be getting the UHS speeds of 80 MB/s on the Extreme but I'm getting way better performance (nearly 2x write speed) than my class 10 Ultra.


    This is the SD Tools graph for the my 64GB Sandisk Extreme

    Which Class/Speed SD Card for Galaxy S4-samsung-samsung-sgh-i337-2013-08-03-20-19-36.jpg

    This is the graph for my 64GB Sandisk Ultra

    Which Class/Speed SD Card for Galaxy S4-samsung-samsung-sgh-i467-2013-08-03-17-16-26.png

    The difference is tangible as the Extreme writes nearly 2x faster at 14.6MB/s and reads noticably faster as well as is shown.
    08-29-2013 04:43 PM
  2. Farish's Avatar
    Farish, I'm sorry that what you've read tells you differently but I have both the Sandisk Ultra and Extreme micro SD cards. Both in the phone and via USB my 64GB Extreme is consistently, easily, and noticeably faster in reads and writes than the 64GB Sandisk Ultra I have. Do you believe the Sandisk Ultra I have is defective, my Extreme is performing better than it should be or something is wrong with my S4 that would explain the gelow graphs? I may not be getting the UHS speeds of 80 MB/s on the Extreme but I'm getting way better performance (nearly 2x write speed) than my class 10 Ultra.


    This is the SD Tools graph for the my 64GB Sandisk Extreme

    Click image for larger version. 

Name:	samsung samsung-sgh-i337 2013-08-03 20-19-36.jpg 
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    This is the graph for my 64GB Sandisk Ultra

    Click image for larger version. 

Name:	samsung samsung-sgh-i467 2013-08-03 17-16-26.png 
Views:	29 
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ID:	78651

    The difference is tangible as the Extreme writes nearly 2x faster at 14.6MB/s and reads noticably faster as well as is shown.
    My 25/10 vs your 20/15 is not that huge. I get about the same as you with my Samsung sd card. My point is without UHS you aren't going to get better because of bus limitation s.

    Sent from my SAMSUNG-SGH-I467 using AC Forums mobile app
    08-29-2013 06:04 PM
  3. AcemanX AcemanX's Avatar
    My 25/10 vs your 20/15 is not that huge. I get about the same as you with my Samsung sd card. My point is without UHS you aren't going to get better because of bus limitation s.

    Sent from my SAMSUNG-SGH-I467 using AC Forums mobile app
    what is your samsung card, the pro? thats 70/20?
    10-04-2013 07:45 PM
  4. jmgilliam's Avatar
    Would like to know the type of Samsung card too. I've decided to go Samsung, but is it worth it to get the Pro vs the Plus version. The Pro says 70/20 and the Plus says 48... On an S4 would you realize the difference in the two cards?

    Thanks.
    10-22-2013 11:06 PM
  5. jhsa's Avatar
    Hey guys, hello to all.. It's my first post here and I hope I'm doing it on the right thread.

    I own a Samsung Galaxy S4 mini and I installed a 32Gb class4 SD Card..
    The problem is that when recording videos at full resolution, the picture sometimes has some kind of digital noise (don't know the right word), the colors get mixed up and the picture distorted, every few seconds. I think this happens more on longer videos. If I lower the resolution the videos are better but sometimes it happens also in longer videos.. Could this be the card being a class4?
    Thank you in advance for your answers..
    12-27-2013 11:20 AM
  6. Tori Sim's Avatar
    You can also search online Wholesale prices for Micro SD Cards - for example - DHGate dot com has Samsung Micro SD Card 32GB Class 10 for $11.96 + free shipping from China delivers within 3 weeks to your door I've ordered many things from them, and although their packaging for shipments are not the greatest - they do deliver a great product and a great deal too
    12-29-2013 11:53 AM
  7. jhsa's Avatar
    Thanks.. Will have a look. Just had to format the card I have in the phone at the moment.. I had to restart the phone and when it came back on, it said that the card was bad..
    01-03-2014 06:33 PM
  8. fokka85's Avatar
    Hello there! I'm from Argentina and i can't get a Micro SD class 6 for my Samsung Galaxy S4 mini. What do you recommend? A class 4 or a class 10?
    Thanks in advance!
    01-30-2014 02:41 PM
  9. ricksinn's Avatar
    Well LoganK you made it simple and simply wrong. The reverse is true of your statement "In general, the higher the class rating, the slower the card will be for general access". Please go to the following web site and they can fill you in on the facts. Sorry you will have to copy and paste this as I didn't see a way to put a link in this forum which would be extremely efficient. Here it is https://www.sdcard.org/developers/overview/speed_class/
    Hope this helps everyone with their question of storage cards.

    RickS out
    03-05-2014 05:24 PM
  10. ricksinn's Avatar
    Well LoganK you made it simple and simply wrong. The reverse is true of your statement "In general, the higher the class rating, the slower the card will be for general access". Please go to the following web site and they can fill you in on the facts. Sorry you will have to copy and paste this as I didn't see a way to put a link in this forum which would be extremely efficient. Here it is url]https://www.sdcard.org/developers/overview/speed_class/[/url

    Hope this helps everyone with their question of storage cards.

    RickS out
    03-05-2014 05:28 PM
  11. syfimalik7's Avatar
    I'm using galaxy S4 9505 and I'm using SanDisk ultra micro sdxc UHS-I speed upto 80 mb/s. It works fine and pretty good.
    01-12-2016 01:52 PM
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