Top 10 Best MicroSD Memory Cards

We test the latest MicroSD, MicroSDHC, MicroSDXC memory cards to find out which is the fastest.

|  Professional SDHC 600x 32GB Class 10 U:1 in Memory Cards
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If you're looking for a new MicroSD card for your camera, smartphone, or tablet, then it would make sense to buy the fastest and most reliable card available. Here's what 688GBs of MicroSD storage looks like:

Best MicroSD Cards

Here is a list of all the cards we have tested, sorted with the quickest average speeds at the top. We tested these cards using a MicroSD USB3 UHS-II card reader to get the fastest possible performance, using CrystalDiskMark. 


We tested the fastest UHS-I and UHS-II cards available to us. To make the most of the high speed available with UHS-II cards, you'll need a camera or device compatible with UHS-II cards, as well as a memory card reader that supports UHS-II. UHS-II cards can be used in UHS-I cameras and card readers, but you won't get the benefit of the additional speed. On the left, above, you can see the extra contacts on the UHS-II card.


Top10 Best MicroSD Cards 2015

When taking photos write speeds are the most important, as this is the speed at which a device such as a digital camera or smartphone can write photos to the memory card, if this is slow, then it may slow down your shot to shot time or the amount of photos you can continuously take. The read speed is important for when you want to view the photos or copy them onto a computer or another device.

  MicroSD Card Tested: Write MB/s Read MB/s Average Recovery Software Buy
1 Lexar Professional UHS-II 64GB 64.72 195.2 129.96 Yes Buy
2 Sandisk Extreme Pro 16GB 81.3 94.68 87.99 x Buy
3 Samsung PRO Plus 64GB 82.34 93.35 87.84 x Buy
4 Transcend Ultimate 633x 64GB U:3 82.19 93.37 87.78 Yes Buy
5 Samsung EVO Plus 256GB  80.95 90.48 85.71 x Buy
6 Toshiba XCERIA 64GB  45.11 94.12 69.61 x Buy
7 PNY Turbo 32GB 42.08 93.48 67.78 x Buy
8 Sony 64GB 69.58 65.13 67.35 x Buy
9 Lexar 633x 32GB U:3 41.5 85.88 63.69 x Buy
10 Integral ultima PRO X 32GB U:3 31.33 92.48 61.90 x Buy
11 Sandisk Ultra 16GB U:1 11.9 45.61 28.75 x Buy

Another important factor to consider is warranty and reliability, ideally, you would want the most reliable card possible so that your photos are never lost, however, if the card does fail then a long warranty will mean that the manufacturer should replace or repair your card. Although recovery of images is unlikely when a card fails physically, recovery software is available to help recover accidentally deleted files, and some of these cards come with free recovery software. 

Reliability can't be determined on new cards, as it could take a long time for the card to fail if it ever does. Although, one thing to consider is how durable the card is, and if you look at Samsung cards, they are waterproof, shockproof, magnetic proof and come with a 10-year warranty so should survive much more Mis-treatment than others, as we found out in our test of one of their microSD cards.

Our top picks:


If you're looking for the fastest SD card, have a look at our Top 10 Best SD Memory Cards.

Find out more about memory cards, in our complete guide to memory cards.

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Buy Now

Lexar Professional 633x 128GB SDXC UHS-I Card Lexar Professional 633x 128GB SDXC UHS-I Card BUY NOW $19.77

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Big Bri 18 16.5k United Kingdom
3 Aug 2017 8:37AM
Was the Lexar the only UHS-II card tested? If so, perhaps a slightly biased review, since speed is the only thing tested.
joshwa Plus
9 903 United Kingdom
3 Aug 2017 8:54AM
Hi Bri, the Lexar is only the fastest for read speed, with the UHS-I cards giving better write speeds.
Big Bri 18 16.5k United Kingdom
3 Aug 2017 9:07AM

Quote:Hi Bri, the Lexar is only the fastest for read speed, with the UHS-I cards giving better write speeds.

Ah yes, I see now. I completely misread the graphic and got write and average the wrong way round.

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