Our smartphone has little internal memory (8 or 16 GB) and we don't know how to recover space for photos and videos "> Choose the best MicroSD for Android smartphones On the microSD there are various symbols and icons that allow users to identify the class of the memory card, so as to have a clear picture of the minimum speed that can be reached in reading and writing. Obviously the higher the class, the higher the speed of the card and the shorter the waiting times when we record a video or save a large number of files (in particular high definition photographs). A graphic summary of the available classes and their respective symbols can be seen below.
The first column on the left identifies the minimum guaranteed speed, the second column the speed expressed in classes, the second column the speeds expressed in UHS classes while the last column expresses the speed expressed in "video values". Each class has its own specific meaning and we can use one based on the scenario in which we must use the microSD card.
- Saving generic files : any microSD with at least class 6 is fine
- Saving photos and videos in FullHD : we will have to focus on a class 10 microSD card, UHS class 1 and video class V10.
- Saving photos and videos in 4K : in this case we will have to focus on a UHS class 3 microSD with video class V30 or V60, so as to have enough speed to save videos in ultra other definition.
- 8K video saving : for the videos of the future it is possible to focus on the faster video cards, currently identified as video class V90.
In addition to the speed of the microSD card itself, to get the best results we will also have to check the speed of the bus that exchanges data with the device in which the card is used, so that you can really make the most of it. A graphic summary of the bus classes available for microSD cards is shown below.
In order to obtain the best performance, we make sure that the device chosen supports the UHS-I or UHS-II bus classes and that the symbols are present in the device package or box, only in this way will we be able to take full advantage of the microSDs that have the requirements of speeds expressed by the classes seen above. Inserting a V90 microSD into a smartphone that only supports a High Speed bus will not allow you to take advantage of the high speed of these memory cards.
Quick microSD purchase guide
Now that we have seen how to recognize the fastest microSD cards through the graphic symbols on their body, let's see together some of the fastest microSD models that can be purchased online at very competitive prices.
Remember that fast microSD cards are often accompanied by very high amounts of memory, so that you can easily save any type of video or photo.
1) 32 GB SanDisk Ultra MicroSDHC
The first economic model that we can see to obtain a fast and very low price microSD is the SanDisk Ultra with 32 GB of memory; this card supports the UHS-I bus and is certified as class 10 U1. The speed is good enough to be used for photos and short HD videos.
We can view this memory card from here -> 32 GB SanDisk Ultra MicroSDHC (16 €).
2) 64 GB Kingston
Another video card that we can use for our smartphones or for devices that support memory cards is the Kingston 64 GB memory MicroSDHC / SDXC card. This card supports the UHS-I bus and is certified as class 10 U1. The Kingston are very long-lasting, always have high read and write speeds and the recommended model allows you to record videos and photos even in HD without any problem.
We can view this memory card from here -> Kingston 64 GB MicroSDHC / SDXC card (10 €).
3) Samsung 64 GB MB-ME64GA EVO Memories
The first medium-high end microSD card that we recommend is the 64 GB Samsung PRO Plus. This Samsung card supports the UHS-I bus and is certified as class 10 U3, therefore much faster than the models seen so far. This card is ideal for saving videos in HD and for saving photos at the highest quality.
We can view this memory card from here -> Samsung Memories MB-ME64GA EVO (44 €).
4) Samsung EVO 128 GB
If we need a lot of space for our smartphone or device, we can focus on the 128 GB Samsung EVO Plus microSD card, with all the space we need to save photos, videos and more.
The Samsung card in question supports the UHS-I bus and is certified as class 10 U3, thus maintaining a good speed in reading and writing.
We can view this memory card from here -> Samsung EVO Plus 128 GB (30 €).
5) SanDisk Extreme PRO 64GB
The first high-end microSD card intended for professionals is the SanDisk Extreme PRO 64GB. This card supports the UHS-I bus and is certified as class 10 U3 V30, therefore optimized to save videos in FullHD at very high speeds while maintaining good speed even for videos in 4K.
We can view this memory card from here -> SanDisk Extreme PRO 64GB (30 €).
6) 64 GB Delkin Devices
If we are looking for a microSD optimized for 4K videos we can focus on the 64 GB Delkin Devices, which boasts the UHS-II bus and is certified as class 10 U3 V60, one of the best classes available at the moment, with speeds so high that it can save 4K video smoothly.
We can view this memory card from here -> 64 GB Delkin Devices (70 €).
