Saturday, September 25

How to choose one of the best microSD cards for your cell phone or tablet | Digital Trends Spanish

If you run out of storage space on your phone or tablet, you’ll want to find a way to increase it. One of the easiest options is to insert one of the best microSD cards that supports your device – and your wallet. Unfortunately, not all devices have a slot. If you own an iPhone or an iPad, you are not so lucky.

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Fortunately, some of the best Android phones and tablets do support them, although if you are the owner of a Samsung Galaxy S21, you might be disappointed to note that Samsung has removed the microSD card slot on its latest model.

Better to fully understand how to use a microSD to get the most out of it. To see if your device accepts them, check your phone’s full specifications on the manufacturer’s website or find a slot for your device. In newer phones, they are usually part of the SIM tray.

We picked six of the best microSD cards for smartphones, from casual to professional use. You may want to look beyond this list, but we recommend sticking to well-known brands like Samsung, Lexar, SanDisk, Toshiba, and Kingston.

32GB SanDisk Extreme


Here’s a fast SDHC card that offers read speeds of up to 100MBps and write speeds of up to 60MBps. This is a durable card with a lifetime guarantee in most regions and the reviews are overwhelmingly positive.

You won’t have a problem with 1080p video and it can even handle 4K, although you may want a higher capacity one if you’re buying it for that. It is UHS Speed ​​Class 3, V30 and A1 certified for Adoptable Storage. It also comes with a handy SD adapter.

Samsung Evo Plus 64GB

64 gigabyte Samsung microSD card and SD card adapter.

This SDXC card is UHS 3 rated and offers a write speed of up to 100MBps. It is a durable and reliable microSD card with many positive reviews.

It is fast and efficient to use on cell phones and tablets and you will have no problem recording 1080p videos, but you should opt for another card if you are recording in 4K. Ultimately, it’s a great all-rounder at a reasonable price.

128GB Lexar Professional

128 gigabyte Lexar microSD card and SD card adapter.

For consumers looking for fast-acting microSD memory with reasonable capacity, this Lexar drive is an ideal choice. The product is a UHS 3 rated SDXC card that also supports up to 270MBps read speed.

This card can support 4K video recording with ease; just make sure the video has a minimum sustained write speed of 90MBps. If you are the friend who always seems to be shooting videos on your mobile device, you will find it to be a great combination. If our word isn’t enough, check out the sea of ​​good reviews online to back it up.

256GB Kingston Canvas Select Plus

Kingston 256 gigabyte microSD card and SD card adapter.

This UHS 3 card is A1 rated, so it is optimized for use on Android Cellphones. It supports up to 256GB at a cost that suits many budgets and can easily support 1080p video recordings.

Unfortunately, this card does not have a write speed capable of running 4K video recordings, but it does have an improved read speed of up to 100MBps. Your purchase also includes an SD adapter.

512GB PNY Pro Elite

The PNY Pro Elite 512GB microSD card.

If you’re not sure if you need 1TB of storage, but 256GB seems like too little, this 512GB microSD card from PNY is the perfect middle ground. It is true that it is not the fastest, with read speeds of up to 100 MBps and write speeds of up to 90 MBps, but it is a great option for your phone, since you can run applications directly from the microSD card.

Its U3 and V30 ratings mean it can handle 4K video, although if this is your main reason for buying the card, we recommend upgrading to SanDisk Extreme 1TB. It is also resistant to water, shock and magnets, making it a great option if you frequently change your card between devices.

1TB SanDisk Extreme

1 terabyte SanDisk microSD card.

If your top priority is storage, look no further than the 1TB option from the Sandisk Extreme line. This product comes with expanded space options, and its UHS 3 and V30 speed class ratings mean that it is capable of handling 4K video recording with ease.

The card’s read speeds are around 160MBps and its write speeds reach up to 90MBps. You will need to ensure that your device is fully compatible with maximizing that potential performance.

In addition to all these great performance features, the card also received one of the highest possible A2 ratings for its storage capabilities on Android devices.

What to consider when buying a microSD card

There are a few things to consider when choosing a new microSD card for your phone. Obviously, price and capacity will be factors, but you should also make sure that the type of card you buy is compatible with your device and that it is suitable for your needs.


SDHC stands for Secure Digital High Capacity and SDXC stands for Secure Digital Extended Capacity. The only real difference is the range of data they can store. You’ll see that SDHC microSD cards range from 2 to 32GB in size, while SDXC microSD cards can range from 32GB to 2TB, although the largest microSD card we’ve seen so far is 1TB.

Speed ​​class classifications

You will probably come across a large number of combinations of numbers and symbols printed on cards and their packaging. These are speed class indicators that refer to the minimum sustained write speed of a microSD card.

Write speed tells you how fast data can be saved to the card and is expressed in megabytes per second (MBps). This is useful to keep in mind when purchasing it for certain use cases, such as video recording.

There are currently three classifications: Speed ​​Class, UHS Speed ​​Class (Ultra High Speed), and Video Speed ​​Class. The original speed class is indicated by the write speed enclosed in a large “C”, while the UHS speed class is shown by a class number within a large “U”.

The mark for the video speed class is a stylized “V” followed by the write speed. Here’s how the minimum speeds are broken down for the different classes.

Class Minimum write speed
2 2 MBps
4 4 MBps
6 6 MBps
8 8 MBps
10 10 MBps
UHS 1 10 MBps
UHS 3 30 MBps
V6 6 MBps
V10 10 MBps
V30 30 MBps
V60 60 MBps
V90 90 MBps

Most reputable microSD cards these days will have at least a Class 10 write speed rating. These are only minimal requirements, and many cards are capable of faster speeds than their rating.

A class 10 card can deliver 95 MBps, for example. Read or transfer speeds are likely to be respectable (around 100MBps) on many options as well.

Application performance class

The SD Association also has a standard called Application Performance Class, which is designed to highlight microSD cards that are suitable for use in cell phones and tablets.

The A1 rating means that the card can handle 1,500 random read input-output access (IOPS) and write 500 IOPS. The A2 rating indicates 4,000 random read input-output access per second (IOPS) and write IOPS of 2,000.

This is ideal for opening applications and processing tasks quickly. These A1 and A2 cards are worth considering if you intend to format your card as internal storage on an Android device, something Google calls “Adoptable Storage”.

Choosing a microSD card for your needs

If you are simply focused on adding storage capacity for downloaded files and casual images and videos, the lower Speed ​​Class ratings will work well for your phone or tablet.

Content creators who shoot a lot of videos should look for high-end UHS and Class 10 microSD cards, at a minimum. These will be better equipped to handle 4K resolutions and high frame rates of 60 or 120 FPS. Advanced Android users may consider cards with the designation Performance Class App.

In any case, you obviously want the highest speed and capacity microSD card you can get for the lowest price. We recommend that you consider brand reputation and reported performance and reliability.

Check the warranty terms, in case something goes wrong. You should also be careful where you shop. If you are going to use Amazon or eBay, read some customer reviews and beware of fake microSD cards because they are disappointingly common.

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