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Best Buy customers often prefer the following products when searching for memory card for smartphones.

If you're a smartphone user, you've probably noticed that your phone's storage is limited. If you want to take photos, videos, or save other files, you'll need to make room for them somewhere. Fortunately, there are plenty of ways to expand your phone's storage capacity. Browse the top-ranked list of memory cards for smartphones below along with associated reviews and opinions.

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  1. SanDisk - Extreme 256GB microSDXC UHS-I Memory Card for Gaming - Front_Zoom
    Top comment

    "Very good very good memory card good for DJI in steam deck...Memory card...Sandesk Memory card always, very reliable and good price."

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    Product Description

    Optimized for mobile gaming, the 256GB Extreme UHS-I microSDXC Memory Card from SanDisk features a storage capacity of 256GB and supports maximum read speeds of up to190 MB/s and maximum write speeds of up to 130 MB/s. This card has also been designed with the V30 Video Speed Class rating, which guarantees minimum write speeds of at least 30 MB/s. All of this allows for users to immerse themselves in AAA, 3D, and VR gaming, as well as extreme sports videography and photography at resolutions of Ultra HD 4K (3840 x 2160) and Full HD (1920 x 1080). While this card has been designed for cameras that are UHS-I / V30 compatible, it may be used in devices that do not support UHS-I / V30. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-I and U3, which also support minimum write speeds of 30 MB/s, UHS-I and U1, which support minimum write speeds of 10 MB/s, or Class 10, which also supports minimum write speeds of 10 MB/s. Aside from support for UHS-I, V30, and U3, SanDisk also built this card with support for the Application Performance Class 2 (A2) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A2 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions. As with most SanDisk media, this memory card is able to withstand temperatures from -13 to 185°F, allowing you to take this card with you into extreme environments, such as snow and deserts. Protection is provided by a limited lifetime warranty.
    See all microSDXC
    Top comment

    "Very good very good memory card good for DJI in steam deck...Memory card...Sandesk Memory card always, very reliable and good price."

    See all customer reviews

    Product Description

    Optimized for mobile gaming, the 256GB Extreme UHS-I microSDXC Memory Card from SanDisk features a storage capacity of 256GB and supports maximum read speeds of up to190 MB/s and maximum write speeds of up to 130 MB/s. This card has also been designed with the V30 Video Speed Class rating, which guarantees minimum write speeds of at least 30 MB/s. All of this allows for users to immerse themselves in AAA, 3D, and VR gaming, as well as extreme sports videography and photography at resolutions of Ultra HD 4K (3840 x 2160) and Full HD (1920 x 1080). While this card has been designed for cameras that are UHS-I / V30 compatible, it may be used in devices that do not support UHS-I / V30. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-I and U3, which also support minimum write speeds of 30 MB/s, UHS-I and U1, which support minimum write speeds of 10 MB/s, or Class 10, which also supports minimum write speeds of 10 MB/s. Aside from support for UHS-I, V30, and U3, SanDisk also built this card with support for the Application Performance Class 2 (A2) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A2 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions. As with most SanDisk media, this memory card is able to withstand temperatures from -13 to 185°F, allowing you to take this card with you into extreme environments, such as snow and deserts. Protection is provided by a limited lifetime warranty.
    See all microSDXC
    See all microSDXC
  2. Samsung - Pro Plus  512 GB microSDXC Memory Card - Front_Zoom

    Model: MB-MD512SA/AM
    SKU: 6540985
    Top comment

    "Affordable, Dependable Memory...A good choice in a crowed field of micro memory cards....A very useful addition for smartphones"

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    Product Description

    Your new go-to card + adapter combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    Top comment

    "Affordable, Dependable Memory...A good choice in a crowed field of micro memory cards....A very useful addition for smartphones"

    See all customer reviews

    Product Description

    Your new go-to card + adapter combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    See all microSDXC
  3. Samsung - EVO Plus 256GB microSDXC UHS-I Memory Card with Adapter - Front_Zoom
    Top comment

    "Samsung memory cards recommended....Good memory card from good reputation manufacturer for its famous tablets, phones, cameras, that's all. ...Memory storage...Do you need a good safe card to trust to your memories, this is it."

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    Product Description

    The Micro SD Memory Card EVO Plus + Adapter gives you the freedom to do more. Store huge files, load games, and download the latest apps at lightning-fast speeds. Plus, it’s designed to be incredibly durable, resistant to water, high temperatures, magnets & more. All with the performance and reliability you expect from the world’s #1 flash memory brand.
    See all microSDXC
    Top comment

    "Samsung memory cards recommended....Good memory card from good reputation manufacturer for its famous tablets, phones, cameras, that's all. ...Memory storage...Do you need a good safe card to trust to your memories, this is it."

    See all customer reviews

    Product Description

    The Micro SD Memory Card EVO Plus + Adapter gives you the freedom to do more. Store huge files, load games, and download the latest apps at lightning-fast speeds. Plus, it’s designed to be incredibly durable, resistant to water, high temperatures, magnets & more. All with the performance and reliability you expect from the world’s #1 flash memory brand.
    See all microSDXC
    See all microSDXC
  4. SanDisk - Extreme PLUS 64GB microSDXC UHS-I Memory Card - Front_Zoom

    Model: SDSQXBU-064G-AN6MA
    SKU: 6495764
    Top comment

    "So perfect to camera, Smartphone and Nintendo, works really good!!...Good with memory transfering and compatible with not only phone but also with mobile devices. "

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    Product Description

    Store high-quality images with this 64GB SanDisk SDSQXBU-064G-AN6MA Extreme Plus MicroSDXC memory card. Shot speeds of up to 90 MB/sec. allow fast photo and video processing, while the 64GB capacity holds large media files. Featuring QuickFlow technology and read speeds of up to 200 MB/sec., this SanDisk Extreme Plus MicroSDXC memory card supports fast data transfer.
    See all microSDXC
    Top comment

    "So perfect to camera, Smartphone and Nintendo, works really good!!...Good with memory transfering and compatible with not only phone but also with mobile devices. "

    See all customer reviews

    Product Description

    Store high-quality images with this 64GB SanDisk SDSQXBU-064G-AN6MA Extreme Plus MicroSDXC memory card. Shot speeds of up to 90 MB/sec. allow fast photo and video processing, while the 64GB capacity holds large media files. Featuring QuickFlow technology and read speeds of up to 200 MB/sec., this SanDisk Extreme Plus MicroSDXC memory card supports fast data transfer.
    See all microSDXC
    See all microSDXC
  5. SanDisk - Extreme PLUS 32GB microSDHC UHS-I Memory Card - Front_Zoom

    Model: SDSQXWG-032G-ANCMA
    SKU: 9387066
    Top comment

    "Great Storage for mobile Devices...This SD Card is perfect for my smartphone, great speed and perfect for videos and big size files....Excellent choice to all of my home smartphones...No matter what, smartphones are part of our life and need more and more memory/space - grabbed 4 memory MICRO SD cards on ThanksGiving and all my smartphones got upgraded with high memory/"

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    Product Description

    Get extreme speeds for fast transfer, app performance, and 4K UHD with the SanDisk Extreme PLUS microSDXC UHS-I Memory Card. Ideal for your Android smartphone, action cameras or drones, this high performance microSD does 4K UHD video recording, Full HD video, and high-resolution photos. The SanDisk Extreme PLUS microSDXC memory card reads up to 170MB/s and writes up to 90MB/s. It’s also A2-rated for fast app performance.
    See all microSDHC
    Top comment

    "Great Storage for mobile Devices...This SD Card is perfect for my smartphone, great speed and perfect for videos and big size files....Excellent choice to all of my home smartphones...No matter what, smartphones are part of our life and need more and more memory/space - grabbed 4 memory MICRO SD cards on ThanksGiving and all my smartphones got upgraded with high memory/"

    See all customer reviews

    Product Description

    Get extreme speeds for fast transfer, app performance, and 4K UHD with the SanDisk Extreme PLUS microSDXC UHS-I Memory Card. Ideal for your Android smartphone, action cameras or drones, this high performance microSD does 4K UHD video recording, Full HD video, and high-resolution photos. The SanDisk Extreme PLUS microSDXC memory card reads up to 170MB/s and writes up to 90MB/s. It’s also A2-rated for fast app performance.
    See all microSDHC
    See all microSDHC
  6. SanDisk - Ultra PLUS 32GB microSDHC UHS-I Memory Card - Front_Zoom

    Model: SDSQUB3-032G-ANCIA
    SKU: 6346822
    Top comment

    "Good memory expansion for smartphone....Extra memory for my Samsung S5 Galaxy smartphone. No problems, works as intended, good value....makes for good back up memory cards...Keep em in my bag and can easily transfer pics from my camera to my samsung mobile."

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    Product Description

    SanDisk Ultra® PLUS microSDXC™ and microSDHC™ cards are fast for better pictures, app performance and Full HD video. Ideal for Android™ smartphones and tablets, these A1-rated cards load apps faster for a better smartphone experience. Built to perform in harsh conditions, SanDisk Ultra PLUS microSD™ cards are waterproof, temperature proof, shockproof and X-ray proof. This microSD card is also rated Class 10 and Video Speed Class 10 (V10) for Full HD video recording performance and comes with a lifetime warranty.
    See all microSDHC
    Top comment

    "Good memory expansion for smartphone....Extra memory for my Samsung S5 Galaxy smartphone. No problems, works as intended, good value....makes for good back up memory cards...Keep em in my bag and can easily transfer pics from my camera to my samsung mobile."

    See all customer reviews

    Product Description

    SanDisk Ultra® PLUS microSDXC™ and microSDHC™ cards are fast for better pictures, app performance and Full HD video. Ideal for Android™ smartphones and tablets, these A1-rated cards load apps faster for a better smartphone experience. Built to perform in harsh conditions, SanDisk Ultra PLUS microSD™ cards are waterproof, temperature proof, shockproof and X-ray proof. This microSD card is also rated Class 10 and Video Speed Class 10 (V10) for Full HD video recording performance and comes with a lifetime warranty.
    See all microSDHC
    See all microSDHC
  7. Samsung - EVO Plus 512GB microSDXC UHS-I Memory Card with Adapter - Front_Zoom
    Top comment

    "Card...Good card with faster speed to used with mobile for extended storage...Great card at great price...Use for smartphone for video and photos, works perfectly"

    See all customer reviews

    Product Description

    The Micro SD Memory Card EVO Plus + Adapter gives you the freedom to do more. Store huge files, load games, and download the latest apps at lightning-fast speeds. Plus, it’s designed to be incredibly durable, resistant to water, high temperatures, magnets & more. All with the performance and reliability you expect from the world’s #1 flash memory brand.
    See all microSDXC
    Top comment

    "Card...Good card with faster speed to used with mobile for extended storage...Great card at great price...Use for smartphone for video and photos, works perfectly"

    See all customer reviews

    Product Description

    The Micro SD Memory Card EVO Plus + Adapter gives you the freedom to do more. Store huge files, load games, and download the latest apps at lightning-fast speeds. Plus, it’s designed to be incredibly durable, resistant to water, high temperatures, magnets & more. All with the performance and reliability you expect from the world’s #1 flash memory brand.
    See all microSDXC
    See all microSDXC
  8. Samsung - PRO Plus 128GB microSDXC UHS-I Memory Card With Adapter - Front_Zoom
    Top comment

    "I use these cards in my Sony and Motorola devices. Please bring the SD cards back to smartphones (Apple, Samsung, and Google). ...Memory...The product I need to upgrade the memory of my Samsung mobile phone or tablet."

    See all customer reviews

    Product Description

    Your new go-to card + adapter combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    Top comment

    "I use these cards in my Sony and Motorola devices. Please bring the SD cards back to smartphones (Apple, Samsung, and Google). ...Memory...The product I need to upgrade the memory of my Samsung mobile phone or tablet."

    See all customer reviews

    Product Description

    Your new go-to card + adapter combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    See all microSDXC
  9. PNY - 128GB Elite-X Class 10 U3 V30 microSDXC Flash Memory Card - Front_Zoom
    Top comment

    "Great memory card...Great value for price, good choice for using with mobile devices...Good brand and good size for memory extension in mobile and cameras."

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    Product Description

    Expand device storage and capture 4K video with this PNY Elite-X microSDXC card. Featuring a V30 video speed class, this high-performance 128GB memory card smoothly records video in 4K Ultra HD resolution. This A1 app performance-rated PNY Elite-X microSDXC card accommodates large amounts of data and improves the performance of Android devices by making stored apps run smoothly.
    See all microSDXC
    Top comment

    "Great memory card...Great value for price, good choice for using with mobile devices...Good brand and good size for memory extension in mobile and cameras."

    See all customer reviews

    Product Description

    Expand device storage and capture 4K video with this PNY Elite-X microSDXC card. Featuring a V30 video speed class, this high-performance 128GB memory card smoothly records video in 4K Ultra HD resolution. This A1 app performance-rated PNY Elite-X microSDXC card accommodates large amounts of data and improves the performance of Android devices by making stored apps run smoothly.
    See all microSDXC
    See all microSDXC
  10. SanDisk - Extreme PLUS 256GB microSDXC UHS-I Memory Card - Front_Zoom
    Top comment

    "Sandisk memory card is a beast....Plenty of storage in this memory card. It's exactly what I need for my video and picture memories....Memory card...What a memory card. Definitely keeping all my memories in order and the ease of use for devices is amazing"

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    Product Description

    Keep records of your photos and videos with this SanDisk SDSQXBD-256G-AN6MA Extreme PLUS microSD card. The 256GB storage capacity offers ample space for media files, while the read speeds of up to 200MB/sec. support rapid file transfer. This SanDisk Extreme PLUS microSD card pairs with the SanDisk Memory Zone app for seamless file management.
    See all microSDXC
    Top comment

    "Sandisk memory card is a beast....Plenty of storage in this memory card. It's exactly what I need for my video and picture memories....Memory card...What a memory card. Definitely keeping all my memories in order and the ease of use for devices is amazing"

    See all customer reviews

    Product Description

    Keep records of your photos and videos with this SanDisk SDSQXBD-256G-AN6MA Extreme PLUS microSD card. The 256GB storage capacity offers ample space for media files, while the read speeds of up to 200MB/sec. support rapid file transfer. This SanDisk Extreme PLUS microSD card pairs with the SanDisk Memory Zone app for seamless file management.
    See all microSDXC
    See all microSDXC
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