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

The best memory cards for smartphones are the ones that offer the highest capacities at the best price. If you're looking to store lots of photos or videos on your phone, you'll want a large-capacity card that's fast and reliable. Browse the top-ranked list of smartphone memory cards below along with associated reviews and opinions.

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  1. Samsung - EVO Plus 64GB microSDXC UHS-I Memory Card with Adapter - Front_Zoom
    Top comment

    "The best best SD micro card for smartphone greatest features in the world Greatest features and value Samsung...It works perfectly fine in my nintendo switch - arrived quite fast and I verified it as a genuine card. Read/write speeds is fine for a device like the switch or for everyday smartphone use."

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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

    "The best best SD micro card for smartphone greatest features in the world Greatest features and value Samsung...It works perfectly fine in my nintendo switch - arrived quite fast and I verified it as a genuine card. Read/write speeds is fine for a device like the switch or for everyday smartphone use."

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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
    See all microSDXC
  2. Insignia™ - USB 3.0 SD and microSD Memory Card Reader - Black - Front_Zoom
    Top comment

    "Memory Card Reader...Handy product for using microSD memory cards. Works as expected....Compact video card to usb....Compact adapter to connect usual video memory cards to usb input. It works."

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    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRSA1, USB 3.0 to SD and microSD Memory Card Reader. Simply plug in the card reader to your computer, tablet or other device with USB-A female connector to quickly transfer data. It’s backward compatible with USB 2.0 device and wide variety of SD and microSD cards to keep your creativity flowing without having to pause and delete unwanted files. Its compact design and protective cap mean you can easily fit it in a pocket or bag and not have to worry about damaging your connector. Never let a full memory card stop you again.
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    Top comment

    "Memory Card Reader...Handy product for using microSD memory cards. Works as expected....Compact video card to usb....Compact adapter to connect usual video memory cards to usb input. It works."

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    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRSA1, USB 3.0 to SD and microSD Memory Card Reader. Simply plug in the card reader to your computer, tablet or other device with USB-A female connector to quickly transfer data. It’s backward compatible with USB 2.0 device and wide variety of SD and microSD cards to keep your creativity flowing without having to pause and delete unwanted files. Its compact design and protective cap mean you can easily fit it in a pocket or bag and not have to worry about damaging your connector. Never let a full memory card stop you again.
    See all Memory Card Readers & Adapters
    See all Memory Card Readers & Adapters
  3. Insignia™ - USB-C/USB 3.0 to SD and microSD Memory Card Reader - Black - Front_Zoom
    Top comment

    "Love it! I can take the memory card out of my DSLR camera and transfer all the pics to my smartphone or computer....Insignia‘s Memory Card Reader is a useful device for people that use SD and microSD cards, and one to view contact stored on those cards on your computer. "

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    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRSAC1, USB-C/USB 3.0 to SD and microSD Memory Card Reader. Simply plug in the card reader to your computer, tablet or other device to quickly transfer data. It’s backward compatible with USB 2.0 device and wide variety of SD and microSD cards to keep your creativity flowing without having to pause and delete unwanted files. Its compact design and protective cap mean you can easily fit it in a pocket or bag and not have to worry about damaging your connector. Never let a full memory card stop you again.
    See all Memory Card Readers & Adapters
    Top comment

    "Love it! I can take the memory card out of my DSLR camera and transfer all the pics to my smartphone or computer....Insignia‘s Memory Card Reader is a useful device for people that use SD and microSD cards, and one to view contact stored on those cards on your computer. "

    See all customer reviews

    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRSAC1, USB-C/USB 3.0 to SD and microSD Memory Card Reader. Simply plug in the card reader to your computer, tablet or other device to quickly transfer data. It’s backward compatible with USB 2.0 device and wide variety of SD and microSD cards to keep your creativity flowing without having to pause and delete unwanted files. Its compact design and protective cap mean you can easily fit it in a pocket or bag and not have to worry about damaging your connector. Never let a full memory card stop you again.
    See all Memory Card Readers & Adapters
    See all Memory Card Readers & Adapters
  4. Samsung - Pro Plus 128 GB microSDXC Memory Card - Front_Zoom

    Model: MB-MD128SB/AM
    SKU: 6540993
    Top comment

    "Fastest microsd card...I reach 175mb/s transferring directly to my smartphone using samsung usb adapter....Memory Card...What can I say, it’s a memory card and it’s working for my vehicle camera."

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    Product Description

    Your new go-to card + reader 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

    "Fastest microsd card...I reach 175mb/s transferring directly to my smartphone using samsung usb adapter....Memory Card...What can I say, it’s a memory card and it’s working for my vehicle camera."

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    Product Description

    Your new go-to card + reader 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
  5. Samsung - Pro Ultimate and Reader 256GB microSDXC Memory Card - Front_Zoom
    Top comment

    "Its durability is impressive, weathering water, extreme temperatures, and magnetic environments. This memory card is not just storage; it's a robust safeguard for memories and moments on the go. ...Reliable Memory card...This memory card is a dependable choice, always ready for your adventures. "

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    Product Description

    Step into a new stage of storage with the Samsung PRO Ultimate MicroSD. It supports every ambition from creative pursuits, to professional projects and personal memories with high speed and the compatibility to keep you on top of your game.
    See all Memory Cards
    Top comment

    "Its durability is impressive, weathering water, extreme temperatures, and magnetic environments. This memory card is not just storage; it's a robust safeguard for memories and moments on the go. ...Reliable Memory card...This memory card is a dependable choice, always ready for your adventures. "

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    Product Description

    Step into a new stage of storage with the Samsung PRO Ultimate MicroSD. It supports every ambition from creative pursuits, to professional projects and personal memories with high speed and the compatibility to keep you on top of your game.
    See all Memory Cards
    See all Memory Cards
  6. SanDisk - Ultra PLUS 1TB microSDXC UHS-I Memory Card - Front_Zoom

    Model: SDSQUBL-1T00-AN6MA
    SKU: 6516381
    Top comment

    "Fine Memory Card, that I have never experienced any problems from....My 1TB San Disk Ultra Plus Memory Card...My 1TB San Disk Ultra Plus Memory Card work like a champ in my 5 inch Amazon Fire Tablet!"

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    Product Description

    Accommodate high-resolution images and video files with this SanDisk SDSQUBL-1T00-AN6MA Ultra PLUS microSDXC card. The 160MB/sec. transfer speeds let you save time when moving photos and videos, while the 1TB storage capacity provides plenty of room for large multimedia files. This SanDisk Ultra PLUS microSDXC card with is compatible Android smartphones and tablets, letting you offload data faster, and the shockproof design ensures durability.
    See all microSDXC
    Top comment

    "Fine Memory Card, that I have never experienced any problems from....My 1TB San Disk Ultra Plus Memory Card...My 1TB San Disk Ultra Plus Memory Card work like a champ in my 5 inch Amazon Fire Tablet!"

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    Product Description

    Accommodate high-resolution images and video files with this SanDisk SDSQUBL-1T00-AN6MA Ultra PLUS microSDXC card. The 160MB/sec. transfer speeds let you save time when moving photos and videos, while the 1TB storage capacity provides plenty of room for large multimedia files. This SanDisk Ultra PLUS microSDXC card with is compatible Android smartphones and tablets, letting you offload data faster, and the shockproof design ensures durability.
    See all microSDXC
    See all microSDXC
  7. SanDisk - Ultra PLUS 64GB microSDXC UHS-I Memory Card - Front_Zoom

    Model: SDSQUBC-064G-AN6IA
    SKU: 6515512
    Top comment

    "I've been using these in my smartphone. Good value for a good quality product....Awesome Memory Card!!!...Awesome Memory Card! Good quality and reasonable price."

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    Product Description

    Keep digital documents and media safely stored with this SanDisk SDSQUBC-064G-AN6IA Ultra PLUS microSDXC memory card. The included adapter enables connectivity with most devices, while the 64GB storage capacity offers ample space for your videos and music files. Featuring transfer speeds of up to 150MB/sec. and Video Speed Class 10, this SanDisk Ultra PLUS microSDXC memory card offers rapid performance.
    See all microSDXC
    Top comment

    "I've been using these in my smartphone. Good value for a good quality product....Awesome Memory Card!!!...Awesome Memory Card! Good quality and reasonable price."

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    Product Description

    Keep digital documents and media safely stored with this SanDisk SDSQUBC-064G-AN6IA Ultra PLUS microSDXC memory card. The included adapter enables connectivity with most devices, while the 64GB storage capacity offers ample space for your videos and music files. Featuring transfer speeds of up to 150MB/sec. and Video Speed Class 10, this SanDisk Ultra PLUS microSDXC memory card offers rapid performance.
    See all microSDXC
    See all microSDXC
  8. Samsung - Pro Plus  256GB microSDXC Memory Card - Front_Zoom

    Model: MB-MD256SB/AM
    SKU: 6540997
    Top comment

    "Samsung Pro Plus 256GB microSDXC Memory Card...The Samsung Pro Plus 256GB microSDXC memory card delivers exceptional performance and reliability. ...Samsung memory card purchase...The memory card is work great and card read fit the bill."

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    Product Description

    Your new go-to card + reader 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

    "Samsung Pro Plus 256GB microSDXC Memory Card...The Samsung Pro Plus 256GB microSDXC memory card delivers exceptional performance and reliability. ...Samsung memory card purchase...The memory card is work great and card read fit the bill."

    See all customer reviews

    Product Description

    Your new go-to card + reader 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. SanDisk - Extreme 256GB microSDXC UHS-I Memory Card for Gaming - Front_Zoom
    Top comment

    "Yes To SD Card On Discount...I love that my Sony devices all uses memory sd cards. For my Xperia smartphone I pop in a sd card full of movies, pictures, movies, or documents. ...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.
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    Top comment

    "Yes To SD Card On Discount...I love that my Sony devices all uses memory sd cards. For my Xperia smartphone I pop in a sd card full of movies, pictures, movies, or documents. ...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
  10. SanDisk - Extreme PLUS 32GB microSDHC UHS-I Memory Card - Front_Zoom

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

    "Decent card...Nice card for the price. Speedy for use in smartphones...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

    "Decent card...Nice card for the price. Speedy for use in smartphones...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
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