SD cards for various devices comparison 2026

For 4K video recording, you will need an SD card with a high video speed class, such as V30. The Tf Card 128gb Micro SD Card Class 10 Uhs-i C10 U3 V30 (index 21) at $14.99 or the SanDisk Extreme 64GB microSDXC UHS-I Card SDSQXAF-064G-GN6MA (index 50) at $34.99 are good options, as they ensure consistent write speeds required for high-resolution footage.

For the Nintendo Switch 2, the new MicroSD Express cards offer the best performance due to their PCIe Gen 3x1 bus type. The Nintendo Samsung microSD Express Card 256GB for Switch 2 (index 1) priced at $59.00 and the New Onn Micro SD Express Card 512GB (index 9) at $84.77 are excellent choices, providing significantly faster loading times and game performance compared to standard microSD cards.

SDHC (Secure Digital High Capacity) cards range in capacity from 4GB to 32GB, while SDXC (Secure Digital eXtended Capacity) cards offer capacities from 64GB up to 2TB. SDXC cards are generally newer and feature higher potential speeds due to their file system. For example, the SanDisk Ultra 32GB SDHC Memory Card (index 6) is an SDHC, while the SanDisk Ultra SDXC UHS-I Card (index 14) is an SDXC, offering higher potential capacity and performance.

UHS-I cards are common and offer speeds up to 104 MB/s, suitable for most modern cameras and devices. UHS-II cards provide significantly faster speeds, up to 312 MB/s, and are ideal for professional photographers and videographers using compatible cameras that can utilize the increased bus speed. The Sony SF-M UHS-II SDXC Memory Card (index 35) is an example of a high-performance UHS-II card, while many SanDisk Ultra cards are UHS-I.

A1 and A2 speed classes denote a card's ability to perform well with random read/write operations, which is crucial for running apps directly from the card on smartphones or tablets. A1 ensures a minimum of 1,500 random read IOPS and 500 random write IOPS. If you plan to store and run applications on your microSD card, an A1 or A2 rating, like the Team Elite A1 Flash Memory Card (index 15), would be beneficial.

The ideal capacity depends on your usage. For casual photo storage or older devices, a 32GB card like the SanDisk Ultra 32GB SDHC Memory Card (index 6) may suffice. For 4K video, high-resolution photos, or extensive app storage, consider 128GB, 256GB, or even 512GB to 1TB options such as the SanDisk Extreme PLUS 128GB SD UHS-I Memory Card (index 20) or the SanDisk Extreme PLUS SDXC UHS-I card 1TB (index 29).