Micro SDHC vs Micro SDXC: Difference and Comparison

Micro SDHC and Micro SDXC are both types of SD cards with different data transfer speeds and storage capacities.

Micro SDXC cards are considered to be better as they have 13 times more speed than micro SDHC cards, and the performance of the cards depends a lot on their speed.

Key Takeaways

  1. Micro SDHC cards have a 4GB to 32GB storage capacity, while Micro SDXC cards offer 64GB to 2TB.
  2. Micro SDXC cards support exFAT file systems, whereas Micro SDHC cards use FAT32 file systems.
  3. Micro SDXC cards offer faster data transfer rates compared to Micro SDHC cards.

Micro SDHC vs Micro SDXC 

Micro SDHC and Micro SDXC are two types of micro SD cards that can be used to increase the storage capacity of various devices. SDHC cards have a maximum capacity of 32GB. SDXC cards have a maximum capacity of 2TB.

Micro SDHC vs Micro SDXC

MicroSDHC is considered second-generation cell phone memory. In 2006, the format was announced, and as a result, a storage device that could meet the endless storage needs of mobile phones appeared.


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These cards work best when trying to record HD videos. These cards are fast enough to handle large chunks of data but definitely not faster than Micro SDXC cards.

A micro SDXC card is great for those needing more storage space, especially if the amount of data grows. This card is essential for modern smartphones, tablets, drones, and other devices that use micro SD cards.

These cards can hold massive data storage capacities, which is considerably more than Micro SDHC cards.

Comparison Table

Parameters of ComparisonMicro SDHCMicro SDXC
Full formThe full form of SDHC is Secure Digital High Capacity. The full form of SDXC is Secure Digital Extended Capacity.
Storage Capacity Its range is from 4GB to 32 GB. Its range is from 64GB to 2 TB.
Default File FormatThe default file format is FAT32. The default file format is exFAT.
Data transfer speed SDHC can support 10 MBPS of data transfer speed.SDXC can support up to 300 MBPS of data transfer speed.
Quality of performance The performance is much lower than that of Micro SDXC cards as it is much slower. Show better performance compared to micro SDHC cards as they are 13 times faster.
Compatibility Devices compatible with Micro SDXC cards are well compatible with Micro SDHC cards. Mostly not compatible with older devices. Usually compatible with devices built after 2010.

What is Micro SDHC?

The maximum capacity offered by a standard SD card is 2 GB, which is small for data storage and cannot meet big data storage requirements.

Because HD video and images, as well as increment of file sizes, required more storage space, in 2006, a consortium of manufacturers introduced a new SD card standard called Secure Digital High Capacity (SDHC).

MicroSDHC memory card can store data from 4GB to 32GB, similar to that of the standard SD card, but with a much-expanded storage capacity. However, micro SDHC cards work well only with SDHC devices.

Micro SDHC cards are the most reasonable and systematic solution for storage in devices like mobile and cameras which can withstand the toughest climatic and environmental conditions.

With the rising demand for pictures and video-centric mobile apps and social media platforms like Instagram, Facebook, WhatsApp, and Snapchat, the demand for Micro SDHC cards has increased, becoming a standard for quality digital storage.

With online and offline data growing exponentially, the need for storage has become a necessity. It is no more to be called a preference.

These Micro SDHC cards are available in 4 variants, that is with 4 storage capacity sizes, 4GB, 12GB,16GB, and 32 GB.

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What is Micro SDXC?

Micro SDXC cards, also known as “Secure Digital Extended Capacity” Cards, are the most feasible and preferred solution for information and data storage in today’s world which is based on SDA 3.0 specifications.

They are a totally new breed of truly high-performance cards with enormous storage capacities, which start from 64GB and range up to 2TB.

The escalating demand for high-quality HD 4K motion pictures, still photos, and the online virtual content material has charged the demand for prolonged and quality storage capacities.

That is wherein the SDXC Cards come into the picture to play an important role. They are specially designed to maximize the overall performance of mobile phones and cameras even in the most challenging environmental conditions.

 The intense speeds of the Micro  SDXC cards make shifting snapshots and motion pictures among gadgets a breeze, plus a storage capability of as much as 2TB.

However, they are very distinctive from the commonly preferred SD storage cards, using Microsoft’s proprietary report machine (exFAT or Extended File Allocation Table) as the inbuilt default file format.

They are not backwards like-minded with gadgets that handiest take SD storage cards or gadgets that help handiest SDHC playing cards. However, the maximum gadgets which were built post-2010 are highly compatible with SDXC storage cards.

They help to accelerate writing up to 90 MBPS and reading up to almost 100-300 MBPS, which keep an amazing deal of a while shifting high-definition photos and 4K UHD motion pictures.


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Main Differences Between Micro SDHC and Micro SDXC

  1. Micro SDHC stands for Secure Digital High Capacity, while Micro SDXC stands for Secure Digital Extended Capacity.
  2. Micro SDHC has a storage capacity of 4GB to 32GB storage capacity, while Micro SDXC offers a very high range storage capacity from 64GB to 2TB.
  3. The data transfer speed of Micro SDHC is 10 MBPS, while that of Micro SDXC is up to 300MBPS.
  4. Micro SDHC uses FAT32 as its default file format, while SDXC uses exFAT as its default file format.
  5. Micro SDHC cards are compatible with devices that are compatible with Micro SDXC cards. Although, Micro SDXC cards do not work well with old models.
Difference Between Micro SDHC and Micro SDXC
  1. https://www.proquest.com/openview/7fa6a3e5feae4f9abac83987760d3890/1?pq-origsite=gscholar&cbl=2048965
  2. https://ieeexplore.ieee.org/abstract/document/8268778

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