What’s it like using a microSD card on Android in 2023?

Rita El Khoury / Android Authority

It’s not easy to find a high-end Android phone with expandable storage in 2024. As companies scramble to raise their bottom line, the simplicity and lucrativeness of the no-microSD-slot strategy made it a de-facto move: Why let users buy extra storage for next to nothing when they could force you to pay $100 more per meager increase in internal storage?

Many midrange and budget phones, though, still offer a microSD slot. And if you look closely enough, you’ll notice some expensive models like Sony’s Xperia series with expandable storage. But what’s it like using that in 2024? Is Android still as open and as flexible about SD storage now as it was a decade ago? And what can you do once you buy a good microSD card and insert it into your phone? I took a dive into the world of microSD cards on Android, and here’s what I found.

Keep in mind, though, that this article is focused on the stock Android experience with microSD cards. Other phones with their own skins — Samsung, OnePlus, Xiaomi, Moto, Sony, and so on — might have a few different settings here and there. Where needed, we’ll mention some of these differences.

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In the case of stock Android, the Google Files app will launch and show you what’s already on the card. If you’ve stored photos, videos, music files, or any other documents, you can open them with compatible apps. And you can copy files from the phone to the SD card or vice-versa. Nothing groundbreaking here; it’s all the basic stuff of using external storage on any operating system. Things get more confusing once we delve deeper, though.

Pick the portable storage format if you want to be able to freely move your SD card between devices.

You’ll find the option under Settings > Storage > SD card (in the drop-down selector) > ⋮ > Format. The default option is Format for portable storage, which treats the SD card as removable storage, so you can move files to/from it and use it to store offline media. You should pick this option if you want to be able to move your card freely between phones and computers and access all files regardless of the device it’s inserted in. It’s unencrypted, though.

But if you tap Format another way on the bottom left, you’ll be shown the option to Format for internal storage, which completely erases the SD card and starts treating it as a secondary internal storage for your phone. It encrypts it, too, so if it falls into someone else’s hands, they can’t access its data. Some of your existing files, like screenshots and photos, will also be moved to it if you select Move content before the formatting is over.

However, despite the card still showing as a separate entity under Settings > Storage, you won’t be able to browse it independently or move files to/from it. All files and app data appear as if they’re stored internally, and you’ll have to trust Android to pick the right storage when you download or save anything. By default, apps will be installed on the storage with the largest free space, but you can still move them.

Only use internal storage with a very fast card and if you know what you're doing. It's best for people who have lots of apps and games

You should only pick this option if you need to expand your internal storage, have a very fast card, want to encrypt your data, and don’t care about easily transferring it to another device. You can’t access the card on another device without formatting it (and thus deleting it) first. Given the limitations, I recommend testing this for a few days with data you’re not afraid to lose to see if you can live with the limitations before you commit to the setting as a long-term solution.

If you’re confused about these two, here’s a rundown of the differences in table format.

First, you can’t directly install apps or games on the SD card on Android. You have to install them on the internal storage and then move them to the card. You’ll find the option under Settings > Apps > pick an app > Storage > Storage used > Change.

Most large games can be saved and played on SD cards, but you shouldn't do that for resource-intensive games.

App and game developers are the ones who choose whether or not their software can be moved to external storage. For example, Plex, Telegram, Instagram, and Adobe Lightroom can be moved to the SD card. But Spotify, WhatsApp, Slack, Pocket Casts, and others can’t. Thankfully, most games and many large apps already support the feature. However, just because you can move something to the SD card, doesn’t mean you should. Internal storage is much, much faster than the best microSD cards, so you should keep demanding and resource-intensive games on internal storage for the best performance. Think of it like this: Candy Crush? SD card. Genshin Impact? Internal storage.

The final requirement for moving apps and games to external storage depends on your phone. For some skins like Samsung’s One UI, the option to move compatible apps and games to the microSD card pops up without a hitch.

On stock Android, you need to format the card as internal storage to move apps and games to it. Not on Samsung, though.

But for stock Android (Google Pixel, Fairphone, HMD Nokia, and others), your microSD card has to be formatted as internal storage to even show the option (check the previous section). If you’ve set it as portable storage, you won’t see the Change button under Storage used.

Phones with expandable storage let you save photos and videos directly on the SD card. Some third-party camera apps too.

Some third-party camera apps also let you set your default storage, but this all depends on whether the developers implemented it. ProCam X and Camera FV-5, for example, allow it, but Adobe’s Photoshop Camera doesn’t.

Music streaming apps like Spotify, YouTube Music, Deezer, Amazon Music, and Pocket Casts, as well as video streaming apps like Plex and Amazon Prime Video let you pick the SD card as the default storage. So you can insert a 1TB or 2TB card in your phone and significantly expand your storage to keep dozens of high-resolution movies or TV episodes for offline viewing.

Other apps offer a storage picker, too. Google Maps lets you save offline maps to the SD card, Telegram can save chats and media to the card, Amazon Kindle saves books to the SD, and Google Chrome can direct any downloads to the card.

In general, using microSD cards on Android can be as straightforward as plugging a USB stick into your computer, but things get complicated if you need to store apps and games on it or choose between internal and external formatting. Pick the right option for your use, and you shouldn’t have problems.

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