The Samsung Galaxy S25 Ultra has no SD card slot

The Samsung Galaxy S25 Ultra does not include a microSD card slot for storage expansion. Samsung removed expandable storage from the S25 Ultra lineup entirely, meaning you cannot add external memory cards to increase storage capacity beyond what comes built into the phone.

This is a significant change from some earlier Samsung flagships, though Samsung has been moving away from SD card slots across its premium lineup for several years. If you need extra storage, you will have to work with the internal storage your phone came with, or use cloud services and external backup methods.

Key Takeaways

  • The S25 Ultra comes with fixed internal storage — 256GB, 512GB, or 1TB depending on which model you buy — and you cannot expand it with an SD card.
  • Samsung's decision to remove the SD card slot is part of a broader industry trend toward thinner phones and reliance on cloud storage.
  • You can back up photos, videos, and files to Samsung Cloud, Google Drive, OneDrive, or other cloud services instead of storing them locally.
  • If you regularly work with large files or shoot high-resolution video, choosing the 512GB or 1TB model at purchase is more practical than expecting to add storage later.

What storage options come with the S25 Ultra

The S25 Ultra is sold in three fixed storage configurations: 256GB, 512GB, and 1TB. The storage you choose at purchase is the storage you have for the life of the phone. There is no way to upgrade it or add to it after you buy the device.

For most users, 256GB is enough for apps, photos, and everyday files. If you shoot a lot of video, store music libraries locally, or work with large files, the 512GB or 1TB options give you more breathing room. The difference in price between storage tiers is significant, so it is worth thinking through your actual needs before you order.

Why Samsung removed the SD card slot

Samsung cited two main reasons: making the phone thinner and improving internal performance. An SD card slot requires physical space inside the phone, and removing it allowed Samsung to reduce the overall thickness of the S25 Ultra. The company also argued that modern phones can rely on cloud storage and faster internal memory instead of expandable cards.

This mirrors decisions made by Apple (which has never included SD card slots in iPhones) and other Android manufacturers. The trend reflects a shift in how people store data — fewer people keep large files locally, and more rely on cloud services like Google Photos, OneDrive, and Samsung Cloud to back up and access their content.

Cloud storage as an alternative to an SD card

If you need more storage than your phone's internal memory provides, cloud services are the practical replacement. Samsung Cloud comes built into the S25 Ultra and offers 5GB of free storage for photos, videos, contacts, and settings. Google Drive, OneDrive, Google Photos, and Amazon Photos all work on the S25 Ultra and offer their own free tiers and paid plans.

Cloud storage works differently than an SD card: your files live on a company's servers rather than on your phone, and you access them through an app or web browser. This means you need an internet connection to view or read files, but it also means your data is backed up automatically and accessible from any device. For photos and videos, Google Photos offers unlimited storage if you compress them slightly, which many people find more convenient than managing local files.

Backing up files without expandable storage

The S25 Ultra includes Samsung's Smart Switch tool, which backs up your entire phone — apps, settings, messages, and files — to Samsung Cloud or to a computer. You can also back up to Google Drive, which stores your photos, contacts, and some app data. If you use a computer regularly, you can connect the S25 Ultra via USB and copy files directly to your hard drive or external drive.

For video and photo files specifically, setting up automatic backup to Google Photos or Samsung Cloud means your media is saved even if your phone is lost or damaged. This approach actually provides more protection than an SD card, since a card can fail or be lost along with the phone.

How to choose the right storage size at purchase

Think about what you actually store on your phone. If you primarily use apps, text, email, and stream music and video from services like Spotify and Netflix, 256GB is usually sufficient. If you take a lot of photos or video, especially in 4K or 8K, or if you read movies and music for offline use, 512GB is a safer choice.

The 1TB model is useful if you work with large files — video editing, design files, or large document libraries — or if you want to keep several years of photos and videos on the device itself. Remember that the phone's operating system and pre-installed apps take up space too, so the actual usable storage is somewhat less than the advertised amount.

Frequently Asked Questions

Can I use a USB-C external drive with the S25 Ultra?

Yes. The S25 Ultra has a USB-C port and can connect to external drives, flash drives, and card readers via USB-C. You can copy files to an external drive or read files from one, though this is slower than having storage built into the phone and requires carrying an extra device.

Will Samsung add an SD card slot back in future models?

There is no indication Samsung plans to bring back expandable storage. The company has been moving away from SD cards for years, and the industry trend is toward fixed storage and cloud backup. It is unlikely to change.

Is 256GB really enough, or should I buy more?

It depends on your habits. If you stream everything and back up photos automatically, 256GB works fine. If you read videos, keep large music libraries, or take lots of 4K video, you will run out of space. Buying more storage upfront is cheaper than dealing with a full phone later.

What happens if I fill up my S25 Ultra's storage?

Your phone will slow down and you will not be able to install new apps or take new photos. You will have to delete files or move them to cloud storage or an external drive to free up space. This is why planning your storage at purchase matters.