Smart Switch Copy or Move? Data Transfer Explained

Updated 6 November 2026 · Standard formula, shown below

Smart Switch (Samsung’s data transfer app) copies your data from the old device to the new one; it does not move it. The original files remain on the source device unless you manually delete them after the transfer. This article explains how the copy process works, what data is included, and how to manage your files after switching.

How Smart Switch Actually Works

Smart Switch uses a direct Wi-Fi connection, a USB cable, or a computer to transfer data. In all cases, the app reads the data from the source device and writes a copy to the target device. The source files are never altered or removed during the process. This is a fundamental design choice: it protects your data in case the transfer fails or the new device has issues.

After the transfer completes, you will see a summary of what was copied (contacts, photos, messages, apps, etc.). The app does not offer a “move� option because copying is safer. If you want to free up space on the old phone, you must delete the data manually after verifying the new device has everything.

What Data Gets Copied

Smart Switch can copy a wide range of data, depending on the source device and its operating system:

Contacts, call logs, and text messages (SMS/MMS)
Photos, videos, and music (stored in internal memory or SD card)
Documents and files (PDFs, office files, downloads)
Calendar events and alarms
Settings (Wi-Fi passwords, display settings, home screen layout)
Apps (free apps are reinstalled; app data may transfer depending on the app and OS)

Note that some data, like app logins and certain app data, may not transfer due to OS restrictions. For example, on iOS, app data is often not accessible, so you will need to sign in again to apps.

How to Choose Between Copy and Move

Since Smart Switch only copies, the decision is not about copy vs. move within the app. Instead, you decide what to do with the old device after the transfer:

Keep the old phone as a backup: Leave the data intact. This is useful if you want a fallback or plan to sell the phone later (after wiping it).
Free up space: After confirming the new phone works, manually delete photos, videos, and other large files from the old device.
Factory reset the old phone: If you are selling or trading it, perform a factory reset to erase all data. This is the only way to truly “move� data off the old device.

There is no built-in “move� option because copying is safer. Always verify the new device has the data before erasing the old one.

Common Problems and Misconceptions

One common misconception is that Smart Switch “moves� data, so users assume the old phone is empty after the transfer. That is not true. Another issue is that some users think the transfer is two-way, but Smart Switch only copies from the old device to the new one (it does not sync back).

If the transfer fails or seems incomplete, check:

Battery levels: Keep both devices charged above 50% or plugged in.
Connection stability: For wireless transfers, stay close to both devices and avoid Wi-Fi interference.
Storage space: The new device must have enough free space for the data.
App permissions: On some Android versions, Smart Switch needs permission to access storage and contacts.

If you see a message that some data couldn’t be transferred, it is usually due to incompatible formats or OS restrictions. You can transfer that data manually via cloud services or a computer.

Comparison with Other Transfer Methods

Smart Switch is not the only way to move data between phones. Here is how it compares:

Cloud backup (Google Drive, iCloud): Uploads data to the cloud and downloads it on the new phone. This uses internet data and can be slower, but it works across different brands.
Computer transfer: Connect both phones to a PC and manually copy files. This gives you full control but is time-consuming.
Third-party apps: Some apps offer similar functionality, but they may have limitations or require in-app purchases.

Smart Switch is generally the fastest for Samsung-to-Samsung transfers because it uses a direct connection and can transfer app data that other methods cannot.

Costs and Requirements

Smart Switch is free to download from the Galaxy Store or Google Play. It requires:

A Samsung Galaxy device as the target (the new phone).
The source device can be Android (any brand) or iPhone.
For wireless transfer, both devices need Wi-Fi (or a direct Wi-Fi connection).
For USB transfer, you need a USB cable and an OTG adapter (if the source is not Samsung).
For computer transfer, you need a PC with Smart Switch installed and a USB cable.

There are no hidden costs, but you may need to buy an OTG adapter if you don’t have one. The transfer itself does not use mobile data.

Safety and Data Security

Copying data is safer than moving it because you retain a backup until you decide to erase the old device. However, if you sell or trade your old phone, you must wipe it to protect your personal information. A factory reset is the most reliable way to erase data, but it does not guarantee complete deletion on all devices. For extra security, you can encrypt the device before resetting or use a data destruction tool.

During the transfer, both devices are vulnerable to interception if you use an unsecured Wi-Fi network. Smart Switch uses encryption for wireless transfers, but it is still wise to perform the transfer in a private setting. Never share your personal data over public Wi-Fi.

Frequently Asked Questions

Does Smart Switch delete data from my old phone?
No, Smart Switch only copies data. Your old phone will retain all files until you manually delete them or perform a factory reset.

Can I use Smart Switch to move data from iPhone to Samsung?
Yes, Smart Switch supports iPhone as a source. You will need a USB cable and an OTG adapter for the best experience, or you can use a wireless transfer if you have a Lightning-to-USB cable.

Why did some of my apps not transfer?
Apps that are not available on the Galaxy Store or Google Play may not transfer. Also, app data (like login info) often does not transfer due to OS restrictions. You will need to reinstall and sign in to those apps.

How long does a Smart Switch transfer take?
The time depends on the amount of data and the connection type. A USB cable is faster than wireless. For 20 GB, a USB transfer might take 10-20 minutes, while wireless could take 30-60 minutes.

Can I cancel a Smart Switch transfer?
Yes, you can cancel the transfer at any time, but the new device may have partial data. It is best to let it finish to avoid incomplete transfers.

Does Smart Switch work between two Samsung phones?
Yes, it works best between two Samsung devices, especially for transferring app data and settings.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.