A transfer is a copy, not a handover. The tool that moves your data to a new phone says so in one line of small print: when it finishes, the old device still holds everything it sent. That is the right default and the wrong assumption — because the phone you are about to sell, hand to a child, or leave in a drawer is not empty.
The same listing also shows the transfer is not everything you own, depending on how you connect.
The line that mattersRead it before you wipe nothing
Samsung Smart Switch Mobile, description supplied by Samsung Electronics Co., Ltd.
“Maintained” is doing all the work. Nothing is removed on the way out. That protects you from a failed transfer eating your photos — and it means the old phone leaves your hands exactly as full as it was.
What actually movesTwo lists, and they are not the same list
Same description.
That is the wireless set. The app’s own store picture puts the two options side by side, and the difference is not small.
Wireless, as the app labels it
- Contacts
- Photos
- Videos
- Calendar events
- Reminders
The quick route, over the air.
Cable adds, per the same screen
- Files
- Notes
- Messages
- Alarms
- Voice memos
- Safari bookmarks
- Music
- Home Screen layout
The listing’s own wording: “You can use the USB connector to send more items when connecting.”
Two honest caveats about that second column. The list is what the developer advertises, not a guarantee about your specific model or Android version — the description hedges with the word compatible for settings, and the app only runs against a Galaxy target. And encrypted or app-internal data is its own story: a note inside a third-party app is not a file the mover can see.
It does not sign you out of accounts on the old phone, does not remove chat histories, and does not clear the email account still cached with a signature preview of your doctor. Then it does not wipe the device, because a migration tool that deleted your data on success would be a terrifying tool. Both facts point at the same missing step, which is yours.
The order that makes it safeBoth phones before the old one leaves
- Finish the transfer, then use the new phone for a week.The retained data on the old device is your safety net; do not cut it before you have confirmed the banking app, the photos and the one thread you cannot rebuild.
- Decide deliberately about the cable list.Messages, notes and voice memos are the items people assume travelled and then discover did not.
- Sign out of accounts on the old phone.Logging out is not the same as wiping and it is the step that protects a phone you keep using as a media player in a drawer.
- Factory reset before selling, giving away or trading in.The transfer leaving data behind is the whole reason this step is not optional.
- Then check the two things nobody checks:that the old phone’s cloud backup was not your only copy of anything, and that deleted items in the new phone’s “recently deleted” are gone by the time you let anyone else hold it.
| What people assume | What the listing says instead |
|---|---|
| “I moved it, so the old one is clear” | Data of the sender device is maintained after transfer |
| “Everything came across” | Two different lists depending on wireless or cable |
| “I signed out when I wiped it” | Not a claim of this tool at all — the reset is a separate step you take yourself |
Which phone do you look at?The instruction that answers it
Samsung’s description is short, and two of its lines are instructions rather than marketing. The receiving side comes first: “Search and run Smart Switch in the settings of Galaxy device.” Then the sending side: “Search and download “Samsung Smart Switch” from App Store and connect and send it according to the guide.”
Read those in order and they explain the most common dead end. There is no app to install on the new phone, because the new phone already carries it — it is a function inside Settings on the Galaxy side. The app you download is for the phone you are leaving, and its whole job is to be the sender. If somebody says they “cannot find Smart Switch”, the useful question is not which app store they used, but which phone they were holding when they looked.
The opening line of the listing sets the direction as well: “How to easily transmit content from iPhone to Galaxy.” That is the trip this app describes. It is worth noticing how specific the description is about that — the whole text is about moving out of iOS and into a Galaxy, and nothing in it promises the reverse journey or a phone-to-phone move between two Android makers.
The week beforeWhat to do while both phones are still yours
Everything below is our own sequence, not Samsung’s instructions, and it exists because of one quoted fact: the transfer leaves the old phone full. A migration that copies rather than hands over gives you a safety net, and a safety net is only useful if you take the week to check the things that did not arrive.
- Do a normal cloud backup of the old phone first.Not because the transfer needs it, but because it means a failed move is a bad afternoon rather than a lost year. The two mechanisms are independent, and you want both.
- Decide about the cable list before you start.Messages, notes and voice memos are the items on the wired side that people assume travelled wirelessly. If they matter, connect properly instead of reaching for whichever option is faster.
- Move chat histories as their own job.Messaging apps keep their own archives and their own rules; a phone migration tool is not the layer where a chat backup lives. We covered what WhatsApp’s own wording says about moving chats separately.
- Do the sign-in codes before the old phone leaves your hand.Two-factor codes are the classic silent casualty of a new phone, and the loss is discovered a week later at a login screen. The steps are in our guide to changing phones.
- Use the new phone for a week without wiping the old one.This is the whole advantage of a copy-based tool. Bank app, photos, the one chat thread, the wallet card, the health data, the watch pairing — check all of them while a fallback still exists.
- Only then sign out and factory reset the old phone.Selling, giving away or trading in a device that Smart Switch just emptied nothing from is how people discover, too late, what “maintained” meant.
Neither the wireless list nor the wired list says anything about data kept inside a third-party app, about health and fitness history, about a messaging app’s own archive, or about passwords stored in a browser. Absence in a description is not a promise either way — it is simply the signal to handle each of those on its own terms, inside the app that owns it, rather than assuming a phone-level copier will reach them. The apps that hold your most irreplaceable data are almost always the ones with their own export or backup step.
Who is doing whatThree machines, three responsibilities
| Part | Its job, according to the listing | Where it can quietly fail |
|---|---|---|
| The old phone | Runs the sender app, and keeps everything afterwards | Storage space, a locked-down work profile, or a screen that sleeps mid-copy |
| The new phone | Hosts Smart Switch in its Settings and receives | Looking for the app in the wrong place, or accepting only the wireless option |
| Whatever joins them | A cable or a shared network, per the app’s two options | A charge-only cable, a public network, or a connection dropped at the largest file |
One asymmetry deserves saying out loud, because it changes expectations rather than steps: the sending phone is the one that keeps working normally throughout. Nothing in the description asks you to leave it idle for hours, and nothing warns you that the copy can be interrupted by ordinary use. So the practical advice is unglamorous — start the transfer at the end of the day, on a table, with both phones plugged in, and do not use either of them until it says it is finished. The tool is tolerant of failure; your patience is the resource worth protecting.
And if the new phone is not a Galaxy, this is the wrong listing to work from at all. The description names its destination twice, and there is no clever setting that changes that answer.
Samsung’s support site was not reachable from the network used to write this, so nothing here names a menu, an exact button, or a device compatibility list. The quoted lines and the two transfer lists come from the app description and the developer’s own store image, which describe the wireless path and note the USB connector carries more items. Whether any specific thing travels on your pairing is a question for your two phones, and the safe answer is to check before the old device leaves your hands.
- All quoted sentences — the app description Samsung Electronics supplies for its own store listing, retrieved from the store’s public catalogue interface and compared word for word with this page.
- One store image — supplied by the developer; the caption transcribes what each of the two connection options says it transfers.
- Our own reading — the copy-versus-handover framing, the five-step order, and the beliefs table. Not vendor instructions, and not results of a migration we performed.
Smart Switch’s page here is this one, on the tools and devices hub. Related: the codes that do not come with you, and what “offline” means across three apps.
Written by the Dlzer editorial desk. Not affiliated with, endorsed by or sponsored by Samsung. Samsung, Galaxy and Smart Switch are Samsung’s marks, used to identify the product; quoted lines are Samsung’s own description of what it does.