Changing a smartphone is always an exciting process, which often raises concerns about the loss of personal information. The most valuable piece of data in a phone book is the numbers of friends, colleagues and relatives that we have accumulated over the years. Fortunately, the ecosystem Android offers many flexible tools for data migration, making this process as simple and secure as possible.
In this article we will analyze all the current methods: from cloud synchronization to direct cable connections. You will learn how to choose the optimal method depending on the number of records and the model of your device, as well as how to avoid common mistakes that lead to duplication of numbers.
Regardless of whether you are switching from Samsung to Xiaomi or simply changing the device within the same brand, there are universal algorithms of action. Let's take a closer look at each of them, paying attention to the nuances that even experienced users often forget.
Synchronization via Google Account: the most reliable method
Using Google cloud storage is an industry standard and the most preferred option for most users. This method ensures that your data not only moves, but is also protected from physical loss of the device. The principle of operation is to upload the phone book to servers Google and subsequent automatic downloading to the new gadget.
First, you need to make sure that contact synchronization is enabled on your old phone. Go to the settings, find the section Accounts and synchronization or simply Users and accounts. Select your Gmail profile and make sure the switch next to Contacts is active. If it is turned off, turn it on and wait for the data exchange process to complete.
After that, take a new device and log into the same one Google Account. The system will automatically offer to restore data from a backup copy. If you've already set up your phone, just go to your contacts settings and click the sync button. All entries will appear in the phone book within a few minutes, depending on the speed of the Internet connection.
⚠️ Attention: Make sure that on your old phone the contacts are saved in the memory of your Google account, and not on the SIM card or in the internal memory of the device. Otherwise, synchronization will not work.
This method is ideal in that it does not require both devices to be nearby at the time of transfer. You can sell your old phone and set up a new one in a week - the data will still be available to you from anywhere in the world. In addition, Google allows you to edit and restore deleted contacts through the web interface within 30 days.
Using Quick Share and Bluetooth
If you don't have access to the Internet or prefer to transfer data locally, you can use the built-in file transfer features. In modern smartphones based on Android this technology has evolved from conventional Bluetooth to a fast exchange protocol known as Quick Share (formerly Nearby Share).
The process begins by opening the Contacts application on your old device. Click on the menu (usually three dots in the corner) and select the option "Manage contacts" or "Import/export". You will need to select item Export to file.vcf. The system will create a single file containing all your recordings and save it in the phone's memory.
Next, activate Bluetooth and the fast transfer function on both devices. Find the created file in the file manager or directly select the "Send contacts" option in the phone book menu. The receiving device will ask you to confirm receipt. Once accepted, the file will be automatically unpacked and all numbers will be added to your address book.
- 📲 Make sure that both phone screens are unlocked and next to each other.
- 🔋 Check the battery level, as active data transfer can quickly drain energy.
- ✅ Confirm permission to access contacts on the receiving device when first launched.
This method is especially useful when transferring data between devices from different manufacturers, where cloud ecosystems may differ. However, with a very large number of entries (more than 2000), the process may take several minutes, since a large data file is generated.
Before sending the file via Bluetooth, rename it to something clear, for example, "Contacts_Backup.vcf" so as not to lose it in the downloads folder of the new phone.
Transfer via SIM card: classic method
Despite the development of digital technologies, many users, out of habit or necessity, continue to use a SIM card as a physical storage medium. This method is universal and does not depend on the version of the operating system or the availability of the Internet, but it has significant limitations on the amount of data stored.
To implement this scenario, you first need to export contacts from the phone's memory to the SIM chip. In the contacts application, select the menu and find Import/export contacts. Select an option Export to SIM card. The system will warn you about the possible loss of some information (for example, photos or additional email addresses), since the SIM card format is very limited.
After the export is completed, turn off the old phone, remove the SIM card and insert it into the new device. Turn on your device, go to the contacts application and select Import from a SIM card. Specify the storage location - it is recommended to choose a Google account or the internal memory of the phone so as not to depend on the physical card in the future.
⚠️ Attention: the SIM card can accommodate a limited number of characters in the contact name (usually up to 15-20 characters). Long names may be truncated, and special characters may not be displayed correctly.
| Parameter | Phone memory | Google Account | SIM card |
|---|---|---|---|
| Record limit | Depends on memory | Up to 25,000 | 50-250 |
| Name length | No restrictions | No restrictions | Limited |
| Contact photo | Supported | Supported | Not supported |
| Additional. fields | Any quantity | Any quantity | Number only |
Use this method only in extreme cases when other methods are not available. To make full use of modern smartphones, storing contacts on a SIM card is considered an outdated approach, depriving you of many convenient functions for managing your address book.
Branded utilities from smartphone manufacturers
Large electronics manufacturers are developing their own powerful tools for data migration, which are often faster and more stable than standard tools Android. Applications such as Samsung Smart Switch, Xiaomi Mi Mover or Clone Phone from OPPO allow you to transfer not only contacts, but also settings, applications and media files.
Install the appropriate application on both devices. Typically, a new phone will already have it pre-installed. Launch the app and select the device role: “Sender” on the old phone and “Recipient” on the new one. To connect, devices can use Wi-Fi Direct, creating a direct secure network between each other, or a QR code for fast connection.
In the data selection menu, check the "Contacts" box. You can select specific groups or transfer the entire phone book. After confirmation, the copying process will begin, the progress of which will be displayed on the screen. When completed, you will receive a complete copy of your address book with all details preserved, including rings and addresses.
What to do if the applications do not see each other?
Make sure that both phones have power saving mode turned off and GPS is turned on. Sometimes antiviruses or firewalls can block the local Wi-Fi Direct connection, which is necessary for the operation of proprietary utilities.
The main advantage of such utilities is the ability to transfer data even between different operating systems (for example, from iOS to Android), although within the framework of our topic we are considering the Android-Android combination. These tools often bypass system limitations, allowing you to transfer data faster than through the cloud.
Manual export and import via VCF file
For advanced users or in situations where you need to create an archive copy, the manual method of working with files in the .vcf (vCard) format is convenient. This format is an international standard for exchanging electronic business cards and is supported by absolutely all email clients and phone books.
Export contacts to a file as described in the section about Bluetooth, but save the file to internal memory or a microSD card. Then copy this file to your computer, flash drive, or send it to yourself by email. On the new device, download the file, open it and the system will offer to import the records it contains.
This method gives complete control over the process. You can edit the file on your computer, remove duplicates using special apps and split a large database into several smaller files for convenience. This is also a great way to make a backup copy that can be kept for years.
- 💾 The .vcf file can be opened with any text editor to view the data structure.
- 📧 Sending the file to yourself is the fastest way to transfer it between phones without cables.
- 🔄 When importing a large file, your phone may “think” for a few minutes - do not interrupt the process.
⚠️ Attention: Menu interfaces may differ depending on the version of Android and the manufacturer’s shell (MIUI, OneUI, ColorOS). If you do not find the item you need, use the search in the settings.
☑️ Check before transfer
Solving problems with duplicates and merging
A frequent problem after data transfer is the appearance of duplicate contacts, when the same entry is saved several times with slight differences. Modern smartphones based on Android have built-in algorithms for searching and combining such records, which greatly simplifies putting things in order.
Go to the contacts application, open the menu and select Manage contacts or Merge duplicates. The system will scan the database and offer a list of pairs or groups of contacts that it believes belong to the same person. You can confirm the merge for all entries at once or view them one by one.
If automatic merging did not work correctly, you can use third-party applications to clear the phone book from the store Google Play. They allow you to flexibly customize the search criteria for duplicates: by phone number, by name, or by matching several fields at the same time.
It is also worth checking whether contacts have been synchronized from several sources at once (for example, simultaneously from a SIM card and from WhatsApp). In the contact display settings, you can choose which sources to show in order to visually clear the list without physically deleting the data.
Regularly cleaning duplicates after data transfer saves time in the future and makes finding the desired number instant.
Frequently asked questions (FAQ)
Will photos of contacts be transferred when synchronization?
Yes, when using a Google Account or proprietary utilities (Smart Switch, Mi Mover), contact photos are transferred along with the numbers. When exporting to a SIM card, images are lost.
What to do if contacts are not synchronized?
Check your Internet connection, make sure synchronization is enabled on your device in your account settings. Try deleting the account from the phone settings and adding it again.
Is it possible to transfer contacts if the old phone does not turn on?
If the phone does not turn on, but the SIM card is intact, you can insert it into the new phone and import numbers from it. If the contacts were stored only in the internal memory of the faulty device, the phone will need to be repaired to retrieve the data.
How long does it take to transfer 1000 contacts?
Via Google Account or Quick Share it takes from 1 to 5 minutes depending on the speed of the Internet or connection. Through a SIM card, the process may take a little longer due to chip write speed limitations.
Will contacts disappear from the old phone after the transfer?
No, when using copy methods (syncing, Bluetooth, files), the data on the old device remains intact. They are deleted only if a factory reset is performed (Wipe Data).