Changing a smartphone is always a strange mix of emotions: the joy of a new gadget and the fear of losing important data. Among all the files that are stored in the device’s memory, these are the ones that are of critical importance. Losing your favorite tune or downloaded game is unpleasant, but you can restore them. But losing the numbers of colleagues, friends or delivery services can paralyze your daily life. contacts are critical. Losing your favorite tune or downloaded game is unpleasant, but you can restore them. But losing the numbers of colleagues, friends or delivery services can paralyze your daily life.
Modern ecosystem Android offers many options for data migration, from cloud services to direct cable transfer. However, the abundance of methods is often confusing: which method to choose so as not to get confused in duplicates and not lose the numbering? In this article, we will analyze each working method in detail, evaluate their pros and cons, and also give recommendations on how to prepare for the process.
Synchronization through a Google account: the most reliable method
The most logical and secure transfer method is to use the built-in Google synchronization mechanism. Since any modern phone requires linking to a Gmail account, your contacts may be saved to the cloud by default. This eliminates the need to use physical media or additional cables. Android requires linking to a Gmail account, your contacts can be saved to the cloud by default. This eliminates the need for physical media or additional cables.
To get started, you need to make sure that synchronization is enabled on your old device. Go to Settings, find the section Accounts and select your Google profile. Make sure the switch next to Contacts is active. If it was turned off, turn it on and force synchronization by clicking on the three dots in the corner of the screen and selecting the appropriate command.
After the data has gone to the cloud, the process on the new phone becomes automatic. It is enough to enter the same login and password when setting up the device for the first time. The system itself will pull up all saved records. However, it is worth remembering that this method only transfers text data: numbers, names and email addresses.
⚠️ Attention: Synchronization may take from a few seconds to 10-15 minutes depending on the size of your phone book and the speed of your Internet connection. Do not try to delete old data from your old phone immediately after logging into your account.
An important nuance is to check the source of the save. Often, out of habit, users save new numbers to the SIM card memory or local phone storage, and not to their Google account. Such entries are not automatically synchronized. To fix this, open the Contacts application, go to settings and select the function Import/Export, moving data from the device memory to your Google account.
Before full synchronization, go to contacts.google.com from your computer. There you can see all the saved numbers and, if necessary, merge duplicates before transferring to a new phone.
Using a SIM card to transfer numbers
The method using a SIM card is “old school,” but it is still relevant, especially if you need to quickly transfer the base to a feature phone or device without access to the Internet. The main advantage here is versatility: the data storage format on the chip is the same for all operators and phone models.
The process consists of two stages: export to the card and import from it. On an old smartphone, open the contacts application, go to the control menu (usually three dots or a gear) and select Import/Export. Next click Export to SIM card. The system will warn you about limiting the number of characters in the contact name, since the SIM card memory is very modest.
After the export is complete, move the SIM card to the new phone. Go to the contacts application on the new device, select the import/export menu again, but now specify Import from SIM card. You will be asked to select a destination: we recommend immediately saving to your Google account or phone memory, so that in the future you do not depend on physical media.
| Parameter | SIM card memory | Google Account | Phone memory |
|---|---|---|---|
| Contacts limit | 250-500 pcs. | 25,000+ pcs. | Depends on the model |
| Name length | Up to 10-14 characters | No restrictions | No restrictions |
| Additional. fields (email, address) | No | Yes | Yes |
| Risk of loss | High (physical wear and tear) | Minimum | Medium (if broken) |
The main disadvantage of this method is the loss of additional information. When saving to a SIM card, long names are cut off, second numbers, email addresses, birthdays and messenger links are deleted. All that remains is the name and one main phone number.
Direct transmission via Bluetooth or Wi-Fi Direct
If you don’t have the Internet at hand or you don’t want to “shine” your data in the cloud, you can use direct wireless transmission. Most modern shells Android (MIUI, OneUI, ColorOS) have built-in data migration tools that use Wi-Fi Direct technology to create a direct channel between devices.
To use the standard method via Bluetooth, open the contacts list on your old phone. Select the desired entries (you can select “All” from the menu). Click the "Share" button and select Bluetoothfrom the list. On the receiving device, you must turn on visibility and confirm pairing.
More advanced users can use the function Nearby Share (Fast sending), which is faster and more stable than classic Bluetooth. This protocol automatically selects the best transfer method (Wi-Fi or Bluetooth) depending on the file type and the distance between the devices.
⚠️ Warning: When transferring a large number of contacts (more than 500) via Bluetooth, the process may take a significant amount of time and drain the battery of both devices. Make sure that both phones have at least 40% charge.
There are also proprietary utilities from manufacturers, such as Samsung Smart Switch, Xiaomi Mi Mover or Clone Phone from OPPO. These applications create a temporary, secure Wi-Fi network between two phones and transfer not only contacts, but also photos, system settings and even the arrangement of icons on the desktop.
☑️ Preparing for transfer via Bluetooth
Export to VCF file and manual copying
Universal format VCF (vCard) is the de facto standard for storing contact information. A file with the .vcf extension can contain one contact or the entire phone book as a single archive. This method is ideal for creating a backup copy that can be stored on a flash drive, sent to yourself in instant messenger, or uploaded to any cloud drive.
To create such a file, go to the contacts application, select settings and item Export to .vcf file (or “Export to internal memory”). The system will prompt you to select a file name and save location. By default, the file is usually located in the root of the internal memory or in the folder Contacts.
The resulting file can be transferred in any convenient way: via a USB cable, connecting the phone to the computer, via Telegram (“Favorites”), by mail or via WhatsApp messengers. On a new phone, just download this file and click on it. The system will automatically offer to import the found contacts into the selected account.
What to do if the VCF file does not open?
Sometimes when transferring via instant messengers, the file extension may change or become damaged. If the phone does not see the file, try renaming it by explicitly adding the ending .vcf at the end of the name, or use a file manager to search and launch.
The advantage of the method is that the VCF file saves the entire data structure: avatars, additional numbers, addresses and notes. This is the only way to transfer contacts with all the “decorations” without using Google cloud services.
Third-party applications for data migration
The store Google Play presents many applications specializing in data transfer. They can be useful if the standard methods don't work for some reason or your phone's interface is too cluttered. Popular solutions include Copy My Data, Send Anywhere and various clones from phone manufacturers.
Such applications often work on the principle of scanning a QR code. You install the app on both phones, select the “Send” mode on one, and “Receive” on the other. The camera reads the code, the devices connect, and transmission begins. The interface of such apps is usually as simplified as possible for the user.
However, you should be careful when granting permissions. Many free apps may request access not only to your contacts, but also to your microphone, geolocation, or other data not relevant to the transfer. Always check access rights before installation.
⚠️ Attention: Application interfaces and menu layout may vary depending on the Android version and the manufacturer's shell (Samsung, Xiaomi, Pixel). If you do not find the item you need, use the search inside the settings menu for the word “Contacts” or “Synchronization”.
The use of third-party software is justified when transferring data between different ecosystems, for example, from iOS to Android or from an old phone based on Symbian. In such cases, specialized utilities are often the only working option.
The cleanest and most complete data transfer is carried out through a VCF file or proprietary utilities of manufacturers (Smart Switch, Mi Mover), as they preserve the record structure without loss.
Solving problems with duplicates after migration
A common problem after migration data becomes the appearance of duplicates. This happens when contacts were saved simultaneously to the SIM card, to the phone memory, and to the cloud. As a result, you can see three identical “Mom” entries with different source icons.
Modern versions Android and the Google Contacts application have a built-in merging function. Go to the application, click on the profile icon or menu and select Contact management -> Merge and correct. The system will automatically find duplicates and offer to merge them into one card.
If automatic merging does not work, you will have to do it manually. Open the duplicate entry, click the menu (three dots) and select Merge. Then select the second contact you want to merge with. All fields (numbers, email, addresses) are summarized in one card.
To prevent this situation in the future, set up your phone so that new contacts are saved only to your Google account by default. This can be done in the Contacts application settings in the “Account for new contacts” section.
Frequently asked questions (FAQ)
Will photos of contacts along with numbers be transferred?
Yes, photos will be transferred if you use synchronization through a Google account, VCF file transfer or branded ones utilities (Smart Switch, Mi Mover). When transferring via a SIM card, photos will be lost, since the SIM card's memory is not designed to store images.
What to do if contacts are not displayed after logging into Google?
Check whether synchronization is enabled in your account settings. Also make sure the correct account is selected in the Contacts app's display settings. Sometimes clearing the cache of the Google Play Services application and rebooting the phone helps.
Is it possible to transfer contacts if the screen of your old phone is broken?
If the sensor does not work, but there is an image, connect a USB mouse via an OTG adapter. If the screen is completely black, but the phone turns on, try connecting to the computer in debug mode (if it was turned on previously) or remove the SIM card if the numbers were stored on it.
How long does it take to transfer 1000 contacts?
Via Google cloud it takes from 1 to 5 minutes depending on the Internet speed. Via Bluetooth the process can take 10-20 minutes. Branded Wi-Fi Direct utilities handle this volume in 1-2 minutes.
Will contacts disappear from the old phone after the transfer?
No, when using copy methods (sync, Bluetooth, VCF), the data on the old device remains intact. They are deleted only if you perform a full Factory Reset manually.