Changing a mobile device is always stressful, especially when it comes to saving important information. The user’s most valuable asset is often not the device itself, but the database of numbers of friends, colleagues and services accumulated over the years. Fortunately, the ecosystem Android offers many built-in tools that make the migration process as painless as possible. In this article, we will analyze all the existing methods for synchronizing your address book, from cloud technologies to classic methods using SIM cards.
You can choose a method that suits your situation: do both devices have access to the Internet, do they have the same versions of the operating system and how large is the amount of data. We will consider both standard tools Google Accountand specialized utilities from manufacturers. The right approach will allow you to avoid duplicate entries and loss of numbers with additional fields such as email or photo.
Synchronization via Google Account: the most reliable method
Using Google cloud storage is the “gold standard” for Android users. This method does not require a direct connection between devices and guarantees data safety even if the old device breaks down. If you previously signed into your account on your old phone, then your contacts are most likely already in the cloud. You just need to activate synchronization on the new device.
First, make sure that the save option is enabled on your old smartphone. Go to Settings → Accounts → Google and check whether the slider next to the “Contacts” item is active. If the checkbox is checked, the system automatically uploads all changes to the company’s servers. On a new phone, you just need to enter the same login and password during the initial setup or add an account manually through the settings menu.
After logging in, the data will start loading automatically. This process can take from a few seconds to several minutes depending on the Internet speed and the number of entries. It is important to understand that synchronization works both ways: if you delete a number on one device, it will disappear on the other, as well as in the web version of Google Contacts.
Before transferring, go to contacts.google.com from your computer to make sure that all numbers are actually saved in the cloud and not empty entries.
⚠️ Attention: Make sure that the latest version of Google Play services is installed on both devices. Outdated software may cause authorization errors or partial data loading.
The main advantage of this method is its independence from the physical state of the SIM card or the presence of a cable. You can restore your phone book even on a tablet or through a browser on a PC. However, it is worth remembering that for the method to work, a stable connection to a Wi-Fi network or mobile data is required.
Using the “Quick Connect” function and cables
Modern smartphones from Samsung, Xiaomi, Realme and other brands have their own utilities for data migration. For example, for Samsung it is Smart Switch, for Xiaomi it is Mi Mover. These apps create a direct connection between devices via Wi-Fi Direct or a dedicated USB-C to USB-C cable. This approach is ideal when you need to download not only contacts, but also photos, messages and system settings.
The process usually looks like this: you install the application on both phones (new ones often have it pre-installed), launch it and select the device role (“Sender” or “Recipient”). After scanning the QR code or connecting the cable, the system will prompt you to select the types of data to transfer. Select only contacts or all at once if you want to clone an old phone.
- 📱 Samsung Smart Switch: supports wireless transfer and work via cable, even copies the arrangement of icons on the desktop.
- 🔄 Xiaomi Mi Mover: allows you to transfer data from iOS to Android, as well as between Xiaomi devices at high speed.
- 🔌 Google Cable: when setting up a new Pixel or other pure Android for the first time, you can use a cable from kit for copying data from an old device.
Using a cable provides higher transfer speeds and connection stability compared to wireless methods. This is critical if you have several thousand entries with high-resolution photos in your address book. During the transfer process, the device screens should not go dark, so it is recommended to keep them connected to the charger.
Transfer via SIM card: classic method
Despite the development of cloud technologies, the method of exporting to a SIM card remains relevant. It is indispensable in situations where there is no access to the Internet, devices have different operating systems (for example, switching from a feature phone), or the user prefers to store data locally. However, this method has significant limitations in terms of data volume and format.
To transfer, go to the Contacts application on your old phone. Open the menu (three dots or stripes) and find the item Import/Export. Select the "Export to SIM" option. The system will warn you that only names and numbers will be saved, and additional fields (addresses, notes, photos) will be lost. Confirm the action and wait for the process to complete.
After that, move the SIM card to the new smartphone. Go to the same import/export menu and select “Import from SIM card”. Specify the storage location - it is better to immediately select Google Account or phone memory, so that in the future you do not depend on the capacity of the chip. The copying process will take just a few minutes.
| Characteristics | SIM card | Google Account | VCF file |
|---|---|---|---|
| Volume memory | Limited (usually up to 250) | Unlimited | Depends on phone memory |
| Saving photos | No | Yes | Yes |
| Add. fields (email, address) | No | Yes | Yes |
| Network dependence | No | Internet required | No |
⚠️ Attention: Older SIM cards may have limited memory capacity. If you have more than 200 contacts, the system may offer to save only some of them or require deleting old records from the chip.
Export and import via VCF file
Format VCF (vCard) is a universal file containing all information about the contact in text form. This method is great for creating a backup copy or transferring data via instant messengers and email. You can upload the entire phone book into one file or divide it into several parts for convenience.
On your old device, open your contacts settings and select “Export to .vcf file.” The system will prompt you to select a storage location - internal memory or microSD memory card. Remember the path to the file. Then this file can be transferred to a new phone in any convenient way: via Bluetooth, WhatsApp, Telegram, or simply by copying it to a computer and then to a new device.
On the receiving device, just find this file through any file manager and click on it. The system will automatically offer to import the found contacts. You can choose which account or storage to record them in. This is one of the most flexible methods that allows you to easily combine databases from different devices.
What to do if the file does not open?
If the system does not offer import when you click on a VCF file, try opening it through the Contacts application manually through the import menu, specifying the path to the file. Also make sure that the file is not damaged during transfer.
The advantage of the VCF format is its compatibility. Such files are readable not only on Android, but also on iPhone, Windows and macOS. This makes the method ideal for cross-platform porting. In addition, the file can be stored on a flash drive as an archive copy in case you lose access to your accounts.
Transfer via Bluetooth and Wi-Fi Direct
If you don’t have a cable at hand and the Internet is unstable, wireless data transfer protocols come to the rescue. Bluetooth is suitable for transferring small groups of contacts or individual cards, while Wi-Fi Direct (implemented in functions like Nearby Share or Quick Share) can handle larger volumes faster.
To send via Bluetooth, open the desired contact or select several entries in the list. Click the Share button and select the Bluetooth icon. The receiving device must have visibility enabled. After pairing the files, confirm receipt. This method is quite slow and inconvenient for mass migration of an entire workbook at once.
A more advanced option is to use the function Quick Share (formerly Nearby Share). It works similar to Apple's AirDrop. Turn on the function in the notification shade on both phones, select the contacts to send and find the device in the list of nearby devices. The transfer speed here is much higher, and the connection is established automatically without complex settings.
- 📶 Bluetooth: universal, works on any phone, but very slow for large volumes.
- ⚡ Quick Share: high speed, convenient for transferring between Android devices, requires geolocation to be enabled.
- 📤 ShareMe / Zapya: third-party applications that create a local Wi-Fi network for ultra-fast transfer files of any type.
When using wireless methods, it is important to keep the devices close to each other. Obstacles such as walls or metal surfaces can slow down the connection speed or cause breaks. For critical data, always make a backup copy in another way.
For bulk transfer of thousands of contacts, use cable or cloud synchronization; Leave Bluetooth for quickly sending 1-2 numbers to a colleague or friend.
Solving problems with duplicates and broken records
After transferring data, users often encounter the problem of duplicating contacts. This happens when the same number is stored on the SIM card, in the phone memory, and in the Google Account. Fortunately, modern versions of Android have built-in tools for merging such records.
Go to Google's Contacts app (it's often installed by default, even on custom skins). In the settings menu, find the option “Correction and management” or “Merge duplicates”. The system will analyze the database and offer to merge records with the same names or phone numbers. You can do this automatically or manually confirm each merge.
It is also worth paying attention to the encoding of names. When transferring from older devices, Russian letters may appear as hieroglyphs or question marks. In this case, it helps to re-export to VCF with the correct UTF-8 encoding or use third-party contact editors on your PC to correct the names before the final import.
⚠️ Attention: Before mass merging duplicates, make sure that the information in the records is up to date. When merging, the system can leave data from one entry and remove additions from another if the algorithm determines them as unnecessary.
Regular cleaning of the phone book improves search performance and speeds up dialing. Don't be lazy about deleting contacts from organizations that no longer exist or numbers marked as spam. A clean database takes up less space and synchronizes faster.
☑️ Checking the quality of the transfer
Frequently asked questions (FAQ)
What to do if contacts are not synchronized with Google?
Check your Internet connection and make sure that the “Contacts” item is checked in your account settings. Try unchecking the box, rebooting your phone and checking it again. Also clear the cache of the Contacts application and Google Play services.
Is it possible to transfer contacts if the screen of your old phone is broken?
Yes, if USB debugging was enabled on the phone or synchronization with Google was previously set up. You can log into your account from any other device or computer and see all your saved numbers. If the screen does not respond, but the sensor works, you can try connecting a USB mouse via an OTG cable for control.
How many contacts fit on a SIM card?
Capacity depends on the type of SIM card and operator. Typically this is from 150 to 250 records. In this case, only the name (often with a length limit) and one phone number are stored. All other data is cut off.
How to transfer contacts from iPhone to Android?
The easiest way is to log into iCloud on your computer, export your contacts to vCard format and import them into Google Contacts. Or use the “Move to iOS” application the other way around (some analogues for Android allow you to take data from the iPhone via Wi-Fi).
Will contacts disappear from the old phone after the transfer?
No, when using copying methods (Bluetooth, VCF, cable), the data remains on both devices. When synchronized via Google Account, they are also duplicated in the cloud. Deletion will only occur if you specifically clear the memory of the old device or delete the account from it without first saving a local copy.