Function description:
Backup
1. A backup is simply a copy of the local data into a file.
2. If there is a backup of 100 contacts, then backup of 100 contacts will be created.The restoration will redirect the 100 people back to their phones.
Synchronous:
1. Synchronization, unlike backup, is used for collaboration between multiple devices.
2. Suppose you have two phones and a web server, each with the same account.
Three contacts A, B and C were created on the two phones and the webpage respectively. Once connected to the network, the synchronization system will automatically synchronize the three contacts to other devices, which means that the last two phones and the webpage see A, B and C.
3. Changes and deletes to synchronized data are also synchronized.If a phone deletes A and modifies B, wait for some time to synchronize, and then the other two devices will do the same.
4. Open a web page, import contacts and text messages, wait for synchronization, and contacts will appear on the page automatically.And if a person's phone is modified on the web, the phone will be modified accordingly.Photos can be synced and viewed directly on the web under the WiFi.
Notes:
1.The speed of synchronization is limited by the speed of the network.
2. MI phone and REDMI phone system have the function of local backup. In addition, MI phone and REDMI phone also support cloud service synchronization (which requires the device to log into MI account).