How to use icloud on iphone6s?

With an apple account, open the contents to be backed up in Settings -iCloud in the device, and open Settings -iCloud- Storage and Backup -iCloud Cloud Backup at the same time.

Then iCloud starts automatic backup. If you feel that the storage space is not large enough, you can pay for more storage space.

Viewing "Manage Storage Space" will show the space occupied by backup and mail; Select the backup of the device you want to manage, and iCloud will display local information and information such as the time and size of the latest backup.

By default, only five pieces of backup information are displayed in iCloud. If you want to see more information, you can click Show All Applications.

What is iCloud? What's the role?

ICloud is a cloud service provided by Apple, and users can store 5GB of data for free. You can back up and store photos, music, contacts, text messages, documents and other content, and wirelessly push them to all your devices when needed. Automatic execution. Simple and smooth, that's how it works. A complete platform for sharing experiences with friends and family. It is not only safe, but also provides a rich social experience, which can be easily accessed from any computer or device at any time. Applications available on iCloud include office productivity, development tools, media and widgets. Over time, a wider range of applications will be provided through easy-to-use market space and application development toolbox.