You can use the Backup and Restore feature to sync your data between different devices. (Please note Sync service requires Upgrade).
Before sync data between two devices, please make sure to log in to your iCloud account using the same user name and password. iCloud account is set on your Device's Settings->iCloud. If you use different iCloud account, your data will not be synced.
First back up data on one device by tapping Sync and then Backup Data. After data is backed up. Go to your second device and restore data by tapping Sync and then Restore Data.
To be able to view the data on the second device, you must use the same Master Password as the first device. If you use different Master Passwords, you will not be able to open the restored data.