A free app for Android, by SimplerApps.

Easy Backup – Contacts Transfer and Restore is a simple tool that allows you to transfer contacts from one phone to another without having to do anything complicated. You can transfer contacts in a matter of seconds, and it is easy to use and very user-friendly.

The transfer process is very easy to do, and it is a quick and simple process that can be done in a few minutes. 

It is very important that you have a good and stable connection, and you should make sure that you have a good signal strength. If you are using a Wi-Fi connection, you should check that the connection is stable and that you have a good signal strength.