Using files known as vCards, you can easily transfer contacts to your Samsung Galaxy S10 from an Android or iPhone. Here are two ways to do it.

Google Backup and Restore allows you to sync your data to your Google account and easily retrieve it on your new device. A PC transfer method allows you to back up your data to a computer and then ...

Learn how to transfer WhatsApp messages and media between Android phones with this step-by-step guide. No data loss, seamless ...

If your new phone no longer supports SIM cards, or you don't want to use them anymore, you can convert to eSIM instead.