If you want to copy contacts from an Android phone to a SIM card, you can read this guide. Then you can take out your SIM card from your old Android device, and install it on your new phone. Once done, you can import your contacts to your new device without any hassle. So, let's copy your contacts to SIM.

Before you transfer your important contacts from Android to your SIM card, you'd better back up your contacts first, which can prevent data loss even you fail to import your contacts. One effective and convenient method is to back up your Android contacts to your computer with Coolmuster Android Assistant. This comprehensive tool enables you to transfer and manage your contacts on your computer.
You can even use this app to export your contacts from your old phone to your computer, and them import the contacts to another Android device without your SIM card's help.
Here's how to back up Android contacts to a computer:
1. Install and launch Coolmuster Android Assistant on your computer.
2. Connect the Android phone to computer with a USB cable, then enable USB debugging and grant permission on your phone as prompted. After this program recognizes your device, you will see the main interface of this program as below.

3. Manage Android contacts. Click Contacts from the left panel, select the contacts you want to back up, and tap Export on the top menu, enter the new contact details in the pop-up window and confirm your choice.

Further reading: Want to modify contact details on computer before copying phone contacts to SIM? You can refer to the similar ways in this article: How to edit Samsung contacts on computer.
Well, it is easy to export contacts to SIM from Android phone, as long as you select the right way. Through my trial, I find the following two ways are very easy and economical to copy phone contacts to SIM.
First, you can copy phone contacts to SIM with the Contacts app on your phone and it enables you to edit, add, import, export and share contacts on your Android phone without installing extra apps.
How to transfer contacts from phone to SIM card on Samsung?
1. Make sure the SIM card has inserted to your Samsung phone, then open the Contacts app on your phone.
2. Tap the three vertical dots (or More option) > Manage contacts > Import/Export contacts.
3. Select Export to SIM card under EXPORT. Then select your wanted contacts or press Select all. After the transfer process is over, all phone contacts will be on the SIM card.

Read also: Accidentally lose contacts from SIM card? 3 ways here may help you retrieve deleted contacts from Android SIM card.
Another way to export contacts to SIM card from Android phone is using Easy Backup. This easy app allows you to back up your phone's entire contacts list to a secure cloud with one single click. Besides, it also supports to share the .VCF contacts to any email address, WhatsApp, Gmail, Google Drive, SMS, Dropbox, Skype, Telegram, etc. What's more, you can import/export contacts with it too.
How do I transfer contacts to SIM?
1. Install and launch Easy Backup on your Android phone.
2. Back up contacts to cloud. Tap Backup option from the main interface of the app, select Tap to Upload and transfer the selected contacts from Android device to the cloud.
3. Restore contacts from cloud to the SIM card. Insert the target SIM card into your Android phone, open Easy Backup on your Android phone and click My Backups. Next, select the cloud backups you want to transfer and hit Tap to Download, then your contacts will be downloaded to the inserted SIM card. After that, you can preview the downloaded contacts from this app.

The app Copy to SIM Card can also help you transfer your Android contacts to a SIM card. This app is available on Google Play, and it supports Android 8.0 and later.
Here's how:
1. Install the Copy to SIM Card app on your Android phone, and then open it.
2. The first time you open it, the app will ask for permission to access your contacts and sometimes to manage phone calls/SIM. You must Allow these permissions for the app to function.
3. Once inside the app, look for a tab or section labeled "CONTACTS ON PHONE". Then select the contacts you want. Finally, click "Copy" to start the process. Then your contacts will be copied to your SIM card.

Another way to export contacts to SIM card from Android phone is using Easy Backup. This easy app allows you to back up your phone's entire contacts list to a secure cloud with one single click. Besides, it also supports to share the .VCF contacts to any email address, WhatsApp, Gmail, Google Drive, SMS, Dropbox, Skype, Telegram, etc. What's more, you can import/export contacts with it too.
How do I transfer contacts to SIM?
1. Install and launch Easy Backup on your Android phone.
2. Back up contacts to cloud. Tap Backup option from the main interface of the app, select Tap to Upload and transfer the selected contacts from Android device to the cloud.
3. Restore contacts from cloud to the SIM card. Insert the target SIM card into your Android phone, open Easy Backup on your Android phone and click My Backups. Next, select the cloud backups you want to transfer and hit Tap to Download, then your contacts will be downloaded to the inserted SIM card. After that, you can preview the downloaded contacts from this app.

If you change a new Android phone or the SIM card, and are hunting for how to copy contacts from Android phone to SIM, this post may well solve your problem. You can select either way to export contacts to SIM card. And if you need to manage your contacts before or after exporting, you can try Coolmuster Android Assistant, the one-click way to safely edit, add, delete, import or export contacts on computer.
Well, if you encounter any problem during use, or if you have better ways to copy phone contacts to SIM, feel free to leave a comment below.
Related Articles:
How to Transfer Contacts from iPhone to SIM Card [2 Ways]
How to Transfer Contacts from SIM Card to Computer
3 Proven Ways to Restore Deleted Contacts on Android Phone Memory & SIM Card
[Full Guide] How to Transfer Contacts from Android to Android in 7 Ways