Does Erase All Content And Settings Delete Sim Card. If the contacts are on your sim card, you will not lose the contacts. Guide on how to reset s sim card with the device's settings app:
Go to android's settings > phone settings > reset > delete memory device > click ok. Select the devices tab, then highlight your iphone, and choose remove from. In an erase process dialog box, select ‘yes’ to start the erasing process.