Are iPhone contacts saved to SIM or phone?

iPhone stores contacts in the location set by Settings → Contacts → Default Account. New contacts are stored on the internal storage of the device, and then synchronised with the account selected here. This can be iCloud if activated and selected. Contacts can be imported from the SIM, but not saved to the SIM.

When changing SIM cards on my iPhone Will I lose everything on my phone?

No. The sim card only holds your number, and carrier information. It has nothing to do with your phone’s data, contacts or Apps. Those will remain on the iPhone.

How can I tell what is stored on my SIM card?

The direct way of viewing the contents of a SIM card is through an actual cell phone containing the card. You may also find out what is on a SIM card by transferring the information to your computer through a SIM card reader.

What is stored on my SIM card?

Despite the complicated name, it’s basically your phone number. They can also store contact information, telephone numbers, SMS messages, billing information and data usage. Plus, your SIM will have a personal identification number (PIN) to protect against theft.

Does the iPhone store contact data on the SIM card?

As you were told by razmee209, the iPhone does not store any contact data on the SIM card as other phones use to. This is by design. Contacts are saved in the Contact application on the phone, and can be synced to Address book, or Windows Contacts, or Outlook on the computer.

Is it safe to store data on the SIM card?

All user data on the iphone is encrypted as is all data in your iCloud account and all data transmissions to and from your iCloud account are over encrypted channels. Storing anything on the SIM would actually be counter to iOS’s entire security model to protect your data.

Is the SIM card a memory card or a storage device?

The SIM Card is not a memory card. You can’t store random files or data on a SIM. You can store a limited set of phone numbers (name and number combo). But that’s about it. The SIM card is how the phone identifies who you are to the cellular networK. Everything on your iPhone is stored on the phone.

What happens to SIM card data when it is replaced?

SIM cards are not storage. They can be used to hold a number of contacts but virtually no smartphone does that by default. Your data is on your old iPhone and nowhere else if you’ve not used iCloud. If Apple decide to repair by replacement, which they often do, your data is gone. ZenKey trust alerts & notifications warn you of potential fraud.