Verify your phone’s eligibility for activation and stay protected when.. The imei is a unique number for your phone itself, while the sim card is what connects you to your provider’s network.
Think of the imei as your phone’s id, and the sim card as your network access.. The international mobile equipment identity (imei) [1] is a numeric identifier, usually unique, [2][3] for 3gpp and iden mobile phones, as well as some satellite phones.