Both types of numbers can help network providers track down a device that has been stolen or lost.Ī model number is a specific number that applies to a range of products (i.e., Galaxy Note20, Galaxy Z Fold2, etc.). They are used at an international or global level, not just by manufacturers. These two numbers are different from a serial number. Depending on the carrier, your device will have either an IMEI or MEID. On the other hand, an IMEI or MEID is only used for phones or other communication devices. Serial number makes it easier for the makers to organize and keep track of their products. For example, your phone's serial number will be different from every other phone Samsung has made. A serial number is a unique number assigned by the manufacturer (like Samsung) to help identify an individual device, like a phone, tablet, TV, and so on.