Model Reference
Samsung Galaxy Model Numbers
Every Samsung Galaxy device is assigned a model number beginning with SM- followed by an alphanumeric code. This model number identifies the specific hardware variant of your device, including its chipset, region, and connectivity options. Model numbers are essential for finding the correct firmware, accessories, and support information.
For example, the Galaxy S26 Ultra may carry the model number SM-S928B in international markets, while a different region may use a variant with a different chipset and a different model number.
This independent reference explains how Samsung model numbers work and how to find the model number for your Galaxy device.
How model numbers work
A Samsung model number follows the format SM-XXXX where XXXX is a three-to-five character code. The first letter after SM- often indicates the device category (S for Galaxy S series, Z for foldables, A for Galaxy A series, etc.). Subsequent characters identify the specific model and generation. Regional variants of the same device may have different model numbers reflecting different chipsets or connectivity bands.
Regional variants and model numbers
Samsung produces multiple hardware variants of the same device for different markets. For example, a device sold in North America may use a Snapdragon chipset while the same device sold in Europe uses an Exynos chipset. These variants carry different model numbers. Our device directory lists known model numbers and variants for each Galaxy device.
Finding your model number
You can find your device's model number in Settings > About phone > Model number. The model number is also printed on the back of the device or on the original packaging. Once you know your model number, you can use it to search our firmware ledger for firmware specific to your variant.
Frequently asked questions
How do I find my Samsung model number?+
Go to Settings > About phone > Model number on your Galaxy device. The model number is also printed on the back of the device (on some models) and on the original packaging. It begins with SM- followed by an alphanumeric code.
What do Samsung model numbers mean?+
Samsung model numbers begin with SM- followed by characters that identify the device series, specific model, and generation. The letter after SM- often indicates the series (S for Galaxy S, Z for foldables, A for Galaxy A, etc.). Regional variants of the same device may have different model numbers.
Are Samsung model numbers different by region?+
Yes. Samsung produces hardware variants for different markets with different chipsets and connectivity bands. These variants carry different model numbers. For example, the same device may have one model number for the Snapdragon variant and another for the Exynos variant.
What is the difference between a model number and a build number?+
A model number (SM-XXXX) identifies the hardware variant of your device. A build number identifies the specific firmware version installed. You need the model number to find the correct firmware for your device.
Can I use firmware from a different model number?+
No. Firmware is compiled for specific hardware variants. Installing firmware intended for a different model number can cause serious problems. Always verify your model number before looking up firmware information.
Related resources
SamsungFirmware.com is an independent information resource and is not affiliated with Samsung Electronics Co., Ltd. Firmware availability may vary by device model, country, carrier and region. See our editorial policy.