Samsung Galaxy S23 Ultra

Released Feb 2023 · 9 model codes · firmware for 176 CSC regions

Display size: 6.8"
RAM: 12 GB
Battery: 5000 mAh
Rear camera: 200 MP + 10 MP + 12 MP + 10 MP
Storage: 256 GB · 512 GB · 1 TB

Download firmware Update history Specifications

Software support

Update policyMonthly security updatesOn Samsung's current security update list

Security updates untilJan 31, 2028As published by Samsung

Latest official updateOne UI 8.5 · Android 16S918BXXSAFZI1 · Sep 30, 2026

Security patch levelSeptember 2026Monthly release fixed 121 vulnerabilities

Choose your model

Firmware is specific to the model code. Find yours on the box or in Settings › About phone, then pick it below.

ModelSold inFirmwareLatest build

SM-S918BSold in60 countriesFirmware113 CSCs · 5,213 buildsLatest buildS918BXXSAFZH3 · Aug 11, 2026→

Software updates

One UI and Android versions of the Galaxy S23 Ultra, with the first release of each.

Sep 2026
Android 17
First firmware build: S918NKSU8GZIF (SM-S918N)
May 2026
One UI 8.5 · Android 16
Official release: S9180ZHU7FZDP (SM-S9180)
Oct 2025
One UI 8 · Android 16
Official release: S918BXXU8EYI5 (SM-S918B)
Apr 2025
One UI 7 · Android 15
Official release: S918USQU6DYD9 (SM-S918U)
Mar 2024
One UI 6.1 · Android 14
Official release: S9180ZHU2CXCF (SM-S9180)
Oct 2023
One UI 6 · Android 14
Official release: S918BXXU3BWJM (SM-S918B)

Specifications

As published by Samsung for the SM-S918B; other model codes can differ (chipset, network bands).

Display

Display size: 173.1mm (6.8" full rectangle) / 172.5mm (6.8" rounded corners)
Resolution: 3088 x 1440 (Quad HD+)
Display type: Dynamic AMOLED 2X
Refresh rate: 120 Hz

Platform

CPU speed: 3.36GHz, 2.8GHz, 2GHz
CPU cores: Octa-Core

Memory

RAM: 12 GB
Storage: 256 GB

Camera

Rear camera: 200.0 MP + 10.0 MP + 12.0 MP + 10.0 MP
Rear camera aperture: F1.7 , F4.9 , F2.2 , F2.4
Front camera: 12.0 MP
Video recording: UHD 8K (7680 x 4320) @30fps

Battery

Battery: 5000 mAh
Talk time: Up to 49

Body

Where it's sold

Sold in 73 countries.

Europe35

Albania
Austria
Azerbaijan
Belgium
Bosnia & Herzegovina
Bulgaria
Croatia
Czechia
Denmark
Estonia
Finland
France
Germany