Galaxy Watch6

Download Samsung Firmware SM-R935U

Samsung Galaxy Watch6

The latest firmware for Samsung Galaxy Watch6 (SM-R935U) is R935USQS2CZF5 with Android 16, released on July 13, 2026 for 1 region (CSC). Every official firmware build for SM-R935U, newest first: one row per build with all regions (CSC) that received it.

Latest build
R935USQS2CZF5 Android 16 · 3 months ago
Builds
12 builds
Regions (CSC)
1 region

Firmware builds for SM-R935U

Each firmware build has its own page at https://samfirm.shop/build/{PDA}, where {PDA} is the build number from the list above. Example: https://samfirm.shop/build/R935USQS2CZF5

SM-R935U update history

SM-R935U started on Android 13 and has received 2 major Android upgrades; it now runs Android 16. The newest build, R935USQS2CZF5, was released on July 13, 2026 with the July 2026 security patch. That patch (SMR Jul-2026) fixes 53 vulnerabilities, 6 of them critical. Over the last 12 months SM-R935U received 5 builds, spread over 5 different months.

Device specifications

Launched with
Wear OS
Display diagonal
3.3 cm (1.3")
Display technology
OLED
Display resolution
432 x 432 pixels
RAM
2000 MB
Flash memory
16 GB
Battery capacity
300 mAh
Weight
28.7 g
Band colour
Graphite

Specifications of SM-R935F, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

Changelog for SM-R935U

• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

• Stability and reliability
Device behavior has been improved.
• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

One UI 8 Watch Upgrade
Get things done

Stay on top of important tasks with the Now bar
Check the information you need right now and start essential features straight from your watch face. Ongoing tasks will appear in the Now bar at the bottom of your watch face so you can check key information quickly.

Do more with double pinch
Just pinch your thumb and index finger together twice to scroll through notifications, control music, take pictures, and more. You can also customize what happens wh...

• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

Show 7 older builds

• Security
The device is protected with improved security.

• Galaxy Watch for kids feature has been added
If your child only has a Galaxy Watch and no cellular phone, you can connect your mobile device to the child’s watch to manage it.
※The availability of this feature may vary depending on the watch model, carrier or data plan.
※To use this feature, you need to reset the watch and update the smartphone’s plugin. When this feature is enabled, some functions of the Watch might be restricted.

• Stability and reliability
The stability has been improved.

One UI 6 Watch Upgrade
A new look for your watch

Discover new watch faces
Express your individual style with these new premium watch faces. Spatial Number provides an analog clock on top of large bold digits. Simple Digital is for people who prefer a minimalist design. Ultra Info Board lets you quickly check your workout information. You can find these watch faces in the new featured watch faces section of the Galaxy Wearable app. You can also browse watch faces by keyword including colors,...

• Stability and reliability
Stabilization codes for touch-screen operation have been applied.

• Workout Tracker Support
By connecting your Galaxy Watch to your Samsung TV, you can view workout data from your watch on your TV screen.
※ Supported products and connection requirements
. Supports Samsung TV/Smart Monitor/Projector/Life Style products that are newly released from 2024. However, this may vary depending on Samsung policy.
. It is supported on the condition that the same Samsung account is registered on both the Samsung TV and the Galaxy Watch.
. For more information, please v...

• Stability and reliability
The stability has been improved.

Similar Models

Frequently Asked Questions

What is the latest Android version for SM-R935U?

The newest firmware for SM-R935U runs Android 16: build R935USQS2CZF5, released on July 13, 2026.

When did SM-R935U get its last update?

The latest build for SM-R935U, R935USQS2CZF5, was released on July 13, 2026 (3 months ago).

How often does SM-R935U get updates?

Over the last 12 months SM-R935U received 5 builds, with at least one new build in 5 different months.

Is the firmware for SM-R935U official?

Yes, all firmware files for SM-R935U are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-R935U using Odin?

To flash SM-R935U, you need to download the appropriate firmware, put your device into Download Mode, and use the Odin tool to load the BL, AP, CP, and CSC files.

Can I downgrade the Android version on SM-R935U?

Downgrading is only possible if the bootloader version (binary bit) of the old firmware matches the current one. Always check the binary version before flashing SM-R935U.