Samsung Galaxy Watch4 SM-R860 Firmware Download – Stock Firmware

Samsung Galaxy Watch4 40mm SM-R860 Firmware Download

Download firmware for the Samsung Galaxy Watch4 Bluetooth 40mm SM-R860. This page provides firmware information for the SM-R860 model and a direct download link to the firmware file hosted on Google Drive.

The Samsung Galaxy Watch4 SM-R860 is the 40mm Bluetooth version of the Galaxy Watch4. It has received multiple software updates since its original Android 11 / One UI Watch 4.5 firmware, including Android 13, Android 14 and the latest Android 16 / One UI Watch 8 releases.

Samsung Galaxy Watch4 SM-R860 Firmware Information

Samsung's official update information confirms that R860XXS2JZG3 is a Galaxy Watch4 SM-R860 firmware release with Android Wear 6.0 and an August 5, 2026 security patch.

Download Samsung Galaxy Watch4 SM-R860 Firmware

The firmware file for the Samsung Galaxy Watch4 40mm SM-R860 is available through the Google Drive link below.

Firmware Download

Download Samsung Galaxy Watch4 SM-R860 Firmware

Before downloading, verify that your device model is SM-R860.

Samsung SM-R860 Firmware Versions

The SM-R860 has received numerous firmware releases over the years. Firmware databases list releases beginning with Android 11 and continuing through Android 13, Android 14 and Android 16 / One UI Watch 8.

Some important firmware versions include:

Firmware listings confirm these versions and their corresponding operating-system generations.

Latest Samsung Galaxy Watch4 SM-R860 Update

The latest firmware currently listed by Samsung for the SM-R860 is:

Build Number: R860XXS2JZG3
Android Version: Android Wear 6.0
Release Date: August 25, 2026
Security Patch Level: August 5, 2026

The update primarily contains security improvements.

SM-R860 Firmware Compatibility

This firmware page is specifically for the:

Samsung Galaxy Watch4 Bluetooth 40mm — SM-R860

Do not confuse the SM-R860 with other Galaxy Watch4 models such as:

• SM-R870 — Galaxy Watch4 Bluetooth 44mm

• SM-R875 — Galaxy Watch4 LTE 44mm

• SM-R865 — Galaxy Watch4 LTE 40mm

The exact model number is important when selecting firmware.

Important Information

Before downloading firmware, check the model number on your Galaxy Watch4 and make sure it shows SM-R860.

Firmware packages can contain system files intended for a specific device model and regional configuration. Using an incompatible firmware package may cause software problems.

The firmware provided on this page is hosted on Google Drive. The download link above points directly to the Google Drive file provided for this SM-R860 firmware.

Frequently Asked Questions

What is Samsung SM-R860?

SM-R860 is the model number of the Samsung Galaxy Watch4 Bluetooth 40mm.

What Android version does the Galaxy Watch4 SM-R860 use?

The latest Samsung firmware listed for the SM-R860 is based on Android Wear 6.0, corresponding to Android 16 / One UI Watch 8.

What is the latest SM-R860 firmware?

The latest firmware currently listed by Samsung is R860XXS2JZG3, released on August 25, 2026, with the August 5, 2026 security patch.

Is SM-R860 the 40mm Galaxy Watch4?

Yes. SM-R860 is the Bluetooth 40mm version of the Samsung Galaxy Watch4.

Where can I download SM-R860 firmware?

You can download the firmware provided on this page using the Google Drive download link above.

Samsung Galaxy Watch4 SM-R860 Firmware Download

If you are looking for Samsung Galaxy Watch4 SM-R860 firmware, SM-R860 stock firmware, or Galaxy Watch4 40mm firmware, use the download link provided above.

Device: Samsung Galaxy Watch4 Bluetooth 40mm
Model: SM-R860
Latest Firmware: R860XXS2JZG3
Android: Android 16
One UI Watch: One UI Watch 8
Security Patch: August 5, 2026
Download: Google Drive