Download Samsung Firmware SM-R855N

Samsung Galaxy Watch3 41mm

The latest firmware for Samsung Galaxy Watch3 41mm (SM-R855N) is R855NKOU1BWK2, released on December 18, 2023 for 10 regions (CSC). Every official firmware build for SM-R855N, newest first: one row per build with all regions (CSC) that received it.

Latest build
R855NKOU1BWK2 2 years ago
Builds
10 builds
Regions (CSC)
10 regions

Firmware builds for SM-R855N

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/R855NKOU1BWK2

SM-R855N update history

The newest build, R855NKOU1BWK2, was released on December 18, 2023. No new build has appeared for 34 months, so regular updates for this model have most likely ended.

Device specifications

Display diagonal
3.05 cm (1.2")
Display technology
OLED
Display resolution
360 x 360 pixels
RAM
1024 MB
Flash memory
8 GB
Battery capacity
247 mAh
Weight
48.2 g
Band material
Leather
Band colour
Black

Specifications of SM-R855F, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

Changelog for SM-R855N

• Watch faces
2 new types of new Watch faces.
(Stretched Time, Perpetual)
• Stability and reliability
The stability for sensors has been improved.

• Watch Face
Enjoy new and improved watch faces with enriched style and customizable options.
- Two new Watch Faces have been added.
  (Pro analog, Gradient number)
• Samsung Health
- Through the updated 'Daily Activity Indicator', Mobile Health data is synchronized to improve convenience.
- Provides a recording function when snoring is detected, using your mobile phone while you sleep.

• GPS
The stability has been improved.

• Watch faces
- Support the new Watchfaces
• Exercise
- Support Group Challenge Widget in watch
- Provide more accurate calorie consumption levels based on HR (Except swimming)
• Detect falls
- More falls will be detected, but other activity may also be detected as falls.
• Calendar
- Increase the calendar synchronization period from 3 months to 1 year

• Improved Messaging App stability  
• Improved WiFi stability  
• Improved system stability and reliability

Show 3 older builds

• Improved Samsung Health Function
- You can now enjoy a group-walking challenge with your friends
- Reduced auto workout recognition time (running, rowing machine, elliptical)
- Enjoy home workout with a variety of fitness programs
• SmartThings Find
- You can find the location of the watch on the map.
- Available on Galaxy smartphones with Android 8.0 and later
• Hand Wash
- After downloading the Hand Wash app, your watch can automatically detect and time, when you start washing your han...

• Voice guidance provided via headset connected to mobile when exercising with a watch.
• Voice guidance provided for traveled distance and HR data, when Auto Lap feature is enabled during Running/Cycling.
• Improved Blood Oxygen measurement
• Improved system stability and reliability

• Improved system reliability

Similar Models

Frequently Asked Questions

When did SM-R855N get its last update?

The latest build for SM-R855N, R855NKOU1BWK2, was released on December 18, 2023 (2 years ago).

How often does SM-R855N get updates?

SM-R855N has had no new firmware for 34 months, so regular updates have most likely ended.

Is the firmware for SM-R855N official?

Yes, all firmware files for SM-R855N are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-R855N using Odin?

To flash SM-R855N, 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-R855N?

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-R855N.