This update includes improvements to functions as listed below.
The exact changes may differ depending on your device model, country, and service provider.
To get the best from your device, please keep your device up to date and regularly check for software updates.

Galaxy Watch3 (SM-R840)

Build Number : R840XXU1DWK2

Tizen version : Tizen 5.5.0.2

Release Date : 2023-12-21

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

Build Number : R840XXU1DVH4

Tizen version : Tizen 5.5.0.2

Release Date : 2022-09-28

• 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.

Build Number : R840XXU1CVG1

Tizen version : Tizen 5.5.0.2

Release Date : 2022-08-16

• GPS
The stability has been improved.

Build Number : R840XXU1CUK2

Tizen version : Tizen 5.5.0.2

Release Date : 2021-11-15

• 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

Build Number : R840XXU1BUE3

Tizen version : Tizen 5.5.0.2

Release Date : 2021-05-27

• Enhanced the auto walking/running icons
• Enhanced the 'Inactive time alerts' icon
• Improved device stability

Build Number : R840XXU1BUD2

Tizen version : Tizen 5.5.0.2

Release Date : 2021-04-29

· Improved system reliability

Build Number : R840XXU1BUD1

Tizen version : Tizen 5.5.0.2

Release Date : 2021-04-08

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

Build Number : R840XXU1BUA8

Tizen version : Tizen 5.5.0.2

Release Date : 2021-02-04

• 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.
• Hand Wash
- After downloading the Hand Wash app, your watch can automatically detect and time, when you start washing your hands
• Improved system stability and reliability

Build Number : R840XXU1BTK1

Tizen version : Tizen 5.5.0.1

Release Date : 2020-11-10

• 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

Build Number : R840XXU1BTHA

Tizen version : Tizen 5.5.0.1

Release Date : 2020-09-23

• Added the new Samsung Health Monitor App for ECG measurements.
※ Available on Galaxy smartphones with Android 7.0 and later

Build Number : R840XXU1BTG6

Tizen version : Tizen 5.5.0.1

Release Date : 2020-08-12

- Blood Oxygen : Check how effectively your respiratory system transfers oxygen to the blood stream.
* Not Available Countries : Algeria, Angola, Canada, France, Iran, Japan, Libya, South Africa, Thailand
- Advanced Running Analysis : Giving you the insights you need to improve your running form.
- VO2max : Check the maximum amount of oxygen you utilize during exercise to improve your endurance
- Sleep score : Check out sleep scores, a new way to understand your sleep patterns.