Samsung says that this update makes the pedometer of their devices more accurate, and it now starts counting steps automatically. Higher pedometer step goals are now supported, and data is now transferred more easily. The accuracy of the heart rate monitor has also been improved. Sleep mode now disables the screen wake-up feature. Finally, you will now have more options for messages to send when you reject a call, and you can even create custom messages.
The update is rolling out today, and your paired Galaxy device will be alerted when the update is available for you.