Apple has just released Watch OS 1.0.1 which includes performance improvements and bug fixes including the following:
Improved performance for:
• Measuring stand activity
• Calculating calories for indoor cycling and rowing workouts
• Distance and pace during outdoor walk and run workouts
• Third party apps
Display support for new Emoji characters
Additional language support for:
• Brazilian Portuguese
For information on the security content of this update, please visit this website: http://support.apple.com/kb/HT1222
To Update, launch the Apple Watch app on your iPhone.
In My Watch > General, go to Software Update.
Make sure your Apple Watch is:
• In range of your iPhone
• Connected to its charger (as it also must be when transferring music)
• Charged at least 50%
Tap Download and Install.