At this time, the touchscreen models are only available for use in the US, CA, UK, Ireland and Mexico. However, if purchased in the available markets and taken to another country it will function as long as you are using it with a phone in an available markets.
If you come to the United States, download the app, and your phone is registered in the US, CA, UK, Ireland, Mexico and Japanese markets your timepiece will function in another country.
To view the available markets for your CZ smart, select the following link:
https://www.citizenwatch-global.com/support/pdf/bluetooth_restrictions.pdf