Bixby is live in Singapore and many other countries. If you have downloaded and face some issues, please follow the below steps:
1. Open settings > Apps > Bixby Home > Storage > Clear Cache and Clear Data
2. Open Bixby Voice and do the same process as shown in number 1.
3. Restart your phone
4. after restarting DOUBLE PRESS BIXBY BUTTON then it will automatically go to set up your BIXBY VOICE!
It is friendly and learning your pronunciation day by day. Press the Bixby and said open map, it will open Google Map. Enjoy it.