Hello, my mobile phone is an Apple phone. Imessage is activated when I use it abroad. Will you be charged for SMS when you move?

Activation of imessage requires normal SMS charges.

When customers go to China Mobile for international roaming, they can dial13800100186 to access the unified customer service hotline for international roaming. The dialing method is: roaming international prefix+8613800100186. For example, in Korea (international prefix 002), dial: 0028613800100186 on your mobile phone. When roaming in other countries, there is no charge for dialing13800100186 with China Mobile, and the communication fee can be paid normally by dialing 13800 186 with other phones or methods.