中国可用。 I emailed KR , I got reply below :
Hi , Tom
Thanks for getting back to us.
You will be able to use call, text, sending picture messages on Whatsapp. The one thing you will be unable to use is video calling.
If you have any further questions please feel free to contact us.
Best regards,
Shiraz
KnowRoaming Support
info@knowroaming.com
1-888-357-7347