A support staff answered as below:
|Arabic language does not appear in the smartwatch 2|
It's a sad answer!
Anyway, that answer is not true. The problem comes from the Sony's API itself. I've found an App that does not use Sony's API for notifications and this App can display all languages that has problem with Sony SmartWatch 2. The App is "Augmented Smartwatch Pro" (http://augmentedtraffic.wordpress.com/ you can get it from Play Store)
Below is a sample to show that SmartWatch 2 can display Arabic via Augmented SmartWatch Pro. I don't know Arabic so I made the sample text from google translate (please forgive me if the text is not correct).
I sent "لم أجد هذا الكتاب القديم" to facebook messenger to my SmartWatch 2. I didn't test notifications from other apps but I think it should be no problem.
|Arabic notification on Sony SmartWatch 2|
|Arabic Notification on Sony SmartWatch 2 with Augmented SmartWatch Pro|
If you have any questions about Augmented SmartWatch Pro, please ask the developer http://augmentedtraffic.wordpress.com .
I hope this blog post will help you find more ways to be happy with your Sony SmartWatch 2.