WhatsApp, like many foreign social platforms (Facebook, Twitter, Instagram, Google services), is blocked by China’s Great Firewall (GFW). You cannot access WhatsApp in China without technical tools.
: Blocked in mainland China (including Beijing, Shanghai, and Shenzhen); works normally in Hong Kong and Macao App Store Removal Whatsapp Group In China
Messages will often hang on "Sending" or fail to deliver. like many foreign social platforms (Facebook