"Shatter proof" means that something is designed or made in a way that it will not break into pieces when dropped or subjected to force. It is resistant to shattering or breaking. Full definition
Bailey attends Quest Academy, a charter school in West Haven, and got thinking about a way she could raise funds to donate torwards the purchase of shatter proof glass for police car windshields. (utahpubliceducation.org)
Motorola has launched the Moto Z2 Force in India, this handset comes with shatter proof display and price in India is Rs. 34,999 with Moto TurboPower Pack Mod. (gogi.in)
So basically, water resistant or waterproof is required along with shatter proof screen. (gogi.in)