The Prompt-it MAXI holds smartphones and tablets up to 26cm x 19cm in its tray. It can be used with the iPad Pro 9.7″, iPad 4, iPad3, iPad2, iPad Retina, iPad mini, Galaxy Tab 10.1, Galaxy Tab 2 7″, iPhone, iPod touch and many more.
The MAXI is NOT compatible with iPad Pro 12.9″ which is larger than the tray.