- Small: Under 3 inches (7.5 cm), at least 426X320dp resolution
- Normal: 3 inches (7.5 cm) to around 4.5 inches (11.5 cm), at least 470X320dp resolution
- Large: 4.5 inches (11.5 cm) to around 10 inches (25 cm), at least 640X480dp resolution
- Extra-large: Over 10 inches (25 cm), at least 960X720dp resolution
By default, your application will not support small screens, will support normal screens,
and may support large and extra-large screens via some code built into Android that
automates conversion, scaling, and resizing of an application onto larger screens.