320dp: a typical phone screen (240×320 ldpi, 320×480 mdpi, 480×800 hdpi
480dp: a large phone screen ~5″ (480×800 mdpi).
600dp: a 7” tablet (600×1024 mdpi).
720dp: a 10” tablet (720×1280 mdpi, 800×1280 mdpi
320dp: a typical phone screen (240×320 ldpi, 320×480 mdpi, 480×800 hdpi
480dp: a large phone screen ~5″ (480×800 mdpi).
600dp: a 7” tablet (600×1024 mdpi).
720dp: a 10” tablet (720×1280 mdpi, 800×1280 mdpi