Android set-top box, tablet, phone, what is the difference in development?

Question

Android

Hello.
Actually the question is in the subject, is there any significant difference between these devices during development?

Answer 1

It depends on what, if gamedev is better than a tablet. the screen is large and it is easier to see texture distortions or other imperfections. And for programs, a regular phone is also suitable.

Answer 2

OS version, screen geometry, peripherals (touch, gyroscope, compass, modem...), amount of memory, size and availability of sdcard....

Answer 3

Screen DPI, resolution and aspect ratio, joystick. Everything.