Android app development always reminds us that we are part of the android hardware and operating system.
We can divide Android phones into certain levels in terms of hardware. Basically, we can classify them as entry-intermediate and advanced hardware-API phones. When developing applications, developing at a level that will work on low-level hardware or API means appealing to more users.
We tend to integrate more and more features and technologies into our applications over time, which means increased code maintenance over time and increased demands on hardware memory etc.