Instagram work on any camera phone with Android 2.2 or above with support for OpenGL ES 2. Instagram for Android cannot be run on tablet devices at this time.
OpenGL ES 2 is a special graphics processing language that exists on modern-day devices. Instagram uses this language and phone’s GPU to make filters fast an efficient, and therefore it’s required to run Instagram. Phones older than 2.2 without OpenGL ES 2 don’t have the technology required to power Instagram’s filters
Instagram for Android is available on Google Play.