Facebook is the largest social network in the world, and in a recent article published on its blog it provides some details about the most popular Android terminals used with its applications. More than 500 mobile terminals connect to the Facebook servers monthly, about half of them being iOS terminals, about half Android and the rest belonging to the rest of the operating systems for existing mobile terminals.
Overall, about two-thirds of the phones connected to Facebook are equivalent to something released in 2011 or earlier.
Analyzing this data, Facebook found over 10.000 different versions of Android terminals, and over 66% of them have hardware equivalent or weaker than that of the iPhone 4, i.e. hardware that is 4 years old. Because we are talking about well over 100 million Android terminals that use the most popular social network on the globe, things are pretty clear in terms of the types of smartphones that use Android and populate the activation list.
It's been said for years that most Android "smartphones" are actually very cheap mobile phones with weak hardware, and Facebook confirms this again.
