Also, this has very similar specs to the 2012 Nexus 7 which is basically unusable with Android 5.1
Unusable meaning up to 20 seconds delay between a tap and the expected app opening up or the keyboard showing. Random hangs with the question if you want to kill the offending app.
I don't expect a $4 phone to be fast but unless there are some major differences, I think you'd just get $4 worth of frustration.