Re: give developers minimum spec
And your developers will leave for better jobs.
Making developers lives harder with slow dev machines is not the answeer, especially since we're talking Android here and you don't develop Android apps on Android. Mid-range devices and older devices are useful in the test drawer but you also need the latest devices so you can test against the latest OS features.
The answer is to teach junior devs to care about resource usage, not tie one hand behind their back to hamper them.